Exposure: Full sun- Partial shade
Moisture: Medium wet- Medium dry
Height: 18 inches
Bloom: July, August
Attracts: The nectar and pollen of the nodding flowers attract primarily bees, including honeybees, bumblebees, Anthophorine bees (Anthophora spp.), and Halictid bees (Lasioglossum spp.). Insects that feed destructively on the foliage, bulbs, and other parts of Nodding Onion and other onion species (Allium spp.) include the Onion Plant Bug (Lindbergocapsus allii) and a similar plant bug (Lindbergocapsus ainsliei), larvae of the False Japanese Beetle (Strigoderma arbicola), larvae of the Onion Maggot (Delia antiqua), larvae of the Black Onion fly (Tritoxa flava), larvae of the Onion Bulb Fly (Eumerus strigatus), and Onion Thrips (Thrips tabaci). Mammalian herbivores usually avoid Allium spp.