When to Dig Up Dahlias, Cannas and Gladiolus in Missouri
Lift dahlias, cannas and gladiolus in the week or two after the first frost that blackens their leaves.
Home & garden, state by state
Lift dahlias, cannas and gladiolus in the week or two after the first frost that blackens their leaves.
In Missouri, the safe cutoff for planting trees and shrubs in fall is six weeks before the first fall frost.
In Missouri, winter mulch goes on after the ground starts to freeze, not when the first frost arrives.
The safe target in Mississippi is to get trees and shrubs in the ground six weeks before the first fall frost.
Minneapolis gardeners wait until the soil itself freezes, not the calendar, before laying straw over strawberries and mulch around perennial crowns for winter.
Minnesota’s ground freezes too deep for dahlias, cannas and gladiolus to survive winter outdoors, so gardeners statewide dig them after the first fall frost and store them indoors.
Fall planting works in Minnesota if you get trees and shrubs in the ground with enough time for roots to establish before the soil freezes.
In Michigan, dahlias, cannas and gladiolus have to come out of the ground for winter. The trigger is the first frost that blackens the leaves.
In Michigan, the safe window to plant trees and shrubs in fall closes between August 25 and September 9, which is six weeks before the first fall frost…
Wait for the ground to start freezing, then mulch. For Michigan strawberries and borderline perennials, that means late fall, well after the first frost…