Coast Onion (Allium Dichlamydeum) is a perennial bulb in the Amaryllidaceae family with easy care difficulty. It requires low watering and full sun or partial shade light in USDA hardiness zones 8-10. This plant is toxic to cats and dogs — keep it out of reach of pets. It can be grown indoors.

A perennial bulbous herb native and endemic to coastal California, recognized for its attractive pink to magenta flowers and grass-like foliage.

Coast Onion

Coast Onion

Allium Dichlamydeum

A perennial bulbous herb native and endemic to coastal California, recognized for its attractive pink to magenta flowers and grass-like foliage.

Quick Facts

Type
bulb
Lifecycle
perennial
Care Difficulty
Easy
Water Needs
Low
Light
Full Sun, Partial Shade
Hardiness Zones
8-10

Safety

⚠️
Not Pet Safe
👶
Child Safe
Non-Toxic

Growing Conditions

Soil Types:sandy, loamy, rocky
Indoor:Yes
Outdoor:Yes
Garden Use:specimen, pollinator support, groundcover

Care Calendar

Monthly care tasks for Coast Onion

Jan
Prune
Feb
Fertilize
Mar
Repot
Apr
Water+
May
...
Jun
...
Jul
...
Aug
...
Sep
...
Oct
...
Nov
...
Dec
...

Expert Care Tips

Pro tips from botanists and plant experts

Watering Tip

Check soil moisture by inserting your finger 1 inch deep. Water only when the top layer feels dry to prevent overwatering.

Humidity Trick

Group plants together to create...

Growth Hack

Rotate your plant every...

Photo Gallery10+ photos

Coast Onion
Coast Onion detail

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Taxonomy

Family:Amaryllidaceae
Genus:Allium