Watsonia
Watsonia borbonica
outdoorWatsonia is a striking South African perennial producing tall spikes of vibrant red, pink, or orange flowers that bloom in late spring to early summer. These corm-forming plants are excellent for borders and cut flowers, thriving in well-drained soil and full sun. They are frost-hardy in many climates and naturalize well once established.
Common Problems
Select the problem your Watsonia is experiencing to get a treatment guide.
Care Guide
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Light
Full sun (6+ hours direct sunlight daily)
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Water
Moderate during growing season; reduce after flowering. Allow soil to dry between waterings in dormancy.
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Soil
Well-draining soil; add sand or grit to heavy clay. pH neutral to slightly acidic.
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Fertiliser
Apply balanced fertilizer in spring as growth begins. Light feeding monthly during blooming period.
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Temperature
Prefers cool to moderate temperatures (50–75°F / 10–24°C). Dormant in winter.
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Humidity
Low to moderate; prefers drier conditions. Good air circulation reduces fungal issues.
Toxicity
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Non-toxic; safe for pets and children.
Common Diseases
Common Pests
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.