Citrus ID needed

RI-MikeMay 8, 2013

So I "inherited" this tree from a family member as the rescued it from a big box store. I was told it was a kumquat, but no way of telling what it is until it fruits. It has tripled in size since I got it in the fall as I kept it under a 400W MH grow light and fed it foliage pro all winter. Any opinions on what this is?

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Here's an up close of the leaves, the trunk does have thorns.

    Bookmark   May 8, 2013 at 7:48AM
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Here is the base. Not sure what to think here, could the dead part be the tree and the green growth be rootstock? I have not found any graft line and before I pot this thing up with a new mix, I want to make sure its worth the effort of keeping it around.

    Bookmark   May 8, 2013 at 7:49AM
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That's all rootstock!
The original variety is the dead stump, with the original graft line just below where the dead twigs join the stump.
You are growing a trifoliate hybrid - probably a citrange or citrumelo. While it will never give you very edible citrus fruits, it is an interesting plant which will survive much more frost than a normal citrus. Depending on your zone, it might be possible to grow outside and will eventually produce ornamental fruits.

    Bookmark   May 8, 2013 at 11:24AM
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Thanks, and I was afraid of that. Not worth keeping around as it wont survive outside in this zone.

    Bookmark   May 8, 2013 at 11:31AM
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You could always graft something else in. I'm sure there's plenty of people around your area with budwood.

    Bookmark   May 8, 2013 at 11:38AM
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hoosierquilt USDA 10A Sunset 23 Vista CA

Actually, Mike, it probably would survive in zone 7. Citrange has been growing similar cultivars in his zone successfully. They do make a very pretty ornamental tree, btw. And, you can use it for rootstock grafting as well. I would say keep it, plant it outside in the warmest, most protected area of your home and see how it does.

Patty S.

    Bookmark   May 8, 2013 at 5:22PM
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Dave in NoVA • 7a • Northern VA

Plant that thing outside! You never know.

Some of us are growing Citrandarin and Citrumelo in the ground here in the DC area. Citrange should do OK too.

    Bookmark   May 14, 2013 at 3:17PM
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