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PERSICARIA affinis
Commonly known as Knotweed, Polygonum
Deep pink
Further Reading....
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EvergreenDark-green leaves 5-15cm (2-6in) long, turning red-bronze in autumn.
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Shades of pinkAll shades of pink through to Carmine (red)Deep pink -
Height25cm (10in) -
Spread60cm (24in)
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Ground coverThese plants are typically low growing and spread quickly to inhibit weed growth on areas of bare soilCreeping perennial. Produces tight, upright spikes 5-8cm (2-3in) long of small flowers to 5mm (¼in) long. Flowers fade to pale pink.
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Hardy - cold winterHardy in most places throughout the UK even in severe winters. May not withstand open/exposed sites or central/northern locations. Plant can withstand temperatures down to -15°C (5°F) -
Full sun -
Partial shade
PERSICARIA affinis
- Details
- Description
- Tips and Advice
- Goes Well With
- Planting Combinations
- Other Suggestions
- See Also...
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Additional Features
Pests & DiseasesNone
Place of originHimalayasResistant to honey fungusThese plants have little or few problems with honey fungus. -
Flower ShapeCup-shaped5mm (¼in) on spikes 5-8cm (2-3in) longSpikes
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Garden Location/ConditionsBorderSuitable for a mixed or herbaceous borderRockery (inc alpine)
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HardinessFully hardy
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Soil ConditionsTolerates allAny moist soil
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WildlifeRabbit Resistant
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Persicaria - Growing Guide
Buy Varieties of PERSICARIA affinis
PERSICARIA affinis 'Darjeeling Red'
Knotweed, Polygonum
excellent ground cover with bright crimson flowers
Gift-wrapping available
individually £12.50 each , 3+ £11.00 each
Useful extras...
Fertilisers & Feeds - Vitax
Q4 Pelleted Fertiliser
A useful fertiliser suitable for use on a wide variety of plants. Q4 provides all the nutrients and trace elements essential for vigorous growth, abundant flowering and ripening of fruit.
3 options from £6.00
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
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