Orange Nasturtium Growing Guide: Plant, Grow, and Care for Vibrant Edible Flowers

Learn how to plant, grow, and care for orange nasturtiums, including sunlight, soil, watering, container care, harvesting, and edible uses.

Orange nasturtiums bring glowing color, rounded green leaves, and a relaxed cottage-garden appearance to beds, borders, containers, and edible landscapes. These cheerful flowers are especially attractive spilling over the side of a window box, filling an open space in a vegetable garden, or weaving through a sunny flower bed.

Common garden nasturtiums belong to the genus Tropaeolum. The two types most often grown are trailing nasturtium, Tropaeolum majus, and compact bush nasturtium, Tropaeolum minus. Depending on the variety, the flowers may be soft apricot, golden orange, tangerine, salmon, or deep red-orange.

Nasturtiums are valued for more than their beauty. Their flowers and leaves are edible and have a fresh, peppery flavor similar to watercress or arugula. The blossoms can add vivid color to salads, appetizers, pasta, and serving platters. Their easygoing nature also makes them an inviting choice for beginning gardeners.

Are Orange Nasturtiums Annuals or Perennials?

Nasturtiums are tender perennials in warm climates, but gardeners in colder regions usually grow them as annuals. They are sensitive to frost and generally continue growing and blooming until cold weather ends the season.

In frost-free or very mild areas, nasturtiums may live longer and reseed readily. Gardeners in warm regions should monitor spreading plants and unwanted seedlings because nasturtiums can become vigorous under favorable conditions.

Choosing the Right Orange Nasturtium

Before purchasing seeds, decide whether a compact or trailing growth habit will work best in your garden.

Compact varieties form tidy mounds that are well suited to garden borders, raised beds, small spaces, and patio containers. Many remain approximately 6 to 18 inches tall, although the final size depends on the cultivar and growing conditions.

Trailing varieties produce longer stems that can spread across the ground or cascade from containers, window boxes, and retaining walls. They can also be guided onto a low support, but they do not have tendrils and may need help staying attached.

For an especially colorful planting, look for named varieties with orange, apricot, peach, tangerine, or salmon-colored flowers. Check the seed packet for the plant’s mature size and habit rather than choosing by flower color alone.

When to Plant Nasturtium Seeds

Plant nasturtium seeds outdoors after the danger of frost has passed and the soil has begun to warm. In many regions, this means sowing them in late spring. Local frost dates and soil conditions are more useful than a fixed calendar date.

Seeds can also be started indoors approximately four to six weeks before the expected final spring frost. Nasturtiums can be sensitive to root disturbance, so plantable paper or fiber pots may make it easier to move seedlings into the garden without disrupting their roots.

Direct sowing is often the simplest option. The large seeds are easy to handle, and seedlings may emerge in approximately 7 to 10 days when temperature and moisture conditions are favorable. The University of Wisconsin recommends sowing seeds about ½ inch deep and placing plants approximately 10 to 12 inches apart, although spacing should also be adjusted for the selected variety. University of Wisconsin Horticulture

Selecting the Best Location

Nasturtiums generally flower best in full sun. A location receiving at least six hours of direct sunlight is a helpful starting point, but climate matters. Plants growing in regions with intense summer heat may benefit from protection during the hottest part of the afternoon.

Partial shade can help reduce heat stress, but excessive shade may produce long, leafy plants with fewer blossoms. Watch how the plants respond and adjust container placement if flowering slows during extremely hot weather.

Good air circulation is also beneficial. Avoid crowding plants tightly against one another, particularly in humid conditions.

Soil and Fertilizer Requirements

Nasturtiums prefer well-drained soil and often perform beautifully without rich amendments or frequent feeding. Highly fertile soil, especially soil containing abundant nitrogen, can encourage lush leaf production at the expense of flowers.

Before planting, loosen compacted soil and correct serious drainage problems. Gardeners working with heavy clay or waterlogged ground may have better results growing nasturtiums in raised beds or containers.

Routine fertilization is usually unnecessary unless the soil is extremely poor or a plant shows a confirmed nutrient deficiency. If a nasturtium produces many healthy leaves but very few flowers, excessive fertilizer may be part of the problem.

Growing Orange Nasturtiums in Containers

Orange nasturtiums make excellent container plants. Compact varieties create full mounds of foliage and flowers, while trailing varieties soften the edges of hanging baskets, window boxes, and tall planters.

Choose a container with unobstructed drainage holes and fill it with a well-draining potting mix. Avoid using dense garden soil in containers because it may compact and hold too much water.

Container-grown nasturtiums can dry more quickly than plants growing in the ground. Check the soil regularly, especially during hot or windy weather. Water when the upper portion of the potting mix begins to feel dry, then allow excess water to drain completely.

Watering Nasturtiums

Established nasturtiums tolerate some dryness, but regular watering supports stronger flowering. Water deeply enough to moisten the root zone, then allow the soil surface to begin drying before watering again.

The goal is consistent but not saturated soil. Prolonged waterlogging can contribute to weak growth and root problems, while repeated severe wilting may reduce flowering.

Direct water toward the soil instead of routinely soaking the foliage. Watering early in the day gives splashed leaves time to dry and may help limit disease problems in humid gardens.

Encouraging More Orange Flowers

Adequate sunlight, restrained fertilizer use, and regular moisture are the foundations of abundant nasturtium flowers. Harvesting blossoms or removing faded flowers can encourage the plant to continue producing buds rather than directing all its energy toward seed development.

If a healthy plant has abundant foliage but few flowers, check its light and fertilizer conditions. Moving a container to a sunnier position or stopping unnecessary feeding may improve flower production.

Very hot summer weather can temporarily slow growth or flowering. Plants may recover and begin blooming more vigorously when temperatures moderate.

Common Nasturtium Problems

Nasturtiums are generally easy to maintain, but aphids, imported cabbageworm caterpillars, and leafminers may occasionally appear. Leafminers create pale, winding trails inside the leaves. These marks can be unattractive, although minor damage may not seriously affect the plant.

Inspect leaves regularly, including their undersides. Small pest populations may be removed by hand or dislodged with water. Before using any treatment, confirm the pest’s identity and choose a product labeled for the plant and intended use.

This distinction is particularly important when the flowers or leaves will be eaten. Follow every label instruction, observe the required interval between application and harvest, and never assume that a product is safe for edible plants simply because it is described as natural.

Harvesting Edible Nasturtium Flowers and Leaves

Correct identification is essential before eating any garden flower. Purchase seeds or plants labeled with the proper botanical name, such as Tropaeolum majus, and avoid confusing garden nasturtiums with unrelated plants.

Harvest young, healthy flowers and leaves from plants that have not been treated with products unsuitable for edible crops. The leaves have a peppery flavor, while the flowers are usually somewhat milder. Plants growing in sunnier, hotter conditions may develop a stronger taste.

Pick blossoms on the day they will be served when possible. Gently rinse them with clean water, inspect them for insects, and allow them to dry. Introduce edible flowers gradually and in small amounts, especially when serving them for the first time. The University of Minnesota also recommends using only correctly identified flowers that have not been exposed to harmful chemicals. University of Minnesota Extension

Ways to Use Orange Nasturtium Flowers

Fresh orange nasturtium blossoms make a striking garnish for green salads, grain bowls, pasta, vegetable platters, soups, and savory appetizers. Their peppery character pairs particularly well with cucumbers, tomatoes, tender greens, fresh herbs, soft cheeses, citrus, and vinaigrettes.

Whole blossoms provide the strongest visual impact, while separated petals can scatter color more delicately across a dish. Add the flowers shortly before serving so they retain their fresh texture and vibrant appearance.

Young leaves can also be added sparingly to salads or used as a colorful alternative to other peppery greens. Taste a leaf before using a larger amount because flavor intensity can vary with plant age and growing conditions.

Collecting Nasturtium Seeds

Allow a few flowers to remain on the plant if you want to collect seeds. After flowering, nasturtiums develop distinctive segmented seed structures. Wait until mature seeds begin to dry, then collect them before they fall or are damaged by wet weather.

Allow saved seeds to dry thoroughly in a protected, well-ventilated location. Store them in a labeled paper envelope in a cool, dry place. Seeds collected from hybrids may produce plants that differ from the parent, so saved seed does not always preserve the exact flower color or growth habit.

Designing a Garden With Orange Nasturtiums

Orange nasturtiums create a warm, energetic accent among blue, purple, white, and soft yellow flowers. Their rounded foliage contrasts beautifully with fine-textured herbs, upright ornamental grasses, and plants with narrow leaves.

Compact plants can edge a kitchen garden or soften the corners of a raised bed. Trailing varieties are effective in hanging baskets, window boxes, and containers where their stems can spill naturally over the sides.

In an edible landscape, place nasturtiums where flowers can be harvested easily and where the plants will not be exposed to unsuitable lawn or ornamental-garden treatments. Their combination of color, texture, and culinary potential makes them one of the most versatile flowers for a sunny home garden.

A Bright and Flavorful Garden Favorite

Orange nasturtiums reward gardeners with brilliant flowers, attractive foliage, and an unexpectedly peppery flavor. They grow readily from seed, require little fertilizer, and adapt well to beds, borders, raised gardens, and containers.

Choose the right variety for the available space, provide well-drained soil and sufficient sunlight, water consistently without saturating the roots, and harvest faded or fresh blossoms regularly. With these simple practices, orange nasturtiums can fill the garden with vivid color from late spring until frost.

Bright orange nasturtium flower blooming among round green leaves in warm garden sunlight.
A vivid orange nasturtium flower glows among lush green foliage in the sunny garden.

Originally published March 2026 Updated August 2026 Reviewed by Culibloom

Reading Time 9 min

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