Lisianthus

Eustoma grandiflorum

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verifiedReviewed by the GreenScout Team

Lisianthus is an elegant flowering plant prized for its large, ruffled blooms that resemble roses or peonies, available in white, pink, purple, and bi-colors. Native to warm regions, it requires consistently warm temperatures and careful watering to thrive. These long-lasting flowers are popular in both gardens and floral arrangements.

Common Problems

Select the problem your Lisianthus is experiencing to get a treatment guide.

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Yellow Leaveschevron_right

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Root Rotchevron_right

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Wiltingchevron_right

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Slow Growthchevron_right

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Brown Tipschevron_right

Care Guide

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Light

Bright, indirect light for 14–16 hours daily; avoid direct afternoon sun which can scorch petals.

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Water

Keep soil consistently moist but not waterlogged; water when the top inch feels dry. Avoid wetting foliage to prevent fungal issues.

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Soil

Use well-draining, fertile potting mix enriched with organic matter; pH 6.0–7.0.

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Fertiliser

Feed every 2 weeks during growing season with balanced, water-soluble fertilizer (10–10–10) or one higher in phosphorus to promote flowering.

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Temperature

Maintain 65–75°F (18–24°C) during day; nighttime temperatures of 50–60°F (10–15°C) improve flower quality.

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Humidity

Prefer 50–70% humidity; mist foliage lightly in morning or use a humidifier, avoiding wet leaves.

Toxicity

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Non-toxic to cats, dogs, and children; safe for all households.

Common Diseases

filter_dramaRoot Rotchevron_right spaPowdery Mildewchevron_right spaBotrytis Blightchevron_right

Common Pests

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Seasonal Care

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Resume regular watering and feeding as growth picks up.

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Peak growing season. Water and feed regularly.

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Reduce watering as growth slows. Stop heavy feeding.

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Minimal watering and feeding. Protect from frost if needed.

Frequently Asked Questions

Why do Lisianthus flowers look like roses or peonies?

Its large, ruffled blooms are prized specifically for that rose- or peony-like appearance, which combined with their long vase life makes them popular in both gardens and floral arrangements.

Why is my Lisianthus so sensitive to watering?

It needs consistently moist but never waterlogged soil and dislikes wet foliage — water at the base to prevent fungal issues like root rot and botrytis blight.