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HEUCHERA 'Obsidian'
Commonly known as Alumroot, Coral bells, Coral flower
Glossy reddish-black leaves in spring darkening to near black by summer
Plant Details
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Floweringlocal_floristJanlocal_floristFeblocal_floristMarlocal_floristAprlocal_floristMaylocal_floristJunlocal_floristJullocal_floristAuglocal_floristSeplocal_floristOctlocal_floristNovlocal_floristDec
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Good to knowWoody rootstock tends to push upwards. Mulch annually and lift and replant when necessary in late summer
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Pests & DiseasesLeaf eelworms, vine weevil larvae
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Place of originNorth America
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Evergreen
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Panicles
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Fully hardy
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Black
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Height60cm (24in)
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Spread40cm (16in)
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Ground coverThese plants are typically low growing and spread quickly to inhibit weed growth on areas of bare soil
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HerbaceousEarly in the year, typically January till end of March, herbaceous plants might be supplied in 9cm pots to ensure timely despatch.Vigorous, clump-forming perennial with heart-shaped, deeply lobed leaves to 10cm (4in) long
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Hardy - very cold winterHardy in all of UK and northern Europe. Plant can possibly withstand temperatures down to -20°C (-4°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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Bee friendly
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Rabbit Resistant
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Mature Size60cm (24in)
40cm (16in)
Planting Tips and Care Advice
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Garden Location/Conditions
BorderSuits a mixed or herbaceous border
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Soil Conditions
Fertile moist well-drained soilNeutral soil preferred
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Sun Requirements
Full shadeIn a moist siteFull sunPartial shade
Heuchera - Growing Guide