Short Growing Season (Mountain Areas)

Where daytime temperatures are consistently 90° and above, but the soil remains cool, plant all lily bulbs in full sun so they will receive enough heat to mature before winter. Asiatic lilies can handle 100° summers and -40° winters without special winter care, but you should always mulch Trumpets and early-blooming Orientals after the ground freezes, to discourage any rodents from taking up residence and to provide a blanket of insulation for the coldest months