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Lisianthus

Cut Flower Care Guide

Lisianthus produces exquisite rose-like blooms that rival roses in beauty with better vase life. A premium cut flower that commands top prices at market. Slow to start but worth the wait.

🌱 Planting Guide

When to Plant Start indoors 12-16 weeks before last frost (January/February). Very slow germination.

Planting Depth Surface sow — seeds need light to germinate. Do not cover.

Spacing 6-9 inches. Use support netting.

Soil Well-drained, slightly alkaline. pH 6.5-7.0

Sunlight Full sun (6+ hours). Afternoon shade in hot climates.

💡 Tips

Seeds are dust-fine — use pelleted seed for easier handling
Keep at 70-75°F for germination (2-3 weeks)
Seedlings are tiny and slow — be patient through the "rosette" stage
Must not dry out as seedlings but also not stay soggy

📅 Month-by-Month Care Calendar

Jan

Start lisianthus seed NOW. Use pelleted seed, bottom heat, grow lights.

Feb

Continue monitoring tiny seedlings. Don't let them dry out.

Mar

Seedlings still tiny — this is normal. Pot up if needed.

Apr

Begin hardening off. Prepare beds with netting support.

May

Transplant after last frost. Install drip irrigation.

Jun

Plants growing. Start calcium feeding. Scout for thrips.

Jul

First blooms! Harvest when 2-3 flowers open. Premium market flower.

Aug

Peak production. Cut back for second flush.

Sep

Second flush production. Fall lisianthus is premium quality.

Oct

Continue harvesting until frost threat.

Nov

Clear plants. Note which varieties performed best.

Dec

Order seed for next year — popular varieties sell out fast!