Ornamental Allium
bulb
Ornamental relatives of onion and garlic. Deer- and rabbit-resistant. Plant in fall, 3–4× the bulb diameter deep. Globe-shaped flower heads are outstanding in arrangements — fresh or dried. Excellent bridging plant between spring and summer perennials.
At a glance
- USDA Zones
- 4–9
- Sun
- Full sun (6+ hrs)
- Water
- Low — drought-tolerant once established
- Soil
- Loam, sandy
- pH
- Neutral
- Spacing
- 8 in. between plants
- Per square foot
- 4 plants per square
Planting & harvest windows
Northern Hemisphere timing. Adjust ±4–6 weeks based on your last/first frost dates.
| Activity | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Plant | ||||||||||||
| Harvest |
Plant Harvest
Good companions
Recommended varieties
- Gladiatorstart
Large 4-inch purple globe on 3-ft stems — dramatic focal point.
- Globemasterstart
Giant 8-inch violet-purple sphere — one of the most impressive bulbs.
- Purple Sensationstart
Deep rich purple, 3-ft stems — stunning with late tulips.
- Mount Evereststart
Pure white globes — elegant contrast to purple companions.
Add Ornamental Allium to your raised bed — the planner handles spacing and companion warnings automatically.
Open the planner →