Description: (Eustoma grandiflorum). Featuring extra-double (actually quadruple), large 2-2¾” rose-shaped flower heads. Group 2. The popularity of the Lisianthus flower continues to grow and grow. Consumers love the ‘Rose Without Thorns’ with its elegant double and fringed flower types. Perennial in zones 8-11; grown as an annual elsewhere.
When to Grow: Lisianthus can be started 12- 14 weeks indoors before your last frost date (around December/January)
- Germination Lighting: Lightly Cover Seed
- Germination Days: 7-14 Days
- Grow on Temperature Day: 65-70°F
- Grow on Temperature Night: 55-60°F
- Plant Spread: 8-12″
- Plant Height: 30-38″
- Plant Type: Annual
- Planting Method: Transplant
Hardiness Degree: 35-40 degrees, row covers for cold snaps
Blooming Season: Early summer through fall (June-November)
Plant Habit: Upright, may need support
Characteristics: tolerant in 60-80 degree, higher temperatures with water in well drained soil
Fertilize: weekly
Height: 30-38 inches tall
Width: 8-12”
Exposure: prefers afternoon shade
Conditions: consistent moisture is key, but they don’t like wet feet
Uses: Beds & borders, pots & containers, pollinator gardens, wedding bouquets
How to Save Seeds: Wait for flowers to fade and allow seed pods to turn brown and dry. Once brown & brittle, gently shake out into a paper bag. Dry indoors for a few weeks, and store in a cool, dry container.