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Cold Hardy Citrus / Re: F2 citrange winter hardiness trial
« Last post by Ilya11 on Today at 03:54:32 AM »Do not have much experience with its open pollinated seedlings, but in crosses occasionally there are some deciduous plants.
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I have had good luck with getting cold-hardy avocado scions from Really Good Plants. It says under shipping info that you can't check out on their website for international orders, but to email them about it and they might be able to accommodate it.
I'd recommend their Royal-Wright variety along with Duke, maybe Aravaipa (vigorous tree, mediocre fruit quality). So far Royal-Wright is the one that has had almost 100% of grafts take, Aravaipa a close second. None of my Second Red grafts took, but it looks like that's not in stock anyhow. I just got my Duke scions this week so can't give success rates. Here's the blog post where they give descriptions and photos of the varieties they offer.