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METROSIDEROS robusta
Commonly known as Northern rata
The hardiest of all the metrosideros which grew at Caerhays for many years. Coppery-scarlet flowers. Much more tender when young as those who have pinched seedlings from Tresco discover to their cost
Plant Details
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Floweringlocal_floristJanlocal_floristFeblocal_floristMarlocal_floristAprlocal_floristMaylocal_floristJunlocal_floristJullocal_floristAuglocal_floristSeplocal_floristOctlocal_floristNovlocal_floristDec
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Exotic plants
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Good to knowA huge tree in its native New Zealand growing to over 100ft
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Pests & DiseasesScale insects can be a problem under glass.
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Place of originNew Zealand
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EvergreenLeaves 2.5-5cm (1-2in) long, dark green above and hairless and paler beneath
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RedCoppery red
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Tender (greenhouse & conservatory)
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Entire
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Elliptic
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Ovate
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HeightTo 30m (100ft)
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SpreadTo 12m (39ft)
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Tall ShrubOr freely branching small tree. Produces flowers 3cm (1¼in) long with crimson filaments and yellow anthers in dense, terminal cymes.
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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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Autumn Seasonal Interest
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Spring Seasonal Interest
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Summer Seasonal Interest
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Winter Seasonal Interest
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Mature Sizeto 30m (100ft)
to 12m (39ft)
Planting Tips and Care Advice
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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
Fertile moist well-drained soilModerately fertile. Humus-rich
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Sun Requirements
Full sun
Metrosideros - Growing Guide