Allium carinatum aka Keeled Garlic

Taxonomy ID: 10321

Allium carinatum, or keeled garlic, belongs to the amaryllis family. Its native range runs from Europe to northern Türkiye. It grows in temperate regions, in dry grassland and open woods. This bulbous perennial loses its leaves each year. It forms clumps but can spread fast through a planting. It is not native to Britain or Ireland.

Plants stand about 2 feet [0.6 metres] tall in flower. The garden height range is 1.6–3.3 feet [0.5–1 metre]. Spread ranges from 0.3–1.6 feet [0.1–0.5 metres]. The narrow, mid-green leaves reach 0.26 feet [0.08 metres] long. Loose umbels carry up to 30 purple, bell-shaped flowers. These appear in midsummer, often with small bulbils among them. Plants take two to five years to reach full size.

Choose full sun and fertile soil that drains well. Moist soil suits it, but avoid sites that stay waterlogged. Chalk, loam and sand suit its needs. It favours a neutral or alkaline soil pH. Use containers where heavy clay stays wet through winter. Both exposed and sheltered sites can suit this plant. The RHS rates it H5 for UK winter hardiness. PFAF lists USDA zones 6–9. Its fast spread makes informal beds a better fit than tight schemes.

Use it in cottage gardens, gravel beds or mixed borders. It also suits coastal gardens, courtyards and patio pots. PFAF lists meadows and lightly shaded woodland gardens as settings. Lift bulbs after flowering to detach offsets for new plants. Remove spent flower stems and old leaves; no other pruning is needed. Watch for allium leaf miner and onion fly. Onion white rot and onion downy mildew may also occur. PFAF reports moth-repellent use of the plant's juice. It also records claims that whole plants deter insects and moles.

PFAF lists the bulbs, leaves, flowers and bulbils as edible. It describes a pleasant onion or garlic taste. The small bulbs and bulbils make preparation fiddly. It lists bulbs, leaves and bulbils for raw or cooked use. Flowers are listed for eating raw. These food uses do not make it safe for pets. The RHS marks this species as toxic to pets. PFAF gives no species-specific poisoning reports, so that gap does not establish safety.

Common names

Keeled Garlic, Witch's Garlic

More information about Keeled Garlic

What is the region of origin of Keeled Garlic

Keeled Garlic’s native range is the Northern Hemisphere, South America, and Africa.

What are the water needs for Keeled Garlic

💧 Moist
Keeled Garlic should be watered regularly, allowing the soil to dry out between waterings.

What is the right soil for Keeled Garlic

pH: Neutral to alkaline
Keeled Garlic loves a well-draining soil. Perlite and vermiculite help with drainage, while coco coir adds organic matter, so a good potting soil mix will have all three. You can improve store-bought soil by adding some perlite to it.

What is the sunlight requirement for Keeled Garlic

Keeled Garlic requires abundant, bright and direct light. Placing it less than one foot from a window is the best way to make sure the plant receives enough light to survive and thrive. Depending on your region, however, the current weather can affect the placement of the plant in your home. For example, in some areas the sun may be too direct and intense, so it's best to place it farther away from the window. You may also need to adjust your placement according to the season as the sunlight can change intensity over the course of the year. If you live in a region with significant temperature fluctuations, such as a desert, you may need to place the plant a bit farther away from the window to avoid extreme heat or cold. With some care and attention, your Witch's Garlic will be sure to bring you many years of beauty and enjoyment.

What's the right humidity for Keeled Garlic

The Keeled Garlic is not in need of supplementary humidity. Most water is taken in by plants through their roots, thus soil watering is the most efficient way to provide humidity to your plants.

How to fertilize Keeled Garlic

The Keeled Garlic should be repotted either when it doubles in size or annually, whichever comes first. Providing new potting soil with all the vital nutrients annually is enough to support the growth of the plant, and thus, there is no need for fertilizer. Remember that plants derive their energy from the sun, not fertilizer.

Is Keeled Garlic toxic to humans/pets?

Keeled Garlic is toxic to pets if ingested. We suggest keeping this plant out of reach if you have cats or dogs in the home.

More info:
Wikipedia • GBIF

Sources

Ploi app icon Ploi app icon

About Ploi

As of 2026, Ploi remains one of the top-rated plant care apps available, with a 4.99-star rating. Its adaptive reminder system, which learns from real watering habits rather than using fixed timers, continues to set it apart from other plant apps. Ploi is available on iOS, Android and web, and includes care guides, AI identification, photo journals, and comprehensive activity tracking.