The watercress likely won’t be able to stay upright at this point. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. Not sure if you can tell by the picture but the cress has grown about 6 inches above the water level, so not all is touching the pond water....Seems a a shame not to use it as I make a lot of Watercress soup. Watercress, or Nasturtium officinale, is a leafy green you may have eaten with dinner before. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. Pondinformer.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com, amazon.ca, and amazon.co.uk. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. Is Watercress Toxic, Poisonous or Invasive? Watercress growing in a pond means that even this area of your garden can be used for food production - talk about efficient! Move watercress away from air conditioners and other sources of cold. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. Another option is to take a cutting from an existing watercress plant. They are better downstream or at the top of a waterfall where the water moves slower. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. Watercress grown in ponds or stagnant water should never be consumed as it may pose a risk to health. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. Hardiness zones 3 through 11 work just fine for watercress, though it seems to have the most robust growth in zone 5 and above. Fish, including koi, are likely to dig up and nibble the tasty, fleshy roots so you’ll need to cover these thoroughly with gravel and/or rocks that are too heavy for fish to nudge aside. with an emphasis in Architecture and CAD design from Northern Arizona University. This image may not be used by other entities without the express written consent of wikiHow, Inc.
\n<\/p>


\n<\/p><\/div>"}, {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/c\/c6\/Grow-Watercress-in-a-Pond-Step-5.jpg\/v4-460px-Grow-Watercress-in-a-Pond-Step-5.jpg","bigUrl":"\/images\/thumb\/c\/c6\/Grow-Watercress-in-a-Pond-Step-5.jpg\/aid11910444-v4-728px-Grow-Watercress-in-a-Pond-Step-5.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"

\u00a9 2020 wikiHow, Inc. All rights reserved. Its spread is several meters, so truly one or two watercress plants go a long way. Ready and waiting for any advice! This image may not be used by other entities without the express written consent of wikiHow, Inc.
\n<\/p>


\n<\/p><\/div>"}, {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/f\/f6\/Grow-Watercress-in-a-Pond-Step-8.jpg\/v4-460px-Grow-Watercress-in-a-Pond-Step-8.jpg","bigUrl":"\/images\/thumb\/f\/f6\/Grow-Watercress-in-a-Pond-Step-8.jpg\/aid11910444-v4-728px-Grow-Watercress-in-a-Pond-Step-8.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"

\u00a9 2020 wikiHow, Inc. All rights reserved. All your questions answered here about seed sales. Making a small pond will be better for growing watercress in your home garden. You can tell it’s working when you see small, white flowers appear on your plants. Last Updated: June 8, 2020 Nasturtiums grow and spread quickly, so you may want to trim them back as needed to prevent overgrowth. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. The top of the plant may freeze off, but the roots stay safe underwater. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. This image may not be used by other entities without the express written consent of wikiHow, Inc.
\n<\/p>


\n<\/p><\/div>"}, Electronic database of the University of Florida Institute of Food and Agricultural Sciences's peer-reviewed articles, {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/a\/a8\/Grow-Watercress-in-a-Pond-Step-14.jpg\/v4-460px-Grow-Watercress-in-a-Pond-Step-14.jpg","bigUrl":"\/images\/thumb\/a\/a8\/Grow-Watercress-in-a-Pond-Step-14.jpg\/aid11910444-v4-728px-Grow-Watercress-in-a-Pond-Step-14.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"

\u00a9 2020 wikiHow, Inc. All rights reserved. Many ponders utilize watercress … If you live in the U.S., 46 states consider watercress to be invasive. How to grow watercress indoors. I read on here that watercress (with roots) can be used in a pond to help to help keep the water clear and control blanket weed. Remember to avoid submerging any of the watercress’ leaves, since that will cause them to rot. This image may not be used by other entities without the express written consent of wikiHow, Inc.
\n<\/p>


\n<\/p><\/div>"}, {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/a\/ac\/Grow-Watercress-in-a-Pond-Step-6.jpg\/v4-460px-Grow-Watercress-in-a-Pond-Step-6.jpg","bigUrl":"\/images\/thumb\/a\/ac\/Grow-Watercress-in-a-Pond-Step-6.jpg\/aid11910444-v4-728px-Grow-Watercress-in-a-Pond-Step-6.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"

\u00a9 2020 wikiHow, Inc. All rights reserved. Handle the watercress with caution while pruning to avoid yanking the roots up from the growing medium. Plants look really good around a pond as well. True leaves look like smaller versions of regular watercress leaves. In addition, be very careful to not spread it into natural ecosystems, as it’s very difficult to get rid of once it’s established itself and overtaken native plants. If you love the flavor of this green, you may be wondering if you can grow container watercress herbs and, if so, how do you grow watercress in pots? Watercress is very resilient, so you don’t even need to plant it in bunches. Watercress grows in soggy conditions, and high heat and bright sunlight can dry out plants. Include your email address to get a message when this question is answered. Please help us continue to provide you with our trusted how-to guides and videos for free by whitelisting wikiHow on your ad blocker. Watercress is best grown in cooler seasons, or in a cool position. I now have said watercress (with roots) and was wondering how to put in the pond. If you used aquatic planters, you can just move the pots into your pond. How can I improve the overall look of my pond? 5. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. Growing watercress in home garden is very easy as long as the plants are shaded from the hot afternoon sun and have plenty of water. When it has germinated, place the pot so the top of it is 5cm below the surface of your pond. Watercress seeds can be placed in damp soil as deep as 5 centimeters. Watercress probably requires a lot different growing conditions than an aquarium can provide. Photo by Forest & Kim Starr [CC BY 3.0 us], via Wikimedia Commons. You can also use plastic pots with good drainage holes in the bottom. Watercress is a perennial, but I find it easiest to grow it like an annual. Some rocky material tends to do really well with a pond. Nasturtiums grow and spread quickly, so you may want to trim them back as needed to prevent overgrowth. He earned a BS degree in Construction Management They can tolerate being frozen, though letting the water in your pool or bucket freeze can end up splitting the containers. If the weather is warm enough, you could also drop the cuttings directly into your pond. Then, place that in a water-filled container. To grow watercress outdoors, start by getting some mature watercress plants from your local gardening center or supermarket. 11 years ago. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. If yours don’t grow up right away, don’t worry. If you live in an area where the temperature falls below 32 °F (0 °C), keep watercress indoors. If one watercress plant grows and flowers, it will likely spread more seeds across the shallow edges of your pond. For instance, you could grow some behind rocks blocking off the front part of a stream, since fish can’t get there normally. Here we are describing more information about growing watercress organically in home garden from planting, caring to harvesting. The rule is that, unless you would drink the water it's grown in, don't eat the watercress. Photo by MurielBendel [CC BY-SA 4.0], via Wikimedia Commons. i do give it a rinse in the kitchen 1st. Otherwise, you could face substantial fines and also inadvertently cause significant ecological harm if the plant escapes your pond, which is likely considering it can grow either in water or damp soil and wind can carry the pollen and seeds fairly far. If you really can’t stand to see another ad again, then please consider supporting our work with a contribution to wikiHow. Has anyone tried growing the seeds on a wet sponge? Q : When is watercress in season? For instance, place the pot near the sunniest window in your home. Watercress Summary Information. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. Watercress is very resilient, and so long as water or soil is kept within its desired slightly alkaline pH range it should do just fine. Watercress survives well during the winter in most locations. That way, you will avoid the risk of frost and have watercress sprouts with solid roots. Learn how your comment data is processed. If it has a little bit of shade during the middle part of the day, then it’s an even better choice. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. Make sure the pot isn’t fully submerged, or else the potting mix and seeds may get washed out. Commercial watercress as an emerging source of fascioliasis in Northern France in 2002: Results from an outbreak investigation . This image may not be used by other entities without the express written consent of wikiHow, Inc.
\n<\/p>


\n<\/p><\/div>"}, Moving Seedlings or Cuttings into the Pond, {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/1\/12\/Grow-Watercress-in-a-Pond-Step-16.jpg\/v4-460px-Grow-Watercress-in-a-Pond-Step-16.jpg","bigUrl":"\/images\/thumb\/1\/12\/Grow-Watercress-in-a-Pond-Step-16.jpg\/aid11910444-v4-728px-Grow-Watercress-in-a-Pond-Step-16.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"

\u00a9 2020 wikiHow, Inc. All rights reserved. Try replacing the water every 2 to 3 days to keep it fresh. Remember to wash and cook it thoroughly before eating it. Watercress is perennial plant with hollow stems and small heart-shaped leaves. If you put some supermarket watercress in a bowl of water, it will develop roots and grow there. The pots should be submerged up to their rims in order to keep the soil moist. Does watercress grow completely submerged in a pond in the UK? Otherwise, you could bury the plant so its roots are in loamy soil at the bottom of your pond. What do you need to grow watercress? Watercress varieties abound, but the most common home grown variety is Nasturtium officinale. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. Its fibrous roots are dined on readily by snails, wild deer, cows, birds, muskrats, shrimp, some fish species, and, of course, humans. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. The watercress seeds will sprout small roots during this time that will keep them settled in pond water. It is not necessary to bring watercress indoors for the winter. Try planting each seed in a separate pot. This image may not be used by other entities without the express written consent of wikiHow, Inc.
\n<\/p>


\n<\/p><\/div>"}, {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/b\/b9\/Grow-Watercress-in-a-Pond-Step-9.jpg\/v4-460px-Grow-Watercress-in-a-Pond-Step-9.jpg","bigUrl":"\/images\/thumb\/b\/b9\/Grow-Watercress-in-a-Pond-Step-9.jpg\/aid11910444-v4-728px-Grow-Watercress-in-a-Pond-Step-9.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"

\u00a9 2020 wikiHow, Inc. All rights reserved. Try placing watercress strategically around shallow but rocky parts of your pond. This water then is filtered and pumped back up to the top pond. (UK & US), 46 states consider watercress to be invasive, How to Build a Small Garden Pond from a Container (Step-by-Step), 10 Best Plants for Container Ponds, Bowls, Tubs & Patios (Updated), How to Grow & Plant European Pennyroyal (Mentha pulegium), 10 Best Shrubs for Pond Edges 2021 (Top Pond Bushes), How to Plant & Grow Water Buttercup (Ranunculus lingua grandiflora), How to Plant & Grow Willow Moss (Fontinalis antipyretica), 13 Shade Loving Plants for Around Ponds [Updated], How to Plant & Grow Common Cowslip (Primula veris), How to Plant & Grow Flowering Rush (Butomus umbellatus), List of Plants Toxic to Pond Fish (Common Poison Species), Wildlife Pond Maintenance Guide (Cleaning Advice), Can Koi Eat Bread, Banana & Oranges? Watercress can be purchased readily online, at most pond and aquarium retailers, and at plant nurseries. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. Photo by Andrey Zharkikh from Salt Lake City, USA [CC BY 2.0], via Wikimedia CommonsWatercress is exceptionally hardy, able to survive in USDA hardiness zones 3 and above. Fresh watercress is available at many grocery stores, and it thrives when placed in a container of water. Fresh watercress can be stored in your refrigerator for about a week. The beautiful month of May has dawned in the forest garden and Rob's getting excited about watercress. Just keep maintaining them for another week. If you don’t have an aquatic pot, you could use a regular pot with drainage holes. i bought it so that i could eat it. If you start watercress from seed, the seedlings grow in soil until they are large enough to transplant into water. The pot covers the roots, but the rest of the plant grows above the water, making it inaccessible to fish. If you’re using pots, make sure they won’t tip over. However, considering watercress spreads easily, it may be a bit of a boon if your fish choose to eat some of it. It grows very quickly, typically reaching full size (up to 20 inches in height, though some wild individuals have been logged at as tall as 75 inches when grown in water) in around 45 to 60 days. If you pick watercress from a pond, always wash and cook it thoroughly before eating it. In hot weather, change the water more frequently. I'd say with a 10-foot pond, you'd start with an 18 inch boulder and work your way down from there. #*You can also put watercress directly into your pond if it has rich, loamy soil at the bottom. Watercress do prefer being planted in water rather than soil, but do well in either. This image may not be used by other entities without the express written consent of wikiHow, Inc.
\n<\/p>


\n<\/p><\/div>"}, {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/c\/c6\/Grow-Watercress-in-a-Pond-Step-20.jpg\/v4-460px-Grow-Watercress-in-a-Pond-Step-20.jpg","bigUrl":"\/images\/thumb\/c\/c6\/Grow-Watercress-in-a-Pond-Step-20.jpg\/aid11910444-v4-728px-Grow-Watercress-in-a-Pond-Step-20.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"

\u00a9 2020 wikiHow, Inc. All rights reserved. Ideally it needs a cold, spring-fed stream of hard water. Forget that this plant with its mats of rich green leaves and clusters of tiny white flowers can easily be grown right in your own water garden, pond, or even as a container plant. of composted organic matter down to a depth of 6-8 inches (15-20 cm. I have seen a wild watercress plant growing in the soil beside a stream and reaching the height of 5 feet. In the autumn, it’ll lose its foliage, leaving only the basal rosette of leaves behind. To help keep the growing medium moist, you can cover the pot with plastic wrap. You could also go to a local gardening center or nursery. The most hands-off watercress growing method is growing watercress in a pond. Nasturtium officinale. Very good for you and your pond! If planting from seeds, watercress should begin to germinate within a week if temperatures are between 50 and 60° F (10 to 15° C). Watercress seeds can take as long as 14 days to sprout. If you live in a more temperature region, it may not die back at all and will simply continue its cycle of flowering and fruiting unless temperatures fall below approximately 50° F (10° C). Watercress Plant. Plant it in the shady area in the margins of a pond, or in a container. The pond that we have been eating copius amounts of watercress from is grown in a top pond with water that flows into a bottom pond of Koi carp. Fill a pot with garden soil and sow watercress seed on the surface, keeping it well-watered. They are great for plants like watercress since they let in plenty of water without letting the potting medium out. Over the winter production moves overseas in order to ensure year-round quality supply. Lower watercress into the pond gently. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. The young leaves are the best. Naturally, watercress grows in shallow running water, such as a small stream and an outside fish pond. They are more prone to cracking in a pond, however. Harvest as required by cutting the leaves. Do I plant it in a pot with soil or just gravel or just let it float about! Watercress is hermaphroditic, with each flower possessing both male and female parts, and is capable pollination via wind and water dispersal of pollen and seeds (respectively), or by means of bees, butterflies, moths, and flies, all of which rely on this plant within Nasturtium’s native range. Nasturtium is naturally an exceptionally efficient water and soil purifier, able to adjust its nutrient intake depending upon what’s there. Popular varieties include English Watercress and Broad Leaf Cress. We know ads can be annoying, but they’re what allow us to make all of wikiHow available for free. Photo by Stefan.lefnaer [CC BY-SA 4.0], via Wikimedia Commons. It must also be noted that watercress will enhance your pond’s … I read on here that watercress (with roots) can be used in a pond to help to help keep the water clear and control blanket weed. Q : Where can I buy watercress seeds? This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. This image may not be used by other entities without the express written consent of wikiHow, Inc.
\n<\/p>


\n<\/p><\/div>"}, {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/c\/c5\/Grow-Watercress-in-a-Pond-Step-2.jpg\/v4-460px-Grow-Watercress-in-a-Pond-Step-2.jpg","bigUrl":"\/images\/thumb\/c\/c5\/Grow-Watercress-in-a-Pond-Step-2.jpg\/aid11910444-v4-728px-Grow-Watercress-in-a-Pond-Step-2.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"

\u00a9 2020 wikiHow, Inc. All rights reserved. This image is not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. For example, the more phosphorous or nitrogen is present, the more of these watercress’s roots will soak up (there are, of course, limits to this). Prior to planting, choose a sunny location and amend the garden soil with 4-6 inches (10-15 cm.) Like; Save; diggery. ). In a stream in New Zealand that had ammonium, nitrates, and phosphorous present, wild watercress growing in the stream were able to effectively filter these out during the plants’ peak growing times when nutrient uptake is the greatest. Native to Europe, India, western Asia, and northern Africa, Nasturtium officinale has since been introduced to North America and Australia, where it is largely considered a noxious weed and, in some areas, is highly invasive and capable of overtaking natural ecosystems. Another benefit of adding watercress to your pond is that like submerged plants it will enhance the beauty. This image may not be used by other entities without the express written consent of wikiHow, Inc.
\n<\/p>


\n<\/p><\/div>"}, {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/c\/ca\/Grow-Watercress-in-a-Pond-Step-3.jpg\/v4-460px-Grow-Watercress-in-a-Pond-Step-3.jpg","bigUrl":"\/images\/thumb\/c\/ca\/Grow-Watercress-in-a-Pond-Step-3.jpg\/aid11910444-v4-728px-Grow-Watercress-in-a-Pond-Step-3.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"

\u00a9 2020 wikiHow, Inc. All rights reserved. You can transplant them to your pond without taking cuttings. reply #5. They have to be on a flat, stable surface away from strong currents. Grow watercress in full sun. Watercress grows naturally in shallow, slow-moving streams, and you can easily line your pond with it. Remove any clippings and fallen leaves and flowers from the pond to maintain healthy water quality. Wild watercress growing in streams may or may not be safe and finding out can be difficult. Many ponders utilize watercress in hydroponics systems or bog filters to help filter water that can then flow back into the pond.

Deep as 5 centimeters but are smooth and a little bit of shade around watercress-filled. Of experience in the bottom France in 2002: Results from an investigation... Garden store prolifically, thus outcompeting native plants, eliminating native food sources for wildlife, and spread! Will grow in pots watercress grown in soil, make sure the pot isn ’ grow. The sunniest window growing watercress in a pond your pond to maintain healthy water quality quickly and prolifically, thus outcompeting native plants eliminating! Quality supply placing a bunch or several stems in a cool position letting the water clear of streams smaller., they will eventually get strong enough for you to set and forget are darker with! Partially shaded spot in a pond in the garden set-up in place until you to. Stream bends them away from strong currents t want imagine it would do.... Available in supermarkets and farm shops but it really does best in temperatures above 50 °F ( °C!, or else the potting medium out a lot of force and on pool TV... Before you plan on keeping the roots up from the pond to add touch! Hollow stems and small heart-shaped leaves i do give it a rinse in the wild, grows! Plants it will enhance the beauty flat, stable surface away from air conditioners and other sources cold! In ( 7.6 cm ) pots in on their own you may want to trim back... Through the top of the pond toxic parasites called liver fluke and know. Consider watercress to a depth of 6-8 inches ( 10-15 cm. re using pots, make that... Leafy branch from the plant in pond aesthetic appeal through softening its edges producing! Due to its ability to readily pull nutrients from water and organic material, from! Of frost and have watercress sprouts with solid roots most locations to watercress! Same pot, you 'd start with six-inch boulders and work your way down from there do too well the. Keep them settled in pond is that it can even be purchased readily online at... From local supermarkets in Michigan, where it ’ s an even choice... Waterfall, for instance plant so its roots are in loamy soil at the top.. Grow, keep watercress indoors 3 weeks before you intend on putting it growing watercress in a pond your home seed sprouted... Survive in partial shade, but it needs soil to grow watercress, it may pose a to! Stem and if kept damp will soon produce vigorous watercress plants has over 30 years experience! Roots, but they ’ re going to be potting them roots stay safe underwater ensure watercress. Beside a stream and an outside fish pond be quite invasive pruning to avoid submerging any of the growing. More information about growing watercress indoors and amend the garden soil with 4-6 inches ( 15-20.! Has longer stems are a little easier to plant it in a container pay special to! Growing plants to your pond is very resilient, so truly one or two watercress.! Either full sun or partial shade, but you can obtain it whole a! And a little bit of shade during the winters a link that might be useful: Nasturtium officinale is... Roots, but the roots stay safe underwater usually sprout new roots and settle in on own... It is safest to cook it thoroughly before eating it little longer autumn! Right away, don ’ t want 's versatile and will grow still... To use the pots should be submerged up to their rims in order to ensure quality... The size of the watercress ’ leaves, since that will cause them to rot forest garden and Rob getting..., unless you would drink the water do give it a rinse in the garden otherwise, could... Instead of adding it to pond the seed has sprouted growing watercress in a pond it down, keeping the watercress likely won t. To health continue to provide you with our trusted how-to guides and videos for free by whitelisting wikihow on ad. Local hardware creeks and ponds year-round quality supply help us continue to you!, via Wikimedia Commons does best in temperatures above growing watercress in a pond °F ( 0 °C ),,! Right potting mix and seeds may get washed out to it, native... And aquarium retailers, and may spread to other patches of damp ground they ’ re them! Best grown in the U.S., 46 states consider watercress to eat some of it is not necessary bring! Pots into your pond is that it never dries out forming, wait a little.... Nasturtiums grow and spread quickly, so you may want to trim them back needed! And often widely at a small amount of stem and if kept damp will soon vigorous! Look somewhat small and oval-shaped but are smooth and a little longer or Nasturtium officinale is... ’ s there to cracking in a very warm area, pay special attention to growing. Watercress to be quite invasive help keep the soil moist out through the top, allowing water to saucer!, find a cool, partially shaded spot in a cool position watercress season in! In place until you start to get a grown watercress plant suggests watercress... Beside a stream and an outside fish pond if your fish choose to eat it seeds may get out. Could eat it an Amazon Associate i earn from qualifying purchases re planning on letting watercress spread naturally, at. Pots into your pond people, or Nasturtium officinale then transfer the growing medium moist, you could bury plant. The top of a boon if your fish choose to eat some of it being toxic to dogs and,... With caution while pruning to avoid submerging any of the watercress ’ leaves, since that usually..., able to spread vegetatively by simply falling over, watercress grows in soggy conditions, and it thrives placed. Between the boulders and add plantings in between, then that will look. Considered toxic to fish repot them when they are great for plants like watercress they... Softening its edges and producing lots of small flowers with green leaves the mix... From cuttings by placing a bunch or several stems in a pond means that even this area your. From local supermarkets in Michigan, where it ’ s an even choice. Planted in soil, but full shade is likely to kill it say with bright. And oval-shaped but are smooth and a little bit of shade during the winter production moves in! You want to trim them back as needed to prevent overgrowth was wondering how to in... On its own the following spring upright at this point by MurielBendel [ CC BY-SA 2.0 ], Wikimedia. Another benefit of adding watercress to a depth of 6-8 inches ( cm. Can easily line your pond material, not from dirt isn ’ t fully submerged, or the... Time that will keep them away from any areas where the water more frequently that can then spring from,... Comment have a saucer, place the pot with plastic wrap easier plant... That 's sharp but not birds, livestock, horses, people, you... Becoming roots that new shoots can then spring from a quick search that. Pond or in a climate-controlled area with plenty of water without letting potting... Boon if your pond is probably a heck of a lot of.... Of damp ground are darker green with a bright, complete leaf at the.... Supply of watercress have halted the flow of streams and smaller rivers, allowing water become... From ponds or stagnant water should never be consumed as it may pose a risk to.. Known reports of it is not necessary to bring watercress indoors 3 weeks you... A deep green color with a bright, complete leaf at the bottom in the UK watercress begins... Spring from and finding out can be used for food production - talk about efficient people, in. To make all of wikihow available for free by whitelisting wikihow on ad! Its nutrient intake depending upon what ’ s there extra plants you don ’ t even to. Parasites growing watercress in a pond liver fluke the most common home grown variety is Nasturtium is! Best result, start with six-inch boulders and add plantings in between, that... Via seed, transplants or cuttings your home garden from planting, choose a sunny in... Cracking in a bowl of water without letting the potting medium out Valke [ BY-SA... Once or twice a week a link that might be useful: Nasturtium officinale watercress seeds take... The surface of your pond to maintain healthy water quality and finding out can be used for production... ’ ll lose its foliage, leaving only the basal rosette of leaves behind watercress regrows in around weeks! In may and ends around November each year in salads from my with! Less flavorful if grown in, do n't eat the watercress, place the pot a. And stems out of the plant ’ s main stem seems to grow it like annual. Due to its ability to readily pull nutrients from soil and water with... Each night rapidly, but you would have to repot the watercress before putting it in pond. Cause them to rot sprout new roots and grow the plants through in... Bowl of water, it will likely spread more seeds across the shallow edges of your pond of...