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PROTEA Banksia serrata
Commonly known as Old man banksia, Red honeysuckle, Saw banksia, Saw-toothed banksia
Serrated leaves and yellow-green flowers
Plant Details
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Floweringlocal_floristJanlocal_floristFeblocal_floristMarlocal_floristAprlocal_floristMaylocal_floristJunlocal_floristJullocal_floristAuglocal_floristSeplocal_floristOctlocal_floristNovlocal_floristDec
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Pests & DiseasesPhytophthora root rot. Plants will become chlorotic if soil contains too much phosphate or lime
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Place of originAustralia (New South Wales, Victoria)
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Resistant to honey fungusThese plants have little or few problems with honey fungus.
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EvergreenAlternate, narrowly oblong, toothed leaves 8-15cm (3-6in) long, downy and light red or reddish brown at first, then leathery, smooth and semi-glossy, deep green
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YellowYellow-green
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Half hardy (down to 0)
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Serrate
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Oblong
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Height3-20m (10-66ft)
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Spread2-8m (6½-26ft)
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Tall ShrubErect, then spreading, shrub or tree. Produces cylindrical flower heads 9-15cm (3½-6in) long
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Tender - cool or frost free greenhouseTolerant of low temperatures, but not surviving being frozen. Except in frost-free inner-city areas or coastal extremities requires glasshouse conditions. Plant can withstand temperatures down to 1°C (34°F)
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Will grow outside in milder locationsThis could include plants which would survive happily in a greenhouse or conservatory if not in a mild location. If you have a sheltered spot in your garden then it may do well here.
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Autumn Seasonal Interest
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Summer Seasonal Interest
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Mature Size3-20m (10-66ft)
2-8m (6½-26ft)
Planting Tips and Care Advice
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Garden Location/Conditions
Australian / New ZealandCoastal / windsweptSuitable for coastal areas
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Pruning group
Pruning group 1Suitable for: Deciduous and evergreen trees, and some deciduous shrubs.
Pruning: Minimal pruning required. Prune wayward or crossing branches to maintain a healthy framework.
When: When dormant in the late winter/early spring. Some in the summer/autumn to prevent bleeding of sap.
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Soil Conditions
Free draining sandy soilNeutral to acid soilWell drained, dry, poor to moderately fertile soilPoor soil
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Sun Requirements
Full sun
Protea - Care Guide