B and T World Seeds' reference number:
The average, annual, minimum temperature zone where Polygonum cuspidatum is cold hardy
USDA Zone:4 -30° to -20°F (-34.5° to -29°C)
|Type of plant - deciduous shrub
Flower or inflorescence:
CREAM-WHITE, in 9cm.panicles
3 sided achene, 4mm.
broad ovate, to 12x10cm.
|Height, in meters: 2
Height, in feet: 6.60
|Polygonum cuspidatum seeds may be subject to seasonal availability
Synonyms (alternative names) for Polygonum cuspidatum:
Common names for Polygonum cuspidatum:
|Itadori, Japanese Fleeceflower, Japanese Knotweed, Mexican Bamboo, Pan chang,|
is included in the following
B and T World Seeds flowering plant categories.
|We are looking for seeds from this plant, if you know where we can find seeds or would like to be told when we have a source, please let me know.|
|40||: Shrub Seed List, Hardy and Tender|
|50||: Japanese Native and Introduced Plants|
|51||: Chinese Native and Introduced Plants|
Some knowledge about growing from seed is necessary to germinate even the easiest seeds.
Most seeds require humidity to germinate, even desert plants like
require that their growing medium remains moist until germination.|
Most seeds require oxygen to germinate, if buried too deep in their growing medium, or if the medium is too wet,
the seeds may not get the oxygen they require.
Polygonum cuspidatum seeds will usually germinate in 21-60 days, even under good conditions germination may be erratic.
Do not overwater