Propagating Nasturtiums: A Gardener’s Guide

Propagating Nasturtiums: A Gardener’s Guide

Are you looking to add a pop of color to your garden with beautiful and easy-to-grow nasturtiums? In this comprehensive guide, we will provide you with all the information you need to successfully propagate and care for these vibrant flowers. From selecting the right planting location to nurturing your plants to bloom, this article will walk you through the step-by-step process of growing healthy and thriving nasturtiums in your garden. Whether you are a seasoned gardener or a beginner looking to enhance your green thumb, this guide is your go-to resource for all things nasturtiums.

Choosing the Right Nasturtium Variety

When it comes to propagating nasturtiums, choosing the right variety is crucial. Nasturtiums come in a variety of sizes, colors, and growth habits, so selecting the right one for your garden is important. Here are some popular varieties to consider:

Dwarf Nasturtiums

Dwarf nasturtiums are perfect for small gardens or containers. These compact plants typically grow to about 6-12 inches tall and produce an abundance of vibrant flowers. They are great for adding color to borders, edges, or hanging baskets.

Trailing Nasturtiums

Trailing nasturtiums are perfect for adding a cascading effect to your garden. These varieties have long, trailing stems that can reach up to 6 feet in length. They are ideal for planting in hanging baskets or allowing them to spill over the edges of raised beds or containers.

Variegated Nasturtiums

Variegated nasturtiums are known for their unique foliage, which features different colored patterns or markings. These varieties can add visual interest to your garden even when they are not in bloom. Variegated nasturtiums are available in a wide range of colors and patterns, making them a popular choice for gardeners looking to add a touch of whimsy to their outdoor space.

Preparing the Soil for Nasturtiums

When it comes to growing healthy and vibrant nasturtiums, preparing the soil is crucial. Nasturtiums thrive in well-draining soil that is rich in nutrients. Follow these steps to ensure your nasturtiums have the best environment to grow in.

Selecting the Location

Choose a sunny spot in your garden for planting nasturtiums. These plants love sunlight and will flourish in an area that receives at least 6-8 hours of direct sunlight per day. Avoid planting them in shady or damp areas as this can lead to poor growth and susceptibility to diseases.

Soil Preparation

Before planting your nasturtium seeds or seedlings, it’s important to prepare the soil properly. Start by loosening the soil to a depth of about 6-8 inches using a garden fork or tiller. This will help improve drainage and allow the roots to penetrate easily. Remove any weeds or rocks from the soil to prevent competition for nutrients.

Adding Compost and Fertilizer

To enrich the soil and provide essential nutrients for your nasturtiums, add a layer of compost or well-rotted manure to the soil. Mix it in thoroughly to ensure even distribution. You can also incorporate a balanced fertilizer with a higher phosphorus content to promote blooming. Follow the instructions on the fertilizer package for the correct application rate.

By following these steps to prepare the soil for nasturtiums, you’ll create an ideal growing environment for these beautiful and easy-to-care-for flowers. Enjoy the colorful blooms and tasty leaves that nasturtiums have to offer in your garden!

Planting Nasturtium Seeds

Nasturtiums are easy to grow from seeds and can be planted directly in the garden or started indoors for early blooms. Here are a few methods for planting nasturtium seeds:

Direct Sowing

Direct sowing is the simplest way to plant nasturtium seeds. Simply choose a sunny spot in your garden with well-draining soil. Sow the seeds directly into the ground after the last frost date in your area. Make sure to space the seeds about 8-12 inches apart to allow room for the plants to grow.

Starting Indoors

If you want to get a head start on the growing season, you can start nasturtium seeds indoors. Fill seed trays or pots with a good quality potting mix and plant the seeds about 1/2 inch deep. Keep the soil moist and place the trays in a warm, sunny location. Once the seedlings have developed their second set of leaves, they can be transplanted into the garden.

Transplanting Seedlings

Whether you started your nasturtium seeds indoors or purchased seedlings, it’s important to transplant them carefully. Choose a sunny spot with well-draining soil and space the seedlings about 8-12 inches apart. Gently remove the seedlings from their containers and plant them at the same depth as they were in their original pots. Water the seedlings well after transplanting to help them establish in their new location.

By following these planting methods, you can enjoy a beautiful display of nasturtiums in your garden all season long.

Caring for Nasturtium Plants

Nasturtiums are beautiful and easy-to-care-for plants that can thrive in various conditions. To ensure your nasturtium plants are healthy and vibrant, it’s essential to follow these care tips:


Nasturtium plants prefer well-draining soil, so make sure not to overwater them. Allow the top inch of soil to dry out before watering, and then water deeply to encourage deep root growth. Avoid watering the leaves to prevent fungal diseases.


Nasturtium plants are not heavy feeders, but they can benefit from a balanced fertilizer once a month during the growing season. Look for a fertilizer with a higher phosphorus content to promote flowering. Be careful not to over-fertilize, as this can lead to excessive foliage growth at the expense of flowers.

Pest and Disease Control

Nasturtium plants are generally resistant to pests and diseases, but they can still fall victim to the occasional infestation. Keep an eye out for aphids, slugs, and caterpillars, which are common nasturtium pests. You can control these pests by handpicking them or using natural remedies like neem oil or insecticidal soap.

Regularly inspect your nasturtium plants for signs of powdery mildew or other fungal diseases. To prevent these diseases, ensure good air circulation around the plants and avoid overhead watering. If you notice any signs of disease, promptly remove and dispose of affected plant parts to prevent the spread.

Harvesting Nasturtiums

When it comes to harvesting nasturtiums, it’s important to do so at the right time to ensure the best flavor and quality. The flowers and leaves of nasturtium plants are not only beautiful but also edible, making them a versatile addition to any dish.

Edible Flowers and Leaves

Nasturtium flowers have a peppery flavor that adds a unique kick to salads, sandwiches, and other dishes. The leaves are also edible and can be used in the same way as the flowers. When harvesting nasturtiums for their edible parts, be sure to wash them thoroughly before consuming.

Deadheading for Continuous Blooms

Deadheading is the process of removing spent flowers from a plant to encourage new growth and continuous blooming. For nasturtiums, deadheading is especially important to keep the plant looking tidy and to promote the production of more flowers. Simply pinch off the faded flowers to encourage new blooms throughout the growing season.

Saving Seeds for Future Planting

Nasturtium seeds are easy to save and store for future planting. Allow the seed pods to dry on the plant before harvesting them. Once the pods are dry, remove the seeds and store them in a cool, dry place until you are ready to plant them. By saving seeds from your nasturtium plants, you can continue to enjoy their vibrant blooms year after year.


In conclusion, propagating nasturtiums is a rewarding experience for any gardener looking to add a splash of color and a touch of whimsy to their garden. By following the simple steps outlined in this guide, you can easily grow your own beautiful nasturtiums from seeds or cuttings. Whether you are a seasoned gardener or just starting out, nasturtiums are a versatile and easy-to-care-for plant that will brighten up any outdoor space. So why not give it a try and see the beauty of nasturtiums bloom in your own garden?