Ornithogalum umbellatum (Garden Star-of-Bethlehem) is a European native with two subspecies (ssp.).
Ornithogalum umbellatum in the garden
The Garden Star-of-Bethlehem is hardy to about -26.1 °C/-15 °F and can be grown in the garden all year round. The plant likes a well-drained soil that may contain some sand and grit and is suitable for sunny to semi-shady positions.
The bulbs can be planted 5 to 10 centimetres deep, 10 centimetres apart.
Keep the soil moist but not wet when the plants are growing (spring to summer). Some pond water can be used as a fertiliser.
When flowering is over in early summer, the leaves will begin to turn yellow. When the foliage has died back it can be cut off. There is no need to water or feed Ornithogalum umbellatum until next spring.