Plants by mail order since 1984, over 4100 plants online today!
PERSICARIA alpina
Commonly known as Alpine knotweed
(syn. P. polymorpha) - tall growing with tall stems or plumes of creamy-white flowers
Further Reading....
- Details
- Description
- Mature Size
- Tips and Advice
- Goes Well With
- Planting Combinations
- Other Suggestions
- See Also...
-
Deciduous - linear to narrowly lance-shaped leaves to 15cm (6in) long on stalks 1cm (½in) long
-
White - creamy white -
Height - to 1.8m (6ft) -
Spread - to 1.5m (5ft)
-
Bulb/Corm or rhizomatous perennial - erect, clump-forming rhizomatous perennial, many branched from the middle upwards. Produces spikes of cup- to funnel-shaped flowers to 15cm (6in) long
-
Herbaceous - Early in the year, typically January till end of March, herbaceous plants might be supplied in 9cm pots to ensure timely despatch.
-
Hardy - very cold winter - Hardy in all of UK and northern Europe. Plant can possibly withstand temperatures down to -20°C (-4°F) -
Full sun -
Partial shade -
Additional Features - Good to know - - also known as Polygonum alpinum acc. to RHS in the AtoZ (height and spread to 1m) and also Persicaria polymorpha by the RHS online (height and spread 2m x 1.5m) -
Pests & Diseases - none -
Place of origin - Eurasia -
Resistant to honey fungus - These plants have little or few problems with honey fungus.
-
Hardiness - Fully hardy -
-
Seasonal Interest - Summer -
-
Soil Conditions - Tolerates all - - any moist soil
-
Wildlife - Rabbit Resistant -
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Herbaceous Plants - Video Collection
- Dividing Herbaceous Perennials - Video Tip ondemand_video
- Spring Planting Osteospermums - Video Tip ondemand_video
- Dividing Summer Perennials - Video Tip ondemand_video
- Dividing summer flowering Hemerocallis - Video Tip ondemand_video
- Summer propagation - Video Tip ondemand_video
- Self-seeding aquilegia - Video Tip ondemand_video
- Supporting Plants - Video Tip ondemand_video
- Dead heading meconopsis - Video Tip ondemand_video
- Dead heading Delphiniums - Video Tip ondemand_video
- Feeding herbaceous peonies - Video Tip ondemand_video
|
to 1.8m (6ft)
|
|
|
|
to 1.5m (5ft) |
ERYNGIUM bourgatii 'Picos Blue'
Sea holly
Available from £12.50
MONARDA 'Prairie Night'
Available from £11.50
PERSICARIA
(Polygonum) - Knotweed
PERSICARIA amplexicaulis 'Blackfield'
Knotweed
Available from £12.50
PHLOX paniculata 'Chattahoochee'
Border phlox
Available from £12.50
SALVIA 'Embers Wish'
Available from £12.50
SEDUM spectabile 'Brilliant'
Ice plant
Available from £11.50
Share this page
