How to Grow Winter's Star
Wikimedia Commons
Winter's Star
Ornithogalum dubium
flowerWinter's Star is a striking ornamental bulb that produces vibrant star-shaped flowers in shades of orange, yellow, or white, typically blooming in late winter to early spring. This South African native is prized for its long-lasting flowers and unique architectural form, making it an excellent choice for both indoor forcing and garden cultivation.
When should you plant Winter's Star in your zone?
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Example Winter's Star timeline · Pittsburgh, PA (Zone 6b)
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Plant Winter's Star
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 Winter's Star blooms
Around Jun 16≈ 60 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Winter's Star dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Best in zones 9-11; can be grown as houseplants or in containers in cooler climates
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Get my Winter's Star timeline →Growth Stages
Dormancy
Variable storage periodBulbs are resting before planting; appear as papery-skinned bulbs
Store bulbs in cool, dry conditions until planting. Plant in autumn in warm zones or chill bulbs for 8-10 weeks before forcing indoors.
Sprouting
2-3 weeksInitial shoot emergence and root development underground; first green shoots appear above soil
Keep soil consistently moist but not waterlogged. Provide cool conditions (50-60°F) if forcing indoors. Ensure good drainage to prevent rot.
Vegetative Growth
4-6 weeksLong, strap-like green leaves develop in an upright clump; plant establishes root system
Maintain moderate watering and provide full sun or bright light. Support tall stems if necessary. Apply balanced fertilizer monthly.
Flowering
3-4 weeks per stem; sequential blooming extends seasonTall flower stalks emerge with star-shaped flowers arranged in loose spikes; blooms open progressively along the stem
Continue moderate watering; water at soil level only. Provide support stakes for tall stems. Remove faded individual flowers to encourage continuous blooming.
Senescence & Dormancy
4-6 weeks transitionFlowers fade, foliage yellows and dies back; bulb redirects energy to storage
Reduce watering as foliage declines. Allow leaves to fully yellow before removing. Do not cut foliage until completely brown. Provide cool, dry storage after dormancy begins.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Increase humidity, spray with water, or use neem oil if severe
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Remove with alcohol-soaked cotton swabs or treat with insecticidal soap
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Ensure proper drainage to discourage egg-laying; discard damaged bulbs immediately
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Improve drainage, avoid overwatering, and remove affected bulbs promptly
Uses
Not for consumption
CulinaryWinter's Star bulbs and flowers are toxic and not edible. [source]
Cut flower arrangements
HouseholdThe long-lasting star-shaped flowers make excellent additions to winter bouquets and arrangements, providing unique geometric interest and color contrast. [source]
Forcing for winter bloom
HouseholdWidely used for indoor forcing in temperate climates, producing reliable winter color when outdoor gardens are dormant. Popular for holiday and late-season decorations. [source]
Pollinator garden
WildlifeStar-shaped flowers attract bees and other pollinators during late winter and early spring when few other blooms are available. [source]
Dried flower arrangements
CraftFlowers dry well and retain their color and form, making them suitable for dried arrangements and decorative crafts. [source]
Harvest Tips
Cut flower stems for arrangements when the first few flowers on the spike have opened; buds will continue opening in the vase. Stems last 7-10 days in water. For bulb propagation, allow seed pods to mature fully if present. Harvest mature bulblets after foliage completely dies back and store in cool, dry conditions.
Fun Facts
- 🌱 Winter's Star is native to South Africa and belongs to the Asparagaceae family; the genus Ornithogalum includes over 100 species commonly called 'Star of Bethlehem'
- 🌱 The flowers exhibit a unique reflexing pattern where outer petals curve backward, creating a star or pinwheel effect that intensifies in bright light
- 🌱 Winter's Star bulbs have been commercially cultivated in the Netherlands for decades and are a major cut-flower crop exported worldwide, prized for their reliability and long vase life
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