Ceanothus spinosus - Red-heart mountain lilac

Red-heart mountain lilac (Ceanothus spinosus) is an evergreen shrub of California hillsides with an arborescent, tree-like habit, filling canyons with fragrant blue flowers on seasonally wet, heavy clay slopes.¹ It grows 2-4 m tall and 2-3 m wide.¹

Inputs

• Hardiness zone 7¹
• Hardiness zone 8¹
• Hardiness zone 9¹
• Hardiness zone 10¹
• Wet soil¹

Type

• Ceanothus spp. - Wild lilac
• Shrub
• Evergreen

Functions

• Fire resistance²

Dimension	At maturity
Height (m)	2-4
Diameter (m)	2-3

Footnotes

1. Ceanothus spinosus, Red-Heart Mountain Lilac | Las Pilitas Nursery Native Plant Database ↩ ↩² ↩³ ↩⁴ ↩⁵ ↩⁶ ↩⁷

2. Leaf burn times of California native plants, Las Pilitas Nursery, 2005 propane-torch ignition trial, live-leaf ignition time 90 seconds ↩