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PROTEA Leucadendron argenteum
Commonly known as Cape silver tree
Soft shiny silver leaves with velvety hairs and silver cone-shaped flowers. Endangered in the wild in South Africa
Further Reading....
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EvergreenLeaves 10-15cm (4-6in) long, yellowish-green on males and greenish-silver on females.
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GreenGreenish white or silver
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Height6-10m (20-33ft)
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Spread2-4m (6½-13ft)
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TreeErect, pyramidal to columnar small tree. Smooth, grey bark with distinctive horizontal leaf scars. Produces spherical flowerheads to 4cm (1½in) across, yellowish green on male trees, greenish silver on female, surrounded by lustrous bracts to 2cm (¾in) long. The silvery cones persist for several years.
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Heated greenhouse - warm temperateCan be grown outside in summer. Plant can withstand temperatures down to 5°C (41°F)
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Full sun
PROTEA Leucadendron argenteum
- Details
- Description
- Mature Size
- Tips and Advice
- Goes Well With
- Planting Combinations
- Other Suggestions
- See Also...
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Additional FeaturesEndangered in the wildThese plants are listed on the International Union for Conservation of Nature's list of 'Red Plants'. This is a list of threatened species in the wild, they are either critically, endangered or vulnerable to extinction.Pests & DiseasesRed spider mites, under glass.Place of originSouth Africa (Northern Cape, Western Cape, Eastern Cape)Resistant to honey fungusThese plants have little or few problems with honey fungus.
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Garden Location/ConditionsGreenhouse / conservatoryNot the sort of plants to be grown outside where there are likely to be frosts. These plants need to be grown in a conservatory or cool greenhouse or at least brought inside for the winter
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HardinessTender (greenhouse & conservatory)
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Pruning groupPruning 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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Seasonal InterestSpringSummer
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Soil ConditionsAcid / ericaceous lovingFree draining sandy soilLight, gritty soil. Will not tolerate cold, wet soil.
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Tree ShapeBroadly conical
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Protea - Care Guide
Trees - Care Guide
- How to plant a tree - Video Tip ondemand_video
- How to plant a tree
- Ties - Video Tip ondemand_video
- Restaking fallen young trees - Video Tip ondemand_video
- Fallen old tree - Video Tip ondemand_video
- Clearing up fallen beech tree - Video Tip ondemand_video
- Spring pruning - Video Tip ondemand_video
- Removing side shoots - Video Tip ondemand_video
- Pruning and Shaping Magnolia - Video Tip ondemand_video
- Deer protection - Video Tip ondemand_video
- Weed Spraying - Video Tip ondemand_video
- Removing Ivy - Video Tip ondemand_video
- Removing wire protection - Video Tip ondemand_video
- Tree Survey - Video Tip ondemand_video
- Crown uplift - Video Tip ondemand_video
- Removing shoots below graft - Video Tip ondemand_video
- Removing peeling bark - Video Tip ondemand_video
- Maintaining variegation - Video Tip ondemand_video
6-10m (20-33ft)
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2-4m (6½-13ft) |
Useful extras...
Fertilisers & Feeds - Empathy
Afterplant - Grow Your Own
AFTER PLANT GROW YOUR OWN seaweed is ready to use liquid concentrate that was specially formulated be used on all edible plants.
Only £8.00
Fertilisers & Feeds - Empathy
Afterplant - Tomatoes
AFTER PLANT TOMATO FEED Liquid Concentrate with Bio stimulant is a high potash liquid concentrate containing seaweed extract, plant derived amino acids and other nutrients specifically formulated to benefit tomatoes and greenhouse plants.
Only £8.00
Fertilisers & Feeds - Empathy
Rootgrow mycorrhizal fungi
Recommended by the RHS. Contains Rootgrow™ mycorrhizal fungi. Suitable for all trees and shrubs (except rhododendrons, azaleas, heathers, cranberries and blueberries)
3 options from £3.00
Fertilisers & Feeds - Empathy
Rootgrow Ericoid mycorrhizal fungi
This specially adapted Rootgrow™ mycorrhizal fungi will boost the growth of acid-loving plants like rhododendrons, azaleas, heathers and blueberries.
It contains ericoid and arbuscular mycorrhizal fungi, which are found in poor acidic soils where ericaceous plants naturally grow.
Only £7.50
Fertilisers & Feeds - Empathy
All-purpose Seaweed Stimulant
All-purpose organic concentrated seaweed feed that is a ready to use, derived from sustainable harvested kelp, that can be used on all outdoor and indoor plants, except acid loving plants.
Perfect used in conjunction with Rootgrow™.
Only £7.50
Fertilisers & Feeds - Vitax
Blood, Fish & Bone
Improves vegetable, fruit and flower quality. Blood, Fish and Bone
contains three major nutrients essential for strong and healthy growth.
Only £6.00