Sweet alyssum is a low, spreading annual (occasionally a short-lived perennial) in the cabbage family, grown for its clusters of honey-scented white, pink, purple or lilac flowers. It thrives in cool, lightly shaded or sunny spots with well-drained soil and needs little care.
Family
Brassicaceae (Cabbage family)
Grows as
Shrub
Light
Part shade
Water
Water regularly while establishing, then let the top of the soil dry out between waterings; it tolerates drought well.
Prefers cool conditions; flowers fade in sustained heat, and it is damaged by hard frost.
How easy
Easy
Safety
Not known to be toxic
Edible
Yes, some parts
Native range
W. & C. Medit. to Sinai
Climate
temperate
About
Lobularia maritima (syn. Alyssum maritimum) is a species of low-growing flowering plant in the family Brassicaceae. Its common name is sweet alyssum or sweet Alison, also commonly referred to as just alyssum (from the genus Alyssum in which it was formerly classified).
How to grow it
Lobularia maritima is cultivated in gardens, with many horticultural varieties with purple or pink flowers. The plant is best planted in early spring, but requires little maintenance when growing. Although an annual, it may reseed in temperate climates. It will flower more profusely if spent blooms are trimmed. When grown in gardens, it is typically used as groundcover, as it rarely grows higher than 20 cm (8 in) tall. It is also grown in cracks in paving and walls, and is especially associated with coastal locations. It prefers partial shade, and is highly resistant to heat and drought. Plants with darker-colored flowers do better in cooler temperatures.
Where it grows
This plant is native to the Mediterranean Basin and the Macaronesia region: (Canary Islands, Madeira, Cape Verde). It is widely naturalized elsewhere in the temperate world, including the United States. There is an endemic subspecies in the local flora of the Columbretes Islands of the western Mediterranean.
Uses
The petals, leaves, and tender stems of the plant can be eaten raw or cooked.
Text excerpted from the Wikipedia article Lobularia maritima by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.