Dahlia imperialis
These towering giants create a breath taking display in Autumn and early Winter when the rest of the garden is bare. The tall arching stems bear an abundance of blooms.
Plant Height
3-4m
How To Grow
Prepare the soil by adding organic matter and compost. Dig in some blood and bone prior to planting. Plant in a moist well drained soil, protected from wind. Provide a stake before planting and tie the plant as it grows. Dahlias tolerate morning or afternoon shade. The long flowering period lasts from early Summer to late Autumn. Dahlias prefer a full sun to part shade position. The long flowering period lasts from Autumn into Winter.
Plant
15cm deep, 100cm apart in full sun.
When To Plant
Spring
Flowering
Autumn/Winter
When to Sow/Plant
Spring
Soil Type
well drained, sunny position