Diascia

Diascia barberae

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verifiedReviewed by the GreenScout Team

Diascia is a charming tender perennial from South Africa, valued for its delicate, snapdragon-like flowers in coral, pink, salmon, and apricot tones. These low-growing, trailing plants reach 6–12 inches tall and spread generously, making them ideal for rock gardens, containers, and hanging baskets. They flower prolifically in cool to moderate temperatures and attract bees and butterflies to the garden.

Common Problems

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

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Pale Leaveschevron_right

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Slow Growthchevron_right

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Leggy Growthchevron_right

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Underwateringchevron_right

Care Guide

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Light

Full sun to partial shade; performs best with 5–6 hours of daily sunlight

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Water

Keep soil consistently moist during growing season; reduce watering in winter dormancy

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Soil

Well-draining soil or potting mix with compost; prefers slightly acidic conditions

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Fertiliser

Apply balanced fertilizer monthly during active growth; reduce in winter

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Temperature

Prefers cool to moderate temperatures between 50–70°F; sensitive to extreme heat

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Humidity

Moderate humidity; provide adequate ventilation to minimize fungal infection

Toxicity

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Completely non-toxic; safe for all household members

Common Diseases

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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

Is Diascia good for hanging baskets and rock gardens?

Yes — its low-growing, trailing habit spreads generously, making it ideal for rock gardens, containers, and hanging baskets where it can cascade over the edges.

Why does my Diascia stop flowering in summer heat?

It flowers prolifically in cool to moderate temperatures, so intense summer heat can slow or halt blooming — it performs best where summers stay mild.