Nasturtium Care Guide – Why You Should Grow It In Your Yard

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Nasturtium, with its delicate, crepe-paper-like flowers and rounded, wavy leaves, is a charming addition to any garden or indoor space. Native to South America, this plant has been a favorite among gardeners for centuries, not only for its beauty but also for its ease of care and numerous benefits. In this comprehensive guide, we’ll delve into the world of Nasturtium, exploring its growing conditions, care requirements, and valuable tips to ensure your Nasturtium thrives.

Why Everyone Should Grow Nasturiums – Nasturiums Are Edible & Nutritious

• Leaves, flowers, and seeds are all edible with a peppery, slightly spicy flavor (like watercress).
• Rich in vitamin C, iron, and antioxidants, they add a nutritional boost to salads, sandwiches, and garnishes.
• The seeds can be pickled as a “poor man’s capers.”

Nasturtium Care

Soil

Nasturtium prefers well-draining soil that is rich in organic matter. A mix specifically designed for flowering plants, with a slightly acidic to neutral pH (around 6.0-7.0), is ideal. Avoid using regular potting soil, as it can retain too much water and lead to root rot. For a DIY mix, combine compost, peat moss, and perlite or vermiculite to achieve the right balance of nutrients and drainage.

Light

Nasturtium loves full sun to partial shade, making it versatile for various garden spots. Direct sunlight for at least 4-6 hours a day promotes healthy growth and abundant flowering. However, in warmer climates, some afternoon shade can prevent scorching of the leaves.

Watering

Water your Nasturtium regularly, but ensure the soil isn’t waterlogged. The soil should be moist but not soggy. Overwatering can lead to root rot, while underwatering may cause the plant to become leggy. Water at the base of the plant to avoid getting the leaves wet, which can lead to fungal diseases.

Temperature

Nasturtium thrives in temperatures between 60°F (15°C) and 75°F (24°C). It’s sensitive to frost, so in cooler climates, it’s best grown as an annual or brought indoors during winter. Avoid placing it near drafts or extreme temperature fluctuations.

Humidity

While Nasturtium can adapt to average humidity levels, it prefers a slightly humid environment, around 50-60%. To maintain humidity, you can place the pot on a tray filled with water and pebbles or use a humidifier.

Fertilizer

Feed your Nasturtium with a balanced, water-soluble fertilizer once a month. Dilute the fertilizer to half the recommended strength to avoid burning the roots. Organic fertilizers like compost tea or fish emulsion are also excellent choices.

Growth

Nasturtium can grow quite large, up to 12 inches tall and 18 inches wide, so provide it with enough space. It’s a fast grower and can spread quickly. Regular pruning can help maintain its shape and encourage more blooms.

Potting & Repotting

Use a container that is at least 6-8 inches deep to accommodate the plant’s deep taproot. Repot your Nasturtium every spring, using a slightly larger pot and fresh, well-draining soil. This will give the roots room to grow and refresh the soil’s nutrient supply.

Pruning

Prune your Nasturtium regularly to keep it bushy and promote flowering. Remove any leggy stems, and trim back overgrown areas. After the plant finishes blooming, you can cut it back to about half its size to encourage new growth.

Propagation

Nasturtium is easily propagated through seeds or division. Sow seeds directly in the ground in the spring after the last frost, about 1 inch deep and 12 inches apart. For division, carefully separate the roots of a mature plant in the spring, making sure each section has at least one growing eye.

Identify Nasturtium Pests and Diseases

• Aphids and Whiteflies: These pests can be controlled with neem oil or insecticidal soap.
• Root Rot: Caused by overwatering, treat by reducing water and improving drainage.
• Leaf Spot: Fungal disease that can be managed with fungicides and improved air circulation.

Tips to Grow Nasturtium Problem-Free

• Use a trellis or other support for climbing varieties.
• Mulch around the base to retain moisture and suppress weeds.
• Avoid overwatering, especially in cool weather.
• Deadhead regularly to encourage more blooms.

Frequently Asked Questions

Is Nasturtium edible?

Nasturtium flowers, leaves, and stems are edible and can be used in salads, as garnishes, or in sandwiches.

Can Nasturtium be grown indoors?

Nasturtium can thrive in containers indoors, provided it receives sufficient light and care.

Is Nasturtium a perennial?

In warmer climates (USDA zones 9-11), Nasturtium can be perennial. In cooler areas, it’s often grown as an annual.

Conclusion

Nasturtium, with its vibrant flowers and delicate foliage, is a delightful addition to any garden or indoor space. By following the care guidelines and tips outlined in this guide, you’ll be well on your way to growing healthy, thriving Nasturtium plants.

Whether you’re a seasoned gardener or just starting out, Nasturtium’s ease of care and rapid growth make it an excellent choice for anyone looking to add a touch of beauty and whimsy to their surroundings. So, go ahead and give Nasturtium a try, and enjoy the beauty and benefits it brings to your garden and home.