They can be kept in pots for their first 2 or 3 years ( but the pot has to be at least 10 litres or so). They need alkalis soil ( lime it if need be) plus fertile. Have you check out if they need cross pollinations ? some hardy/mini kiwi need at least 2 plant for fruit production but the Issai don't need.
What colour are your hardy/mini kiwi Veg ?

Momol

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