Genus guide
Allium — 30 species
Part of the Amaryllis & allium family family (Amaryllidaceae)
Allium encompasses both culinary staples — garlic, onions, chives, ramsons — and ornamental bulbs, all sharing the genus's characteristic pungent chemistry. Virtually all species thrive in full sun with six or more hours of direct light and prefer sharply drained, loamy or sandy soil; they are notably drought-tolerant once established and dislike waterlogged conditions that rot the bulb. All Allium species are toxic to cats and dogs: organosulfur compounds damage red blood cells and can cause life-threatening hemolytic anemia, with cats particularly susceptible even to small quantities.
All Allium species we cover
- 'Music' Hardneck Garlic
- 'Red Baron' Onion
- 'Walla Walla' Onion
- Ailsa Craig Onion
- Allium 'Firmament'
- Allium 'Gladiator'
- Allium 'Globemaster'
- Allium 'Hair'
- Allium 'Mount Everest'
- Allium 'Purple Sensation'
- Allium schubertii
- Chives
- Cipollini Onion
- Crow Garlic
- Elephant Garlic
- Field Garlic
- Garlic
- Garlic Chives
- King Richard Leek
- Leek
- Onions
- Purple Stripe Garlic
- Ramsons
- Red Tropea Onion
- Rocambole Garlic
- Sand Leek
- Shallot
- Spring Onion
- Welsh Onion
- White Onion
Allium — frequently asked questions
Are Allium plants toxic to cats and dogs?
Most Allium are not pet-safe. Of the 30 Allium species in the Growli library, 30 (100%) carry a toxic or mildly-toxic ASPCA classification and 0 are pet-safe. Always confirm the exact species on its pet-safety page before trusting it around cats or dogs.
How much light do Allium plants need?
Most Allium do best in direct sun. If yours stretches toward the window or loses its variegation it wants more light; scorched or bleached leaves mean it is getting too much direct sun.
Are Allium easy to care for?
Some Allium suit more experienced growers — several want strong light, sharp drainage or a specific seasonal rhythm. Check the individual species page for the exact regime.
How many Allium varieties are there?
Growli's care library covers 30 Allium species and varieties — browse them all above. They share a similar light, water and soil pattern, so once you learn one Allium, the rest follow closely.
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