How to Grow Anemones for Beautiful, Long-Lasting Blooms Every Year

Anemones, often referred to as windflowers, are cherished for their simple yet striking beauty and are frequently compared to poppies. Despite their delicate appearance, these charming flowers are resilient perennials that thrive year after year in USDA growing zones 4 to 9.

Anemones are popular for garden borders, containers, and cut gardens. They bloom in a stunning range of colors, adding vibrancy to partially shaded areas. These carefree flowers are easy to grow, resistant to deer and rabbits, and come in both spring-, summer-, and fall-blooming varieties to suit every gardener’s needs.

Ahead, flower experts share their top tips for cultivating these enchanting flowers, ensuring successful planting, harvesting, and care.

When to Plant

When you plant anemones depends largely on your growing zone and the variety you're planting, but generally, these plants need cool weather to do their best work, says Rachael Kemery, founder of Rising Iris Farm. In mild climates, it’s best to plant in the fall. This allows the corms to settle in over the winter and sprout earlier in the spring. In colder regions where the ground freezes solid, it’s safer to plant in early spring, as soon as the soil is workable. The timing of your planting can significantly impact your success in growing. "Anemones planted in soil that is warming often struggle. Plant them while the season is still cool, and they'll reward you," says Kemery.

How to Plant

Anemones are generally cultivated from corms, which look like hard, shriveled acorns and serve a similar purpose as tubers. Planting corms allows you to ensure that the colors and characteristics of the blooms match those of the parent plants. Prior to planting, soaking the corms is crucial as it helps them rehydrate and break out of their dry, dormant state.

Soak the Corms

Begin by soaking the corms in room-temperature water for three to four hours before planting. The corms will be dry and somewhat shriveled before soaking, and this process helps to awaken them and accelerate root development, Kemery notes. You will know the corms are ready when they are plump and have nearly doubled in size. Do not over-soak the corms, as this can lead to rot.

Plant Immediately

Once the corms are plump, they must be planted in soil. At this point, you can plant them directly into the ground. Kemery recommends planting the corms in well-draining soil in full sun or partial shade, about 1 to 2 inches deep. "If you can't tell which side of the corm faces up, don't worry too much about it. They'll sort themselves out underground," says Kemery.

Water Thoroughly

After planting, water the soil thoroughly and keep it evenly moist while they establish. "From there, anemones require minimal maintenance," says Kemery.

Care Requirements

A little care goes a long way. Anemones are known for being easy to grow, low-maintenance, and quite resilient. When conditions are optimal, the cultivation process becomes even simpler.

Sunlight

Anemones typically need full sun to partial shade, requiring four to six hours of sunlight each day for optimal blooming. Although they thrive in bright conditions, they benefit from afternoon shade.

Soil

This charming flower thrives in loose, well-draining soil that is rich in organic matter, such as compost or leaf mold, and prefers a slightly acidic to neutral pH for optimal growth.

Water

When actively growing in the warmer season, anemones require about 1 inch of water per week. It's important to keep the soil moist but not soggy, as they are prone to root rot. Ensure excellent drainage by avoiding planting in low-lying areas.

Temperature

Anemones thrive best outdoors in cool, temperate conditions, with daytime temperatures ranging between 58 and 65 degrees Fahrenheit. They are sensitive to extreme heat and typically go dormant when outdoor temperatures consistently exceed 70 to 78 degrees Fahrenheit. Planting anemones in areas that receive afternoon shade can help keep them cooler during the warmer months.

Fertilizer

Although anemones aren't considered heavy feeders, they do benefit from additional nutrients in early spring and again in mid-summer or early fall. To support their root development and promote vibrant blooms, choose a balanced, slow-release fertilizer, such as bone meal or phosphorus-rich amendments.

Best Varieties to Grow

There are a variety of anemones, but Kemery highlights the ones she grows each year, particularly for their large blooms and strong stems. "What I love most about anemones is how alive they look; the petals have a slightly luminous quality, and when you plant them in drifts, they feel both delicate and bold at the same time," she shares.

For Cut Flowers

For cut flowers, Kemery recommends Italian-bred strains, especially the "Mistral," "Mistral Rarity," and "Galilee" series. "These varieties produce strong stems and large, vivid blooms in a range of colors, from soft blush and lavender to deep burgundy and striking black-centered whites," says Kemery. She emphasizes that they are bred for performance, and it is evident in their quality. "If you can't find them locally, they are definitely worth seeking out from a reputable online bulb supplier," she says.

For the Garden

If you want to enjoy the beauty of anemones in a border garden without cutting, Kemery recommends the classic single varieties. "'Mr. Fokker' in deep violet-blue, 'The Bride' in pristine white, and 'Hollandia' with its striking red petals and dark center are all dependable choices," she says. "Their timeless simplicity adds a refreshing charm to any spring garden."

How to Harvest Anemone

The best time to harvest anemones is when the flower is facing upward, and the distance between the green collar and the bud is small—ideally between a 1/4- and 1/2-inch, says Emily Scott, owner of Scott Farm in Maine. If you harvest when the collar is still touching the flower head, the bud may never open. Conversely, if the flower is fully open and shedding pollen, its vase life will be shorter.

To harvest, avoid using scissors as this can crush the stem and hinder water uptake. Instead, use sharp clippers or a knife. Cut the stem as close as possible to the base to maximize length, says Scott. When making cuts, be careful not to damage or cut new growth, which are the small emerging buds and new stems that form at the base of the plant. After harvesting, immediately put the flowers in cool water, using only 2 to 4 inches. Using more water can make the stems mushy.

Common Problems

Anemones are easy to grow, but they are prone to a few issues.

Stem Rot and Fungal Diseases

Anemones are susceptible to stem rot, botrytis, and various fungal diseases, particularly in humid or wet conditions. Applying a preventive fungicide treatment, such as neem oil or copper-based fungicides, during the growing season can help mitigate fungal issues.

Split Stems

Stem splitting can occur due to calcium deficiencies or inconsistent watering, which leaves stems weak and prone to collapse. To prevent this, incorporate calcium amendments into your soil and maintain consistent irrigation to avoid sudden fluctuations in moisture.

Common Pests

Thrips, aphids, earwigs, whiteflies, beetles, and slugs commonly infest anemones. Regular applications of neem oil, beneficial nematodes, and crop rotations offer organic solutions to manage pests and reduce pressure on plant health.