SelecTree: Tree Detail
Photo Locations: Strybing Arboretum - San Francisco, CA and Santa Cruz, CA
Karo Pittosporum is grown either as a shrub or tree standard. It does well in coastal conditions, but suffers in hot climates. It is fairly drought resistant and tolerates smog and saline soils. It s clean, dense growth makes it attractive, and it is quite durable once established. It may require regularly scheduled light top-trimming (but not necessarily shearing) of vigorous top shoots to maintain its height below 25'. Traditionally used for dye by the Maori people.
Has fragrant Flower.
Native to New Zealand.
Additional Common Names
SEASIDE PITTOSPORUM, STIFFLEAF CHEESEWOOD
Compact and Erect with a Low Canopy.
Rounded or Umbrella Shape.
Has Evergreen foliage.
Height: 15 - 30 feet.
Width: 6 - 15 feet.
Growth Rate: 24 Inches per Year.
Longevity 50 to 150 years.
Leaves Obovate to Elliptic, Gray Green, No Change, Evergreen.
Flowers Showy. Fragrant Maroon. Flowers in Spring. Has perfect flowers (male and female parts in each flower).
Prolific, Mostly Green Capsule, Medium (0.50 - 1.50 inches), fruiting in Summer or Fall.
Bark Light Gray, Smooth.
Shading Capacity Rated as Dense in Leaf.
Litter Issue is Dry Fruit.
Tree Site Conditions & Constraints
Sunset Zones 9, 14 - 17 and 19 - 24.
USDA Hardiness Zones 9 - 10.
Exposure Full Sun to Partial Shade.
Clay, Loam or Sand Texture.
Slightly Acidic to Slightly Alkaline Soil pH.
Salinity Tolerance is Moderate Inland and Good on Coast.
Seaside Tolerance is Good in Moderate Zone.
Pests & Disease Information
Susceptible to Aphids and Scales, Sooty Mold.
Health, Safety & Environmental Concerns
Branch Strength Rated as Medium.
Root Damage Potential Rated as Low.
Allergy Health Hazard.
Fire Resistance is Favorable.
Special Uses & Values
Cite this tree:
SelecTree. "Pittosporum crassifolium Tree Record." 1995-2018. Jun 25, 2018.
< https://selectree.calpoly.edu/tree-detail/pittosporum-crassifolium >
SelecTree Nursery Connection Map
Cal Poly / ESRI