Ornithogalum umbellatum

Ornithogalum umbellatum (star-of-Bethlehem, grass lily, nap-at-noon, eleven-o'clock lady), is a perennial bulbous flowering plant, native throughout most of southern and central Europe, north-western Africa and south-western Asia.

Ornithogalum umbellatum requires considerable moisture during winter and spring, but can tolerate summer drought. It can be grown in a woodland garden as semi-shade is preferable. It is hardy to hardiness zone 5, and can become weedy. The plant is toxic. It is used in some herbal remedies.
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils. Suitable pH: acid, neutral and basic (alkaline) soils. It can grow in semi-shade (light woodland) or no shade. It prefers moist soil.

This plant is perennial with bulbs below ground; the bulb is 15–25 millimetres (0.6–1.0 in) long and 18–32 mm (0.7–1.3 in) in diameter. It has 6–10 leaves, linear with a white line on the upper surface, up to 30 centimetres (12 in) long and 8 mm (0.3 in) broad, and a scape of 10–30 cm (4–12 in). The flowers group in a corymbose raceme with 6–20 flowers, and are white with a green stripe outside.

Seed - best sown as soon as it is ripe in a cold frame. Sow the seed thinly and leave the seedlings undisturbed in the pots for their first dormancy, but apply liquid feed at intervals, especially in their second year of growth. Divide the bulbs at the end of their second year of growth, putting 2 - 3 bulbs in each pot. Grow them on for one more year and them plant them out into their permanent positions whilst they are dormant. The seed can also be sown in a cold frame in early spring. Division of offsets in September/October. The larger bulbs can be replanted immediately into their permanent positions. It is best to pot up the smaller bulbs and grow them on for a year before planting them out when dormant in late summer.