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Shrubs

Fremontodendron californicum

A vigorous, semi-evergreen shrub to 6m tall, with rounded, lobed, dark green leaves. From late spring to early autumn it produces yellow flowers to 6cm across

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Plant nurseries
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Ultimate height

4–8 metres

Time to ultimate height

10–20 years

Ultimate spread

2.5–4 metres

Chalk

Clay

Loam

Sand

Moisture

Moist but well–drained, Well–drained

pH

Acid, Alkaline, Neutral

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Full sun

Aspect

South–facing or West–facing

Exposure

Sheltered

Drought resistance

Yes

Hardiness
Hardiness ratings
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
H1a: under glass all year (>15C)
H1b: can be grown outside in the summer (10 - 15)
H1c: can be grown outside in the summer (5 - 10)
H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
H4: hardy through most of the UK (-10 to -5)
H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
H6: hardy in all of UK and northern Europe (-20 to -15)
H7: hardy in the severest European continental climates (< -20)

Botanical details

Family: Malvaceae
Native to GB / Ireland: No
Foliage: Semi evergreen
Habit: Bushy
Potentially harmful: Humans/Pets: Skin/eye irritant. Wear gloves and other protective equipment when handling For further information and contact numbers regarding pets, see the HTA guide to potentially harmful plants
Genus: Fremontodendron are vigorous evergreen shrubs with scurfy young shoots and palmately lobed leaves, and bright yellow flowers appearing over a long period in summer and autumn
Name status: Correct
Plant range: California, W Arizona, N Baja California

How to grow

Cultivation

Grow in poor to moderately fertile, well-drained soil in full sun

Propagation

Propagate by greenwood cuttings in early summer or semi-ripe cuttings in late summer

Suggested planting locations and garden types

Low Maintenance
Climber and wall shrubs
Wall side borders

Pruning

See pruning group 1, or group 13 if wall-trained

Pests

Generally pest-free

Diseases

May be susceptible to Phytophthora root diseases and honey fungus

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