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Characteristics: Deciduous vine to 15 m
Seeds per packets: 5
A vigorous climber with gorgeous glossy deeply lobed dark green leaves which turn spectacular shades of red-purple in autumn.
It will quickly romp along a large north or east-facing wall. An attractive vine that requires plenty of space or regular pruning.
Originates from Japan and China.
Prefers a light to medium well-drained soil in an open sunny position, frost resistant but drought tender.
Cold stratification is recommended for this species. This can be replicated by cold stratification in the refrigerator or alternatively over wintering in the garden in cold climates will assist germination.
Cold treatment may not critical for germination to occur but should give increased germination rates.
Seed are best sown in spring. The optimum germination temperature for germination is around 18-22°C
General note: Seeds of many plants are dormant and require specific conditions or pre-treatment for germination.
Do not be too hasty to discard seed that does not germinate, seeds will often lay dormant until the conditions are similar to their natural requirements for germination to occur. Containers put to one side will often surprise long after they were discarded.