Watercress Pond Plant: Growing, Care & Seeds Guide | Nasturtium officinale

Watercress (Nasturtium officinale) is a versatile and nutritious plant that is often grown in ponds or other aquatic environments. It is a member of the brassicaceae family and is known for its peppery taste and vibrant green leaves.

When growing watercress, it is important to provide it with the right conditions to thrive. This includes a shallow pond or container with plenty of water, as well as partial shade. The plant also prefers a slightly acidic pH level and nutrient-rich soil. With the right care, watercress can grow quickly and provide you with a bountiful harvest.

One of the benefits of growing watercress is its nutritional value. It is rich in vitamins A, C, and K, as well as minerals like iron and calcium. Watercress is also low in calories and high in antioxidants, making it a healthy addition to your diet.

If you’re interested in growing watercress from seeds, it’s important to start with fresh seeds and soak them in water overnight before planting. This will help to improve germination rates. Once planted, the seeds typically germinate within 14-21 days. It’s important to keep the soil moist during this time to ensure successful germination.

In conclusion, watercress is a wonderful plant to grow in ponds or other aquatic environments. With the right care and conditions, it can provide you with a healthy and tasty addition to your diet. Whether you choose to grow it for its nutritional value or simply enjoy its peppery flavor, watercress is sure to be a welcome addition to your garden.

Watercress Pond Plant: Growing, Care & Seeds Guide

Watercress Pond Plant: Growing, Care & Seeds Guide

Watercress (Nasturtium officinale) is a popular aquatic plant that thrives in ponds and other bodies of water. Known for its peppery taste and vibrant green leaves, watercress is not only a culinary delight but also an excellent addition to any garden or water feature.

Growing Watercress

Growing Watercress

Watercress can be grown either by planting its seeds or by transplanting a small watercress plant. If you choose to start from seeds, it’s best to sow them directly into the water or into a floating planter. The plant needs a constant source of water and prefers nutrient-rich soil.

Watercress prefers partially shaded areas, so make sure to choose a suitable spot in your pond or water feature. If your watercress is growing in a container, make sure it is deep enough to accommodate the plant’s roots.

Regularly pruning the watercress is essential to keep it under control. It grows vigorously and can quickly take over a pond if left unchecked. Be sure to remove any dead leaves or stems to prevent them from decomposing and affecting the water quality.

Care for Watercress

Care for Watercress

Watercress requires a consistent water supply. If you’re growing it in a pond, make sure the water level remains stable. If you’re growing it in a container, check the water level daily and replenish as needed.

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Make sure the water temperature remains between 45 to 75 degrees Fahrenheit (7 to 24 degrees Celsius). Watercress is a cold-water plant, so it may struggle in warmer temperatures. If necessary, you can use a shade cloth or partial shading to protect the plant from excessive heat.

Regularly fertilize the watercress to ensure it receives the necessary nutrients. You can use a general-purpose water-soluble fertilizer or a specific aquatic plant fertilizer, following the manufacturer’s instructions.

Collecting Watercress Seeds

If you want to collect watercress seeds from your plants, allow the flowers to bloom and set seed pods. The seed pods will turn brown when they are ripe. Carefully collect the pods and open them to extract the small black seeds inside.

Store the seeds in a cool, dry place until you’re ready to plant them. Watercress seeds have a short viability period, so it’s best to use them within a year.

Watercress is a beautiful and versatile pond plant that adds a distinctive touch to any water garden. With proper care and attention, you can enjoy its fresh, peppery flavor and lush green foliage year-round.

Nasturtium officinale Varieties

Nasturtium officinale Varieties

Nasturtium officinale, commonly known as watercress, is a versatile pond plant that comes in various varieties. These varieties differ in their growth habits, leaf shapes, and flavors. Here are some popular nasturtium officinale varieties:

1. English Watercress

1. English Watercress

English watercress is one of the most popular varieties. It has small, dark green leaves with a peppery and tangy flavor.

2. Broadleaf Watercress

Broadleaf watercress has larger leaves compared to other varieties. It has a milder flavor and is often used in salads.

3. Upland Watercress

3. Upland Watercress

Upland watercress is a variety that can grow outside water bodies. It has compact growth and is ideal for growing in containers.

4. Indian Watercress

4. Indian Watercress

Indian watercress, also known as Indian cress or Kankuna in Hindi, has a unique flavor and is commonly used in Indian cuisine.

5. Japanese Watercress

5. Japanese Watercress

Japanese watercress, or mizuna, has feathery leaves and a mild, mustard-like flavor. It is often used in stir-fries and salads.

These are just a few examples of the many nasturtium officinale varieties available. Each variety has its own distinct characteristics, so you can choose the one that suits your taste and gardening needs.

Choosing a Suitable Location

Choosing a Suitable Location

When growing watercress, it is important to choose a suitable location that meets the plant’s requirements. Here are some factors to consider when selecting the ideal spot:


Watercress thrives in partial shade or dappled sunlight. It prefers a location that receives at least 4-6 hours of sunlight a day. However, too much direct sunlight can cause the leaves to become bitter and tough, so providing some shade during the hottest parts of the day is beneficial.

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Watercress prefers cool temperatures between 50 and 70 degrees Fahrenheit (10-21 degrees Celsius). It can tolerate slightly warmer temperatures, but it may bolt and go to seed more quickly in hotter conditions. It is best to avoid planting watercress in areas with extreme heat.

Water Source

As its name suggests, watercress requires a constant source of clean, flowing water for optimal growth. It is commonly found growing in streams, ponds, or shallow pools. If you are growing watercress in a garden setting, ensure that it has access to a reliable water source, such as a nearby water feature or a constant water supply.

Soil Quality

Watercress prefers fertile, loamy soil with a pH level between 6.0 and 7.5. It thrives in soil that is rich in organic matter and well-draining. Avoid planting watercress in heavy clay or sandy soils, as they can hinder the plant’s growth and productivity.

By taking these factors into account and selecting a suitable location, you can provide your watercress plants with the optimal growing conditions they need to thrive and produce a bountiful harvest.

Preparing the Soil

Preparing the Soil

Before planting watercress, it is important to prepare the soil to provide the best conditions for growth. Here are some steps to consider:

  1. Choose a location: Select a spot that receives partial shade or full sun, as watercress thrives in both conditions. Ensure the area has access to a water source, as this plant requires constant moisture.
  2. Clean the area: Remove any weeds, rocks, or debris from the chosen location. These can hinder watercress growth and compete for nutrients.
  3. Loosen the soil: Use a garden fork or tiller to loosen the soil in the designated area. This will improve drainage and allow watercress roots to grow deep. Avoid compacted soil, as it can prevent proper growth.
  4. Amend the soil: Add organic matter, such as compost or well-rotted manure, to enrich the soil with nutrients. This will promote healthy watercress growth and improve overall soil quality.
  5. Level the soil: Smooth out the soil surface using a rake, ensuring it is even and free of large bumps or depressions. This will create an ideal planting bed for watercress.

By following these steps and preparing the soil adequately, you can create an optimal growing environment for your watercress plants.

Planting Watercress

Watercress is a semi-aquatic plant that thrives in wet soil or shallow water. It can be grown in a garden bed or in containers, as long as it has a constant supply of water. Here’s a step-by-step guide on how to plant watercress:

  1. Choose a location: Watercress prefers shady areas with partial sunlight. It can also be grown indoors near a window that receives indirect sunlight.
  2. Prepare the soil: Watercress needs fertile, well-draining soil. Loosen the soil and remove any debris or weeds. If you’re growing watercress in a container, choose a pot with good drainage.
  3. Add organic matter: Mix in compost or well-rotted manure to improve the soil’s fertility.
  4. Plant the watercress: Place watercress seeds or transplants about 6 inches apart, pressing them lightly into the soil. If you’re using transplants, make sure to space them adequately to allow for their spreading nature.
  5. Water thoroughly: Watercress needs to be constantly moist, so water the plants regularly. If you’re growing watercress in a container, keep the pot sitting in water to ensure a constant supply.
  6. Mulch the soil: Apply a layer of mulch around the plants to retain moisture and suppress weed growth.
  7. Maintain moisture levels: Keep the soil consistently moist by watering regularly. Avoid letting the soil dry out completely.
  8. Harvesting: Once the watercress reaches a height of about 6-8 inches, you can start harvesting the leaves. Cut the outer leaves near the base to encourage new growth. You can continually harvest watercress throughout the growing season.
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By following these planting tips, you can grow watercress successfully and enjoy its fresh and peppery flavor in your salads, sandwiches, and soups.


What is watercress?

Watercress is a pond plant that belongs to the Nasturtium officinale family. It is an aquatic perennial herb that can grow in shallow water or moist soil along the edges of ponds, streams, and rivers.

How do you grow watercress?

Watercress can be grown from seeds or transplanted from established plants. It prefers cool, running water, but can also be grown in containers with adequate drainage. Plant the seeds in moist soil or place the plants in water and they will start to grow. Regular watering and pruning are necessary to maintain healthy plants.

What are the care tips for watercress plants?

Watercress plants require partial shade to full sun and regular watering to keep the soil or water moist. They can be fertilized with a balanced liquid fertilizer once a month. Regular pruning is also essential to prevent the plants from becoming overgrown and to maintain their compact growth.


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I absolutely love the beauty and simplicity of watercress as a pond plant! As a female gardener, I find watercress to be a stunning addition to any water feature. Its delicate green leaves and delicate white flowers add a touch of elegance and tranquility to my garden. Growing watercress is surprisingly easy. All it needs is a shallow pond or container with clean, fresh water. I like to plant the seeds directly into the soil or float them on the water’s surface. Within a few weeks, the seeds will sprout, and I’ll have beautiful watercress plants ready to be enjoyed. Caring for watercress is fairly simple too. It prefers cool temperatures and partial shade, so I make sure to place it in a spot that gets a few hours of sunlight each day. I also ensure that the water is consistently moist, either by watering it regularly or by keeping it in a pond with a water source. Apart from their aesthetic appeal, watercress has numerous health benefits. It is packed with vitamins and minerals and is known for its peppery taste. I love adding it to salads or using it as a garnish for soups and sandwiches. It’s not only delicious but nutritious too! In conclusion, watercress is a beautiful, easy-to-grow plant that adds charm and tranquility to any pond or water feature. Its care is minimal, and its benefits are numerous. I can’t recommend watercress enough for all gardeners, especially those who love a touch of elegance and health in their gardens.

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Watercress is a fantastic addition to any pond or water garden. Its vibrant green leaves and delicate white flowers bring a touch of beauty and elegance to the water feature. As a male reader with a keen interest in gardening, I find watercress to be a fascinating plant with a plethora of benefits. Growing watercress is relatively easy, and it thrives in both full sun and partial shade. The plant prefers water that is slightly alkaline and requires a constant water supply. This makes it a perfect choice for growing in a pond or water feature. The plant can be grown from seeds or cuttings, and it is advisable to start with a small plant until it establishes itself. Caring for watercress mainly involves keeping the water clean and well-aerated. Regular pruning will help to control its growth and prevent it from overshadowing other plants. Adding fish to the pond can also be beneficial, as they provide natural fertilizer for the watercress. Watercress is not just a visually appealing plant; it also has several health benefits. Rich in vitamins and minerals, it is known for its high antioxidant properties and has been used for centuries in traditional medicine. Consuming watercress can improve digestion, boost the immune system, and promote healthy skin. In conclusion, watercress is a versatile and attractive plant that adds beauty and health benefits to any pond or water garden. Its easy cultivation and numerous advantages make it a must-have for any gardener, especially those with a passion for aquatic plants.

John Smith

Watercress is a versatile plant that can be grown in a pond or a container. As a male reader, I find this article on watercress incredibly helpful and informative. It provides all the necessary information about growing and caring for watercress, as well as a guide on how to obtain its seeds. I particularly appreciate the step-by-step instructions on how to grow watercress in a pond. The article explains the importance of water quality and temperature for successful growth. It also offers valuable tips on maintaining a suitable pH level and how to plant the seeds properly. Furthermore, the guide on caring for watercress is detailed and easy to follow. It covers aspects such as pruning, fertilization, and protection against pests and diseases. As someone new to gardening, I find these tips extremely valuable in ensuring the healthy growth of my watercress plants. The article also offers guidance on harvesting watercress and using it in various culinary dishes. It’s great to learn about the different ways to incorporate this nutritious plant into my meals. Overall, this article on watercress is comprehensive and user-friendly. It has equipped me with the knowledge and confidence to successfully grow and care for watercress, whether in a pond or a container. I look forward to trying my hand at cultivating this versatile plant and reaping its many benefits.

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Tom Johnson

I really enjoyed reading this article about watercress pond plants. As a male reader, I find it fascinating to learn about different plants and their care requirements. Watercress, or Nasturtium officinale, is a plant that I have always been curious about growing in my own pond. The article provided a comprehensive guide on growing watercress, which is helpful for beginners like me. I learned that watercress prefers cool temperatures and partial shade, which is important to keep in mind when choosing a location for planting. The article also gave helpful tips on how to propagate watercress from seeds and maintain its growth. I appreciate the details provided on caring for watercress, such as the importance of keeping the soil moist and providing regular fertilization. The fact that watercress needs a constant water supply also caught my attention, as it adds another layer of complexity to its care. Overall, I found this article to be informative and engaging. It has definitely sparked my interest in growing watercress in my pond. I look forward to implementing the tips and techniques mentioned in the guide and watching my watercress thrive. Thank you for sharing this valuable information!


The article provides a comprehensive guide on growing and caring for watercress, focusing on the Nasturtium officinale variety. As a male reader, I found the information quite useful and engaging. It covers various aspects such as planting, maintenance, and harvesting techniques. The article also includes tips on selecting the right location and soil conditions for optimal growth. I particularly appreciated the step-by-step instructions on propagating watercress from seeds. The writer’s attention to detail and clear explanations helped me understand the process better. Additionally, the article highlights the health benefits and culinary uses of watercress, which piqued my interest. Overall, this guide is an excellent resource for anyone looking to cultivate watercress and enjoy its nutritional value.

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