| Latin Name | Common Name | Habit | Height | Hardiness | Growth | Soil | Shade | Moisture | Edible | Medicinal | Other |
| Allium acuminatum | Hooker's Onion, Tapertip onion | Bulb | 0.3 |
5-9
| | LM | N | DM | 3 | 2 | 2 |
| Allium aflatunense | Persian Onion, Ornamental Onion | Bulb | 1.0 |
4-8
| M | LM | N | M | 2 | 2 | 1 |
| Allium bisceptrum | Aspen Onion, Twincrest onion | Bulb | 0.3 |
7-10
| | LM | N | M | 3 | 2 | 1 |
| Allium bolanderi | Bolander's Onion | Bulb | 0.2 |
6-9
| | LM | N | M | 3 | 2 | 1 |
| Allium brevistylum | Shortstyle Onion | Bulb | 0.5 |
-
| | LM | N | MWe | 3 | 2 | 1 |
| Allium cepa | Onion, Garden onion | Bulb | 0.6 |
4-10
| M | LM | N | M | 5 | 3 | 3 |
| Allium cepa aggregatum | Potato Onion | Bulb | 1.2 |
4-8
| M | LM | N | M | 4 | 3 | 3 |
| Allium cepa proliferum | Tree Onion, Walking Onion | Bulb | 1.2 |
4-8
| M | LM | N | M | 5 | 3 | 3 |
| Allium cernuum | Nodding Onion, New Mexican nodding onion | Bulb | 0.5 |
5-9
| F | LMH | N | M | 5 | 2 | 2 |
| Allium douglasii | Douglas' Onion | Bulb | 0.3 |
0-0
| | LM | N | DM | 3 | 2 | 1 |
| Allium dregeanum | Wild Onion | Bulb | 0.6 |
-
| | LM | N | DM | 3 | 2 | 1 |
| Allium drummondii | Prairie Onion, Drummond's onion | Bulb | 0.3 |
6-9
| | LM | N | M | 3 | 2 | 1 |
| Allium fistulosum | Welsh Onion | Bulb | 0.6 |
5-9
| F | LMH | N | M | 5 | 2 | 2 |
| Allium flavum | Small Yellow Onion, Ornamental Onion | Bulb | 0.5 |
4-7
| M | LMH | SN | M | 2 | 2 | 1 |
| Allium geyeri | Geyer's Onion, Bulbil onion | Bulb | 0.5 |
6-9
| | LM | N | M | 3 | 2 | 1 |
| Allium giganteum | Giant Onion, Ornamental Onion | Bulb | 2.0 |
6-10
| F | LM | N | DM | 3 | 2 | 1 |
| Allium kunthii | Kunth's onion | Bulb | 0.4 |
6-9
| | LM | N | M | 3 | 2 | 1 |
| Allium macropetalum | Largeflower Wild Onion | Bulb | 0.3 |
4-8
| | LM | N | M | 4 | 2 | 1 |
| Allium moly | Golden Garlic, Ornamental Onion | Bulb | 0.3 |
3-9
| F | LM | N | DM | 4 | 2 | 1 |
| Allium mutabile | Wild Onion | Bulb | 0.5 |
-
| | LM | N | M | 3 | 2 | 1 |
| Allium nevadense | Nevada Onion | Bulb | 0.2 |
4-8
| M | LM | N | DM | 4 | 0 | 1 |
| Allium platycaule | Broadstemmed Onion | Bulb | 0.1 |
5-9
| | LM | N | DM | 3 | 2 | 1 |
| Allium schoenoprasum | Chives, Wild chives, Flowering Onion | Bulb | 0.3 |
5-11
| M | LMH | SN | M | 5 | 2 | 3 |
| Allium stellatum | Prairie Onion, Autumn onion | Bulb | 0.8 |
5-9
| M | LM | N | M | 3 | 2 | 1 |
| Allium textile | Textile Onion | Bulb | 0.2 |
5-9
| | LM | N | DM | 3 | 2 | 2 |
| Allium unifolium | One-Leaved Onion | Bulb | 0.6 |
7-10
| | LM | N | DM | 3 | 2 | 1 |
| Allium validum | Swamp Onion, Pacific onion | Bulb | 0.6 |
7-10
| | LM | N | MWe | 3 | 2 | 1 |
| Allium victorialis | Alpine Leek, Victory onion | Bulb | 0.6 |
6-9
| | LM | N | DM | 4 | 2 | 1 |
| Allium vineale | Crow Garlic, Wild garlic, Compact onion, False Garlic, Wild, Onion | Bulb | 0.6 |
5-8
| M | LM | N | DM | 3 | 2 | 2 |
| Asphodelus fistulosus | Onionweed | Annual/Perennial | 0.6 |
7-10
| | LM | SN | DM | 2 | 1 | 0 |
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