Lilium Oriental-Trumpet (OT) ‘Robina’ is a hybrid lily known for its fragrant, large, deep pink blooms with a white edge. It’s a long-lasting, summer-flowering bulb that makes an excellent choice for garden beds, borders, and cut flower arrangements.
1. Best Growing Conditions
✅ Climate:
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Thrives in cool to temperate regions with moderate summers.
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Best suited for Western Cape, Eastern Cape, Free State, Gauteng, and parts of KwaZulu-Natal.
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Tolerates light frost but needs cool winter dormancy to bloom well.
✅ Sunlight:
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Prefers full sun to partial shade (at least 6 hours of sunlight per day).
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Afternoon shade is beneficial in hotter climates.
✅ Soil Requirements:
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Well-draining, rich, loamy soil with plenty of organic matter.
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pH: 6.0–6.8 (slightly acidic to neutral).
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If soil is heavy, add compost, sand, or perlite for better drainage.
2. Planting Lilium Bulbs
✅ Best Planting Time:
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Autumn (April–May) or early spring (August–September) for summer flowering (November–February).
✅ Depth & Spacing:
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Plant 15–20 cm deep and 20–30 cm apart.
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Deeper planting stabilizes tall stems and keeps roots cool.
✅ Container Growing:
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Use large pots (30–40 cm deep) with well-draining potting mix.
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Ensure good drainage holes to prevent waterlogging.
3. Watering & Care
✅ Watering:
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Water regularly to keep soil moist but not soggy.
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Reduce watering once the plant enters dormancy after flowering.
✅ Fertilizing:
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At planting: Apply a slow-release bulb fertilizer (10-10-10 or 5-10-10).
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During growth: Feed every 2 weeks with a balanced liquid fertilizer.
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After flowering: Apply a potassium-rich fertilizer to strengthen the bulb for next season.
✅ Mulching:
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Apply a 5 cm layer of mulch (compost, bark, or straw) to retain moisture and keep roots cool.
4. Flowering & Dormancy
✅ Bloom Time:
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Blooms in mid to late summer (November–February).
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Produces large, fragrant, trumpet-shaped pink flowers with a white edge.
✅ After Flowering Care:
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Deadhead spent flowers to encourage energy storage in the bulb.
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Allow foliage to die back naturally—do not cut it too soon.
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Reduce watering as the plant enters winter dormancy.
✅ Lifting & Storing Bulbs (Optional):
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In very wet winter regions, lift bulbs after dormancy and store in a cool, dry place until replanting in autumn.
5. Staking & Support
✅ Support Needed:
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Tall plants (up to 1.2–1.5 m) may need staking to prevent bending.
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Use bamboo stakes or plant supports early in the season.
6. Pests & Diseases
✅ Common Pests:
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Aphids & thrips – Can be controlled with neem oil or insecticidal soap.
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Lily beetles – Handpick or use organic insecticides.
✅ Disease Issues:
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Botrytis (Grey Mold) – Avoid overhead watering and ensure good air circulation.
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Bulb rot – Ensure well-draining soil and avoid overwatering.
7. Propagation
✅ By Bulbs (Easiest Method):
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Over time, bulbs produce offsets (small bulbs) that can be divided and replanted in autumn.
✅ By Scales (Advanced Method):
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Large bulbs can be scaled (breaking off scales) and grown in moist compost.
8. Companion Planting
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Pairs well with Freesias, Alliums, Gladiolus, and Hostas.
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Ideal for mixed borders, containers, and cut flower gardens.
Conclusion
Lilium ‘Robina’ is a spectacular, fragrant summer-flowering lily that thrives in South African gardens with autumn or early spring planting. With full sun, rich well-draining soil, and regular feeding, you’ll enjoy tall, stunning blooms every summer! 🌸🌿