Does the Allium Gladiator bulbs need to be dug up and stored for the winter?

Allium Gladiator bulbs are generally hardy and can survive winter in USDA zones 3-8 without needing to be dug up. However, in areas with extremely cold winters or excessive moisture, it may be beneficial to lift the bulbs and store them in a cool, dry place. If you do decide to leave them in the ground, applying a layer of mulch can help protect them from harsh conditions. Always check your local climate to determine the best care for your bulbs.