Discover How to Grow and Care for Nasturtium Easily

How To Grow And Care For Nasturtium Efficiently
17 min reading time

If you’re looking for a beautiful and easy-to-grow plant for your garden, look no further than nasturtiums! These vibrant and versatile flowers are not only visually pleasing but also edible, making them a great addition to any garden. In this section, we’ll provide you with some tips and tricks on how to successfully grow and care for nasturtiums, including some valuable nasturtium growing tips and a comprehensive nasturtium care guide.

Key Takeaways

  • Ensure you choose the right location for planting nasturtiums, taking into consideration sunlight, soil conditions, and spacing requirements.
  • When planting nasturtium seeds, make sure to use well-draining soil and water regularly.
  • Nasturtiums require regular watering and fertilizing to maintain their growth and health.
  • Pruning and deadheading nasturtiums is essential to optimize their shape and promote blooming.
  • Nasturtiums can be overwintered in colder climates with the proper care and protection.

Choosing the Right Location for Nasturtiums

Now that you’ve decided to grow nasturtiums from seeds, it’s important to choose the right location for planting them. Nasturtiums are generally easy to care for, but they do have some specific requirements that you need to keep in mind.

First and foremost, they need plenty of sunlight; at least six hours of direct sunlight per day is ideal. If you live in a particularly hot climate, they may benefit from some shade during the hottest parts of the day.

The soil you plant them in also needs to be well-draining and fertile. Nasturtiums prefer soil that is slightly acidic, with a pH range of 6.0 to 7.0. If your soil is naturally alkaline, you can adjust it by adding some organic matter such as compost or peat moss.

When it comes to spacing, keep in mind that nasturtiums can spread out quite a bit. They need at least 12 inches of space between each plant to allow for adequate air circulation and to prevent overcrowding. If you’re growing them in pots, make sure the pots are at least 8 inches in diameter.

By keeping these best practices for nasturtium care in mind and selecting the right location for your plants, you can enjoy a bountiful harvest of these beautiful and versatile flowers.

Planting Nasturtium Seeds

Growing nasturtiums from seeds is a simple and rewarding process. Whether you are starting them indoors or outdoors, follow these tips for nurturing your nasturtium plants:

  • Prepare the seeds: Soak the seeds in water overnight to soften the hard exterior and promote faster germination.
  • Sow the seeds: Choose a sunny location with well-draining soil. Sow the seeds about an inch deep and 10 inches apart, covering them with a thin layer of soil.
  • Watering: Keep the soil moist but not waterlogged. Water regularly, especially during dry spells.
  • Thin the seedlings: Once the seedlings have grown their first set of true leaves, thin them out by removing the weaker plants. This will give the remaining plants more room to grow.
  • Transplant: If you started the seeds indoors, transplant them to their final location once they have grown a few sets of leaves.

By following these simple tips, you can ensure that your nasturtium plants have a healthy start and are ready to bloom beautifully.

Nasturtium Watering and Fertilizing

Proper watering and fertilizing are crucial to maintaining healthy nasturtium plants. Follow these simple tips for optimal care:

Frequency: Water your nasturtiums regularly, ensuring the soil remains moist but not waterlogged. During hot and dry weather, water more frequently.Amount: Nasturtiums require minimal fertilizing; in fact, too much can lead to poor flowering. Use a balanced fertilizer once per month in moderation.
Method: Water from the base of the plant to prevent wetting the leaves and causing fungal disease. Avoid overhead watering.Type: Use an all-purpose fertilizer, such as a 10-10-10 ratio, or a low-nitrogen option like bone meal. Too much nitrogen can cause excessive growth and reduced flowering.

Remember to also keep an eye on soil conditions; nasturtiums prefer well-draining soil and may suffer if overwatered. By following these watering and fertilizing tips, you can help your nasturtiums thrive and achieve their full potential.

Nasturtium Pests and Diseases

How To Grow And Care For Nasturtium: Fertilizing

Despite being relatively disease-resistant, nasturtium plants can still fall prey to a few common pests and diseases. While prevention is always the best course of action, it’s good to know how to identify and treat any issues that may arise. Here are some best practices for nasturtium care to help you keep your plants healthy:

Common Nasturtium Pests

Although nasturtiums are often touted as natural pest repellents, a few insects may still cause damage to your plants. Here are some of the most common nasturtium pests:

AphidsTiny green or black insects clustered on the leaves or stems. They may cause yellowing or wilting of the affected plant parts.Wash the leaves with a strong spray of water. You can also try applying insecticidal soap or neem oil to deter the pests.
Cabbage looperGreen caterpillars that may chew holes in the leaves or bore into the buds. You may also see their droppings on the leaves.Pick off the caterpillars and dispose of them. You can also dust the plants with Bacillus thuringiensis (Bt) or spinosad to control the pests.
WhitefliesTiny white insects that fly off in a cloud when disturbed. They may cause yellowing or stunted growth of the plants.Hang sticky traps around the plants to catch the whiteflies. You can also use insecticidal soap or neem oil to kill the pests.

Common Nasturtium Diseases

Nasturtiums are generally resistant to most plant diseases, but they may still develop a few issues. Here are some of the most common nasturtium diseases:

  • Leaf spot: This fungal disease causes brown or black spots on the leaves. It may also cause defoliation if left untreated.
  • Rust: This fungal disease causes orange or brown spots on the leaves, stems, or flowers. It may also cause premature drop of the affected plant parts.
  • Mildew: This fungal disease causes a white or gray powdery coating on the leaves or stems. It may also cause distortion or stunted growth of the plants.

To prevent and treat these diseases, make sure to keep your plants well-spaced and watered at the base. Avoid overhead watering and remove any affected plant parts promptly. You can also apply a copper-based fungicide according to the manufacturer’s instructions.

Nasturtium Pruning and Deadheading

To maintain healthy nasturtium plants, pruning and deadheading are crucial. Regular pruning of the leaves and stems promotes air circulation, which prevents the growth of fungi and other diseases. Deadheading, the process of removing spent flowers, also encourages the plant to produce more blooms.

To prune nasturtiums, wait until the plant is at least six inches tall. Then, use clean, sharp pruning shears to cut back any dead or damaged leaves and stems. Be careful not to cut off too much, as this can damage the plant.

Deadheading can be done as soon as the flowers fade and wilt. Use your fingers or snips to remove the entire flower and its stem. This will prevent the plant from using valuable energy to produce seeds and instead encourage the growth of new flowers.

Regularly pruning and deadheading will keep your nasturtiums healthy and blooming all season long. Follow these tips for nurturing your plants, and you’ll be rewarded with a beautiful and vibrant garden.

Nasturtium Trellising and Support

When it comes to growing nasturtiums, trellising and support can be incredibly helpful for maximizing the growth potential of these beautiful plants. Best practices for nasturtium care dictate that providing plants with the right support structure ensures they grow vertically, revealing their gorgeous foliage and flowers to full effect.

One of the easiest ways to support nasturtiums is by installing a trellis. This vertical structure made of wood or metal provides a framework for the plants to grow up against. To use a trellis, simply plant the nasturtiums at the base and then train them to climb the structure as they grow. As they reach the trellis, guide the stems gently to keep them upright and prevent breakage.

If you don’t have access to a trellis, there are other ways to support your nasturtium plants. One option is to use stakes and twine to create a simple support structure. To do this, drive a stake into the ground next to the plant and then tie a piece of twine to the stake. Gently wrap the twine around the plant stem and tie it in place, being careful not to damage the stem or foliage.

It’s important to note that nasturtiums typically grow quite quickly and can become top-heavy if not properly supported. By providing them the right structure, you can ensure that they continue to grow healthy and strong throughout the season.

Harvesting Nasturtium Flowers and Leaves

Harvesting nasturtium plants is a delightful activity, but it’s important to do it at the right time to ensure peak flavor and freshness. Here are some expert tips for cultivating nasturtium plants:

  • Timing: Nasturtium flowers and leaves can be harvested at any time during the growing season. However, for the best flavor and fragrance, it’s recommended to harvest them in the morning when the dew has dried, but before the sun gets too hot.
  • Method: Use clean, sharp scissors or pruning shears to cut the stems of nasturtium flowers or leaves. Cut the stem close to the base of the plant, but be sure not to damage the adjacent leaves or flowers.
  • Storage: Nasturtium flowers and leaves can be stored in an airtight container in the refrigerator for up to a week. Alternatively, you can preserve them by drying them in a cool, dry place away from direct sunlight.
  • Culinary Uses: Nasturtium flowers and leaves have a peppery, slightly sweet flavor that makes them an excellent addition to salads, sandwiches, and other dishes. They can also be used to make a flavorful herbal tea or a vinegar infusion.

With these tips, you can enjoy the delicious flavor and versatility of nasturtiums in your favorite recipes. Happy harvesting!

Overwintering Nasturtiums

How To Grow And Care For Nasturtium: Overwintering

If you live in a region with harsh winters, it’s essential to take measures to protect your nasturtium plants from frost and freezing temperatures. With the right care, you can ensure that your plants survive the winter and thrive again in the spring.

One important step in overwintering nasturtiums is to cut back the foliage after the first frost. This will help prevent disease and pests from overwintering in the plant’s remains.

Another key consideration is to provide a protective covering for the plants. You can use a layer of mulch, straw, or other organic material to insulate them from the cold. Alternatively, you can cover them with a frost blanket or fabric cover to shield them from freezing temperatures.

It’s also important to reduce watering frequency and volume during the winter months. While the soil should not dry out completely, the plants require less moisture during the dormant period to avoid root rot or fungal diseases.

In the spring, remove the protective covering and prune any dead or damaged branches. Resume normal watering and fertilizing schedules and watch as your nasturtium plants come back to life with renewed vigor and beauty.

By following these tips for maintaining healthy nasturtiums during the winter months, you can enjoy their vibrant colors and delicious flavors year after year.

Propagating Nasturtium Plants

Nasturtiums are easy to propagate, and you can grow them from seed, stem cuttings, or division. Whichever method you choose, make sure to follow these tips for the best results.

Growing Nasturtiums from Seeds

To grow nasturtiums from seeds, start by preparing the soil. It should be loose, well-drained, and enriched with compost or organic matter. Sow the seeds directly into the soil after the last frost date in your area. Make sure to space them about 10-12 inches apart and cover them with a thin layer of soil.

Water the seeds gently and keep the soil moist until the seeds germinate in 7-10 days. Once the seedlings have two sets of leaves, thin them out, leaving the strongest ones spaced at least 12 inches apart. Fertilize them once a month with a balanced fertilizer, and water them deeply once a week or as needed.

Tips for Nurturing Nasturtium Plants

If you want to propagate nasturtiums from stem cuttings, choose a healthy, non-flowering stem and cut it just below a node. Remove the lower leaves and dip the cut end into rooting hormone. Plant it in a pot with well-draining soil and place it in a bright, warm location. Keep the soil moist and mist the leaves regularly. In a few weeks, the cutting should take root and develop new leaves.

Another way to propagate nasturtiums is by division. Dig up an established plant in early spring or fall and separate it into smaller clumps with a sharp knife or shovel. Replant each clump in a new spot and water it well. This method is ideal for rejuvenating old or overgrown nasturtiums.

Whichever method you choose, remember to give your nasturtiums plenty of sun, water, and good soil. With proper care, they will reward you with a profusion of colorful blooms and leaves.

Troubleshooting Common Nasturtium Problems

Despite your best efforts, sometimes nasturtium plants can encounter problems. Here are some common nasturtium problems you may come across, and best practices for nasturtium care to help you overcome them:

Yellowing Leaves

If you notice yellowing leaves on your nasturtium plant, it may be an indication of overwatering. Try reducing the amount of water you give your plant and allow the soil to dry out slightly before watering again. If the yellowing persists, consider adjusting the amount of sunlight the plant is receiving.

Poor Flowering

If your nasturtium plant is not producing many flowers, it may be due to a lack of nutrients. Try fertilizing your plants more regularly with a balanced fertilizer. Also, ensure that the plant is receiving adequate sunlight and that it is not too crowded or competing for resources with other plants.


Wilting is often caused by underwatering, so ensure that your nasturtium plant is getting enough water. However, if the soil is consistently moist and the plant is still wilting, it may be suffering from a fungal disease. Consider improving air circulation around the plant by pruning surrounding foliage and using a natural fungicide to treat the plant.


Nasturtiums are beautiful and easy-to-grow plants that can provide a splash of color to any garden. By following the tips and techniques covered in this article, you can grow and care for your own thriving nasturtium plants. Remember to choose the right location for planting, provide adequate water and fertilizer, and take steps to prevent common pests and diseases.

Don’t forget to harvest the flowers and leaves for culinary use or for saving seeds. And if you live in a colder climate, take precautions to overwinter your nasturtiums.

With a little bit of care and attention, your nasturtium plants will thrive and provide beautiful blooms all season long. So get started today and enjoy the many benefits of growing these gorgeous flowers!


How do I grow and care for nasturtium plants?

To grow and care for nasturtium plants, you will need to select the right location, plant the seeds properly, provide adequate water and fertilizer, address pests and diseases, prune and deadhead the plants, provide trellising and support if desired, harvest the flowers and leaves, and protect them during colder months. For more detailed information, please refer to the relevant sections in this article.

What factors should I consider when choosing a location for my nasturtiums?

When choosing a location for nasturtiums, consider factors such as sunlight, soil conditions, and spacing requirements. Nasturtiums thrive in full sun or partial shade and prefer well-drained soil. They can be planted in containers or directly in the ground, but ensure there is enough space between plants for proper growth.

How do I plant nasturtium seeds?

To plant nasturtium seeds, prepare the seeds by soaking them overnight in water. Sow the seeds directly into the soil, making sure to plant them at the proper depth. Keep the soil moist but not waterlogged, and germination should occur within 7-10 days. For more detailed instructions, please refer to the relevant section in this article.

How often should I water and fertilize my nasturtium plants?

Nasturtium plants require regular watering to keep the soil moist but not waterlogged. Water them deeply once or twice a week, depending on the weather conditions. When it comes to fertilizing, a balanced liquid fertilizer can be applied every 4-6 weeks during the growing season to promote healthy growth and blooming.

What pests and diseases should I watch out for when growing nasturtiums?

Nasturtium plants can be susceptible to pests such as aphids, caterpillars, and whiteflies. They may also be affected by diseases like powdery mildew and rust. To prevent and address these issues, practice good garden hygiene, use natural remedies when possible, and regularly inspect the plants for any signs of infestation or disease.

Why is pruning and deadheading important for nasturtium plants?

Pruning and deadheading nasturtium plants help maintain their shape, promote blooming, and prevent them from becoming leggy or overcrowded. Prune back any dead or damaged foliage, and remove spent flowers to encourage continuous blooming throughout the season.

Should I use trellises or support structures for growing nasturtiums?

Using trellises or support structures for growing nasturtiums vertically can help maximize their growth potential and create a visually appealing display. By training the plants to climb, you can save space in your garden and showcase their vibrant blooms. Choose a sturdy support system and gently guide the vines as they grow.

When and how should I harvest nasturtium flowers and leaves?

Nasturtium flowers and leaves can be harvested when they are fully grown and vibrant in color. Simply pluck them from the plant, ensuring not to damage any surrounding foliage. The flowers and leaves can be used fresh in salads, as a garnish, or even pickled. If you wish to save seeds for future planting, allow the flowers to mature and dry on the plant before collecting them.

How can I overwinter my nasturtiums in colder climates?

In colder climates, nasturtium plants are typically treated as annuals and replanted each year. However, if you want to overwinter them, you can try covering the plants with mulch or straw to protect them from frost. Alternatively, you can dig up the plants and store them in a cool, dark place until spring. Just remember to provide them with occasional moisture to keep them from drying out.

What are the various methods of propagating nasturtium plants?

Nasturtium plants can be propagated through methods such as seed saving, stem cuttings, and division. By saving seeds from mature flowers, you can grow new plants the following year. Stem cuttings can be taken from healthy plants and rooted in water or soil. Division involves separating the plant into smaller sections, each with its own roots, and planting them individually.

How can I troubleshoot common problems with my nasturtium plants?

Common problems when growing nasturtiums include yellowing leaves, poor flowering, and wilting. To troubleshoot these issues, ensure proper watering, address nutrient deficiencies, inspect for pests and diseases, and make any necessary adjustments to environmental conditions. For more specific troubleshooting tips, please refer to the relevant section in this article.

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