PL. —Ribes viburnifoliumBotanical illustration — drop image
Ribes viburnifolium

Evergreen Currant

WinterSpringSummerFall
8a10bHardiness zone
Peak bloom windowZone 6b · frost-offset weeks
Winter
Peak bloom
Spring
Peak bloom
Summer
Not in bloom
Fall
Not in bloom
Peak bloom
In bloom
Background

Evergreen Currant is a low, spreading shrub native to Santa Catalina Island and northwestern Baja California. In cultivation it serves as a durable ground cover for dry shade, one of the hardest niches to fill in California-style gardens. The dark green, slightly wavy leaves release a resinous scent when brushed, and the plant stays attractive year-round with minimal care.

It spreads gradually on arching stems that root where they contact soil, filling slopes and shaded areas under native oaks. Plant in fall as temperatures ease and seasonal rains begin, water through the first dry season to help roots establish, then reduce supplemental irrigation sharply. The plant tolerates deep shade and competes well with tree roots once settled. Poorly drained or routinely irrigated sites invite crown and root problems.

Small dark pink to reddish flowers appear from late winter into early spring, drawing hummingbirds and native bees. The small dark berries that follow are consumed by birds, adding modest wildlife value to a planting whose primary role is landscape utility.

Care guide
SunPart shade to full shade
WaterLow
SoilWell-drained, slightly acidic
Spacing6–8 ft
Height2–4 ft
Zone8a – 10b
Native RegionCA
Seasonal tasks
spring
watchWater deeply every two to three weeks through the first dry season if rains are absent. Established plants in subsequent years need little to no summer irrigation.
cutAfter the spring flush, remove dead, damaged, or crossing stems at the base to maintain an open, spreading form; avoid cutting into old hardwood.
watchCheck new growth in late winter for aphid colonies on stem tips; dislodge them with a firm spray of water before populations build.
summer
sowPlant container-grown stock in early fall while soil is still warm; water in thoroughly and apply a light mulch layer to conserve moisture through establishment.
watchWithhold supplemental water from established plants through summer. Wilting on a mature specimen typically signals overwatering or poor drainage, not drought stress.
fall
watchBefore fall rains arrive, confirm drainage is adequate around the crown. Correct any grading issues or pooling that would keep roots saturated through winter.
Common problems

Phytophthora Root Rot

Symptoms

Wilting despite moist soil, yellowing leaves, stunted growth, and dark, decayed roots and crown tissue. Vines may collapse during hot weather.

Treatment

Plant in well-draining soil and avoid waterlogging. Remove and destroy affected vines. Improve drainage with raised beds or amended soil and avoid overwatering.

Powdery mildew

Symptoms

White or grey powdery coating on leaves — usually starting on older growth in humid conditions or when nights cool.

Treatment

Improve air circulation by thinning plants. Apply neem oil or potassium bicarbonate spray at first sign. Avoid overhead watering.