growing orienpet lilies in zone 9
Can they stay in the ground during the winter, and do they need cold to bloom? What to do?
Certified GKH Gardening Expert
You on the outside edge of the growing zone of 4-8 for Orienpet Lililies.
Since they are a perennial they do need to stay in the ground year-round.
They do need a chill down of at least 8 weeks during dormancy.
There are some reports of some success in zone 9.
Look for bulb varieties that list zones 9. Purchase from a reputable source and review their guarantee.