GroundWorx

Science · Plants, Natives & Crops

California Wild Rose

Native thicket-forming rose with pink flowers and persistent hips, useful where spreading by suckers is acceptable.

Rosa californica · Deciduous suckering shrub

Profile

Light
Sun to partial shade
Habit
Thorny shrub forming colonies
Wildlife
Hips feed birds; flowers support insects
Pruning
Remove dead canes and manage suckers rather than repeated tight shearing

Water & soil targets

Moisture (VWC)
Site-calibrated; depends on soil texture
Salinity tolerance
Not reliably characterized for this catalog label; avoid saline irrigation and diagnose with soil/water testing.
Drought tolerance
Moderate to good once established; thrives with some seasonal moisture.

Optimal root measurement depth

6–12 in

Typical active root zone for established native shrubs and vines. Typical guidance; confirm with a soil probe on site.

Deep occasional irrigation in dry weather; irrigate soil instead of foliage and avoid stagnant wet roots.

Problems to watch

  • Rust
  • Powdery mildew
  • Aphids

Stress signs

  • Orange rust pustules beneath leaves
  • White powdery distorted foliage
  • Leaf scorch and persistent wilt

Where you'll find it

  • Wildlife hedgerow
  • Slope-covering native thickets

More plants, natives & crops

All Science profiles

General agronomic guidance and typical ranges; actual targets vary by site, soil, climate and season.