description Ceanothus thyrsiflorus Overview
Ceanothus thyrsiflorus, commonly known as blue blossom or California lilac, is a species of evergreen shrub in the buckthorn family, Rhamnaceae. It is native to the coastal mountain ranges of California and Oregon, where it naturally thrives in chaparral and woodland environments. The plant is characterized by its small, glossy green leaves and dense clusters of pale blue to deep blue flowers that typically bloom in the spring. As a large, fast-growing shrub that can reach up to six meters in height, it is commonly used in habitat restoration and water-wise landscaping.
insights Ranking position
Ceanothus thyrsiflorus ranks #152 of 535 in the Shrub ranking, behind Ribes uva-crispa, ahead of Syringa meyeri.
help Ceanothus thyrsiflorus FAQ
What are the common names for Ceanothus thyrsiflorus?
Ceanothus thyrsiflorus is commonly known as blue blossom or California lilac. It is an evergreen shrub belonging to the buckthorn family, Rhamnaceae.
Where is the California lilac native to?
This shrub is native to the coastal mountain ranges of California and Oregon. In the wild, it naturally thrives in chaparral and woodland environments along the Pacific coast.
What color are the flowers on a Ceanothus thyrsiflorus?
Despite being called a lilac, the flowers are actually a striking, vibrant blue. These fluffy, fragrant blossoms usually appear in mid to late spring and are highly attractive to local pollinators.
Is the blue blossom drought tolerant?
Yes, because it is native to the dry chaparral regions of California, Ceanothus thyrsiflorus is highly drought tolerant once established. It thrives in well-drained soil and requires very little summer irrigation.
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