How to Care for an Ornithogalum – The Plant Called Star of Bethlehem

Ornithogalum, commonly known as the “Star of Bethlehem,” is a charming and easy-to-care-for bulbous plant. Here’s a guide on how to maintain this beautiful plant, covering aspects such as location, light, temperature, substrate, fertilizer, watering, post-flowering care, wintering, and propagation:

1. Location and Light:

  • Ornithogalum grows best in a well-lit location with indirect sunlight, especially when grown indoors.
  • Outdoors, a little direct sun in the morning or evening is beneficial.

2. Temperature Tolerance:

  • Ornithogalum umbellatum is very hardy, tolerating temperatures down to -15°C.
  • Ornithogalum dubium is more sensitive, not tolerating temperatures below 5°C.
  • Ornithogalum thyrsoides is also sensitive to cold, requiring protection from frost.

3. Substrate and Fertilizer:

  • Ensure well-drained soil, and add sand or perlite to improve drainage if needed.
  • Apply fertilizer during the active growth period (March-May) with crushed bark, decomposed manure, or compost. Fertilize once a month.

4. Watering:

  • Allow the substrate to slightly dry between waterings.
  • Reduce water supply after flowering and during the dormant period in winter.

5. Post-Flowering Care:

  • Cut the flower stem after flowering to redirect energy to the bulb.
  • Leave foliage until it yellows and dries naturally to nourish the bulb for the next season.

6. Wintering:

  • Provide a period of rest in winter. If in a pot, move to a cool, dark place and reduce watering. Mulch if in the ground.

7. Propagation:

  • Division of Bulbs: Simple and effective method.
  • Sowing: Less common and takes longer.
  • Leaf Cuttings: More challenging, recommended for experienced gardeners.

By following these care tips, you can ensure your Ornithogalum thrives and enhances your garden with its spectacular flowering.

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