Umbellularia californica

RHS Plant Profile
headache tree

Other common names

balm of heaven, Californian bay, Californian laurel, Californian olive tree, Californian sassafras tree, Californian spice tree, Oregon myrtle, pepperwood, myrtle

Trees

A spreading, evergreen tree eventually reaching to 20m tall but more usually reaching a height of around 10m in cultivation. Glossy, dark green, lanceolate leaves are strongly aromatic. Small clusters of creamy-yellow flowers in late spring may be followed by oval fruits to 2.5cm long ripening from green to purple

Position

Full sun

Soil Types

Chalk, Clay, Loam, Sand

Max Height

Higher than 12 metres

Max Spread

wider than 8 metres

Size

Time to Maturity
20–50 years
Max Spread
wider than 8 metres
Max Height
Higher than 12 metres

Growing Conditions

Chalk Clay Loam Sand
Moisture
Well–drained
pH
Acid or Alkaline or Neutral

Position

Full sun
Aspect
South–facing or West–facing
Exposure
Sheltered
Hardiness
H4
Drought Resistance
Yes

Colour & Scent

Fragrance Foliage
Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Lauraceae
Native to GB/Ireland
No
Foliage
Evergreen
Habit
Spreading branched
Genus
Name Status
Correct
Plant Range
NW North America

How to Grow

Cultivation

Grow in any fertile, well-drained soil in full sun; provide shelter from strong, cold winds when young

Propagation

Propagate by seed or by semi-hardwood cuttings

Suggested planting locations and garden types

  • City and courtyard gardens
  • Mediterranean climate plants
  • Patio and container plants
  • Low Maintenance

Pruning

Pruning group 1

Pests

Generally pest-free

Diseases

Generally disease-free