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Climber Wall ShrubConservatory Greenhouse

Bougainvillea 'San Diego Red'

bougainvillea 'San Diego Red'

a cultivar with pinkish-red bracts. It can tolerate lower temperatures than many other Bougainvillea cultivars

Synonyms

Bougainvillea 'Hawaiian Scarlet'
Bougainvillea Scarlett O'Hara

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Ultimate height

8–12 metres

Time to ultimate height

2–5 years

Ultimate spread

2.5–4 metres

Loam

Sand

Moisture

Well–drained

pH

Alkaline, Neutral

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Full sun

Aspect

West–facing or South–facing

Exposure

Sheltered

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: Nyctaginaceae
Native to GB / Ireland: No
Foliage: Semi evergreen
Habit: Climbing
Genus: Bougainvillea are scandent evergreen shrubs, sometimes thorny, with simple ovate leaves and clusters of small tubular flowers each enclosed by 3 showy, brightly coloured ovate bracts
Name status: Accepted

How to grow

Cultivation

Under glass grow in peat-free, loam-based potting compost in full light; water freely in summer and keep just moist in winter. Apply a balanced liquid fertiliser monthly. If container grown can be put outside in summer. Water sparingly in winter. May survive short spells down to 0°C if kept fairly dry, but preferred minimum temperature is 7-10°C. See bougainvillea cultivation

Propagation

Propagate by semi-hardwood cuttings in summer or softwood cuttings in early spring. Layering can be done in early autumn or spring

Suggested planting locations and garden types

Patio and container plants
Sub-tropical
Wall side borders

Pruning

Pruning group 12 in early spring/after flowering

Pests

May be susceptible to glasshouse whitefly, mealybugs, aphids and glasshouse red spider mite

Diseases

Generally disease-free

Get involved

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