Answer: Fallopia japonica 'Variegata' is a member of the Polygonaceae family. Its common name is Variegated Japanese Knotweed. This plant has white and green mottled leaves; white flowers; blooms in late summer; and can be invasive.
Because this plant spreads by underground rhizomes, being contained in a pot will keep it from escaping cultivation, but may also hinder its natural growth habit. This stress can affect the growth and appearance of the foliage. If it were mine, I'd keep it in a pot to keep its growth under control, but I'd move it up to a slightly larger pot to keep the root system happy. Best wishes with your Fallopia
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