How to Grow Star of Bethlehem
Star of Bethlehem
Ornithogalum dubium
flowerOrnithogalum dubium is a tender bulbous perennial producing clusters of bright, star-shaped flowers in shades of orange, yellow, or white. Native to South Africa, it's prized as a cut flower and ornamental houseplant. The plant displays striking, dense inflorescences with reflexed petals that create a distinctive star pattern.
When should you plant Star of Bethlehem in your zone?
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Example Star of Bethlehem timeline · Pittsburgh, PA (Zone 6b)
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Plant Star of Bethlehem
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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First Star of Bethlehem blooms
Around Jun 16≈ 60 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Star of Bethlehem dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 9b-11; grown as a houseplant or container plant in cooler regions
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Get my Star of Bethlehem timeline →Growth Stages
Dormancy
8-12 weeksBulbs are resting in cool, dry conditions with minimal visible growth
Keep soil nearly dry; store at 50-60°F if removed from soil. Duration varies but typically lasts 8-12 weeks.
Sprouting
2-3 weeksGreen shoots emerge from the soil, developing into long, narrow leaves
Begin watering gradually as growth initiates. Provide bright light. Keep temperature around 60-65°F initially.
Vegetative Growth
3-4 weeksElongated, strap-like green leaves form a basal rosette; flower bud begins developing at the center
Maintain consistent moisture without waterlogging. Increase light intensity and temperature to 65-75°F. Apply balanced fertilizer every 2-3 weeks.
Flowering
2-4 weeksTall flower spike emerges with dense raceme of 20-40 star-shaped flowers opening sequentially from bottom to top
Maintain bright light and moderate warmth (70-75°F). Water carefully to avoid wetting flowers. Support tall stems if needed. Provide humidity.
Post-Flowering & Decline
3-4 weeksFlowers fade and drop; foliage begins to yellow and wither as plant enters dormancy
Continue moderate watering until foliage completely browns. Allow leaves to fully senesce before removing; this replenishes the bulb. Gradually reduce water and move to cool location.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Increase humidity; spray leaves with water; use insecticidal soap or miticide if severe
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Remove with alcohol-soaked cotton swab; apply neem oil or insecticidal soap
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Scrape off manually; treat with horticultural oil or insecticidal soap
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Ensure excellent drainage; avoid overhead watering; remove affected bulbs immediately; apply fungicide if needed
Uses
Ornamental Garnish
CulinaryWhile not edible itself, the striking star-shaped flowers are used as premium decorative elements in upscale floral presentations and can garnish special occasion platters as a visual accent. [source]
Cut Flower Arrangement
HouseholdOne of the premier cut flowers in the florist trade, with exceptional vase life of 10-14 days. The bold geometric flowers and long stems make them ideal for modern and minimalist arrangements. [source]
Dried Flower Arrangements
CraftSeed pods and mature flower structures dry beautifully and retain their form and subtle coloration, making them suitable for dried arrangements and botanical crafts. [source]
Pollinator Attraction
WildlifeThe bright, open flowers attract bees and other pollinators, though it is not native to most temperate regions. In subtropical and tropical gardens, it supports local pollinator populations. [source]
Traditional Medicine
MedicinalIn South African traditional medicine, Ornithogalum species have been used historically; however, some Ornithogalum species contain cardiac glycosides and should not be ingested without professional guidance. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Cut flower stems when the lowest 3-4 flowers on the spike have opened. Harvest in the morning. Stems will continue opening flowers progressively over 1-2 weeks in a vase. For propagation, allow seed pods to mature on the plant before harvesting seeds.
Fun Facts
- 🌱 Ornithogalum dubium is commercially cultivated in California, Israel, and the Netherlands as a major cut-flower crop, with over 100 million stems traded annually.
- 🌱 The name 'Star of Bethlehem' is shared with several Ornithogalum species and refers to the star-shaped arrangement of the flowers; the biblical connection makes it popular during winter holidays.
- 🌱 In recent decades, commercial breeding has produced cultivars in vibrant orange and yellow shades; historically wild forms are predominantly white or pale yellow, making modern cultivars distinctly different from their ancestors.
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