PL. —Rhus lentiiBotanical illustration — drop image
Rhus lentii

Pink-flowering Sumac

WinterSpring
9a11aHardiness zone
Peak bloom windowZone 6b · frost-offset weeks
Winter
In bloom
Spring
Peak bloom
Summer
In bloom
Fall
Not in bloom
Peak bloom
In bloom
Background

Rhus lentii is a large, evergreen shrub endemic to the Channel Islands and the coastal foothills of southern California. It produces dense clusters of small pink to white flowers in late winter, placing it among the earliest significant nectar sources of the season for native bees. Few large shrubs in its climate range combine year-round foliage, seasonal flower interest, and tolerance of dry, nutrient-poor soils as effectively.

Established plants are highly drought tolerant and well suited to slopes, rocky banks, and chaparral-style plantings where erosion control is a priority. The shrub can spread nearly as wide as it is tall, functioning as an effective informal screen or windbreak. Small fruit clusters that follow the flowers attract birds through spring and early summer. It performs best in well-drained, low-fertility soils; regular irrigation or organically enriched soils promote lush growth that increases susceptibility to root diseases and reduces long-term vigor. After the first two growing seasons, supplemental water should be withdrawn or kept to an absolute minimum.

Care guide
SunFull sun
WaterLow
SoilWell-drained, dry, low-fertility
Spacing8–12 ft
Height6–15 ft
Zone9a – 11a
Seasonal tasks
spring
watchWater newly planted shrubs every 1–2 weeks through the first dry season only; eliminate or near-eliminate supplemental irrigation in all subsequent years.
watchMonitor developing flower buds in late winter; clusters should show pink to white coloring before fully opening to early pollinators.
summer
sowPlant container-grown specimens in early fall to allow root establishment before the dry season begins.
watchIn summer, inspect for sudden wilting or branch dieback, which may indicate verticillium wilt or armillaria root rot, especially where soil drainage is poor or irrigation has been excessive.
cutRemove dead, crossing, or damaged branches immediately after the main flush of flowers fades in spring.
fall
sowApply a 2–3 inch layer of coarse mulch over the root zone after planting, keeping mulch pulled back from the base of the stems.
Common problems

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.

Verticillium Wilt

Symptoms

Lower leaves yellow and wilt, often on one side of the plant, with brown streaking in the stem and crown tissue when cut open. Plants are stunted and decline over the season.

Treatment

Remove and destroy affected plants. Avoid planting in soil that has grown infected tomatoes, peppers, or other susceptible crops. Rotate beds and improve drainage; there is no cure once a plant is infected.

Armillaria Root Rot

Symptoms

Thinning, yellowing canopy with progressive dieback; white, fan-shaped mycelial mats visible beneath bark at or just below the soil line; honey-colored mushroom clusters appearing at the trunk base or on surface roots in autumn.

Treatment

No chemical cure exists. Improve drainage and avoid any injury to roots or trunk. Remove severely infected trees along with as much root material as possible. Do not replant susceptible species in the same spot.