When to Plant Asiatic Lily in Unknown

Growing Asiatic Lily in Unknown: Complete Guide

Asiatic Lily (Lilium hybrids (Asiatic)) is fall-planted — it goes in the ground a few weeks before the first fall frost and overwinters for blooms the following spring. Depending on your zone, Unknown gardeners plant between August 9, 2026 (Zone 5a) and October 29, 2026 (Zone 9b).

Because Unknown stretches across 6 USDA hardiness zones (5a, 7a, 7b, 8b, 9a, 9b), planting windows can shift by as much as six to eight weeks from one end of the state to the other. Gardeners in the warmer southern zones can start earlier, while those in cooler northern zones should wait until the zone table above shows their last frost has passed.

With 250 days to maturity, Asiatic Lily fits comfortably within Unknown's growing season in most zones. In the warmest parts of the state, a second planting later in the season may be possible.

Asiatic Lily requires full sun to part shade and moderate; well-drained moisture. Check your local forecast for humidity and heat advisories that may affect timing and pest pressure.

For the most precise planting dates tailored to your exact location, enter your ZIP code on our planting calendar or use the zone table above to find the schedule for your area of Unknown.