Lisianthus / Eustoma Grandiflorum Seeds - Thornless Rose
Lisianthus / Eustoma Grandiflorum Seeds - Thornless Rose
Lisianthus / Eustoma Grandiflorum Seeds - Thornless Rose
Lisianthus / Eustoma Grandiflorum Seeds - Thornless Rose
Lisianthus / Eustoma Grandiflorum Seeds - Thornless Rose
Lisianthus / Eustoma Grandiflorum Seeds - Thornless Rose
Lisianthus / Eustoma Grandiflorum Seeds - Thornless Rose
Lisianthus / Eustoma Grandiflorum Seeds - Thornless Rose
Lisianthus / Eustoma Grandiflorum Seeds - Thornless Rose
Lisianthus / Eustoma Grandiflorum Seeds - Thornless Rose
Lisianthus / Eustoma Grandiflorum Seeds - Thornless Rose
Lisianthus / Eustoma Grandiflorum Seeds - Thornless Rose
Lisianthus / Eustoma Grandiflorum Seeds - Thornless Rose
Lisianthus / Eustoma Grandiflorum Seeds - Thornless Rose
Lisianthus / Eustoma Grandiflorum Seeds - Thornless Rose
Lisianthus / Eustoma Grandiflorum Seeds - Thornless Rose

Lisianthus / Eustoma Grandiflorum Seeds - Thornless Rose

Zones 2, 3, 4, 5, 6, 7, 8, 9, 10 - Deer Resistant
Color — Purple
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For gardeners who love the look of roses and ranunculus blooms, we have another gorgeous option: lisianthus flowers. The darling of the floral industry, lisianthus are cherished for their soft, elegant colors displayed on wispy, delicate petals. Often seen in bridal and summer bouquets, lisianthus are celebrated for their resemblance to roses, but enjoy a longer vase life.

Lisianthus are tender perennials that are often grown as annuals in cooler climates. Gardeners in frost-free climates can expect to see their lisianthus come back year after year.

Planting Lisianthus Seeds

When to Plant Lisianthus Seeds

Lisianthus seeds can be started indoors in early spring, 8 to 10 weeks before the last frost date. Plant the seeds in seed trays, burying them at a depth of ⅛ inch and spacing them two to three inches apart for optimal growth. Cover the trays with plastic wrap or a clear lid to maintain moisture and warmth. Position the trays in a warm area, ideally on top of a heat mat, with temperatures ranging from 70-75°F to aid in germination. Ensure the soil remains consistently moist but not waterlogged. Germination typically occurs within two to three weeks. Once seedlings emerge, monitor temperatures to prevent exceeding 75°F.

Where to Plant Lisianthus Seeds

Begin by prepping your soil. Lisianthus thrives in well-draining, fertile soil with a slightly acidic pH of 6.0 to 7.5. Enrich the soil with compost or well-rotted manure before planting to boost organic matter content. Ensure the soil remains moist but not waterlogged, as lisianthus doesn't tolerate overly wet conditions.

For optimal growth, plant lisianthus in full sun, although they can tolerate some light shade during the hottest parts of the day.

How to Care for Lisianthus Seeds

To ensure healthy growth, keep the soil consistently moist, but avoid overwatering. Deeply water the plants from beneath once a week, increasing frequency during hot, dry spells. Apply a balanced fertilizer every two to three weeks during the growing season to promote vigorous growth.

While lisianthus plants are generally resilient to pests and diseases, they can be vulnerable to fungal infections in humid conditions. To prevent fungal issues and maintain plant health, refrain from overhead watering and ensure good air circulation by removing weeds.

For optimal flower production, harvest lisianthus blooms early in the day when the first buds begin to open. Cut the stems just above the basal foliage and remove any leaves that will be submerged in water in the vase. With proper care, lisianthus flowers can last up to two weeks in a vase.

Growing lisianthus from seeds requires patience and attention, but the process can be highly rewarding. By following these guidelines, you can successfully cultivate lisianthus plants from seed and enjoy their exquisite blooms throughout the growing season.

How to Plant Lisianthus Seeds

Once your lisianthus seedlings reach around four inches tall and have developed two sets of true leaves, start hardening them off gradually by exposing them to outdoor conditions for longer periods each day. Once all risk of frost has passed, transplant the hardened-off seedlings into larger pots or directly into the garden.

When transplanting, handle the seedlings with care to avoid damaging their delicate roots. Plant them at the same depth they were growing in their seedling pots. In the garden, space the seedlings approximately 12 inches apart to prevent overcrowding, which can lead to disease.

Understanding Lisianthus Groups

Lisianthus's growth and flowering are intricately linked to light and heat, shaping its blooming timeline and environmental preferences. Lisianthus plants are categorized into three groups based on their response to light and heat conditions, each with its own ideal growing environment.

Group 1 Lisianthus plants bloom earliest under moderate light and heat, making them well-suited for early high tunnel production. High tunnels provide partial protection from the elements, enabling growers to extend the growing season and harvest crops earlier. Group 1 Lisianthus thrives in these conditions, blooming ahead of other groups.

Group 2 Lisianthus blooms during summer, requiring higher light and heat levels. These plants are best suited for field production in warm weather conditions. Field production involves cultivating crops directly in the open air, without the controlled environment of a greenhouse. Group 2 Lisianthus is recommended for both high tunnel and field production due to its ability to thrive in these environments.

Group 3 Lisianthus flowers later than the other groups and prefers moderate light and heat levels. Suitable for high tunnel and field production, Group 3 Lisianthus blooms later in the season, making it ideal for extending the growing season into the fall. Growers looking to prolong their harvest into the autumn months may opt for Group 3 Lisianthus for late-season production.