California lilacs 'Autumnal Blue' is distinct for its abundant sky-blue flowers. A cultivar of Ceanothus, it derives its name from those flowers, which bloom in late summer through fall. Gardeners love how easy it is to get this plant to grow up to 3 m tall and wide.
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Shrub
Plant Type
3 m
Plant Height
3 m
Spread
Green
Leaf Color
8 cm
Flower Size
Purple, Blue
Flower Color
Evergreen
Leaf type
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Care Guide
Care Guide for California lilacs 'Autumnal Blue'
Every week
Water
Full sun
Sunlight
15 - 35 ℃
Ideal Temperature
Garden Soil
Soil Type
Pruning:
California lilacs 'Autumnal Blue' is an evergreen shrub with vibrant blue flowers. Prune in early to late winter to maintain shape and promote growth, focusing on dead branches and overcrowding for improved air circulation. Proper pruning enhances flowering and prevents diseases, but avoid late-season pruning to protect spring blooms.
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