SoCal Cherry Rootstock Question

Kippy(SoCal zone 10. Sunset Zone 24)October 27, 2013

I am planning my bareroot purchases and wondered if anyone had experience with two of the rootstocks

Z-Dwarf (the newly renamed most dwarfing rootstock)
Colt.

Is Z-Dwarf as precocious as Colt? What about fruit set?

I am hoping for double duty out of a pair of cherry trees, fruit and some shade. They will be planted on the lower side of a retaining wall about 4 feet lower than the house. Reading that colt can be 20-30 feet tall, that is taller than I want, but 12 feet on Z-Dwarf might be a tad low.

Any thoughts?

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fruitnut Z7 4500ft SW TX

The Z dwarf will induce fruiting earlier than Colt but won't likely get tall enough to shade a house. I'm holding my cherries on Z easily to 6ft and could go even smaller.

    Bookmark   October 27, 2013 at 2:11PM
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Kippy(SoCal zone 10. Sunset Zone 24)

Are you doing much pruning to hold at 6 feet or is that about where they want to be?

    Bookmark   October 27, 2013 at 10:08PM
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fruitnut Z7 4500ft SW TX

A lot depends on growing conditions. You could probably get them to 10-12ft but it could be 8-16ft as well. No I'm not pruning much. One is pretty vigorous but most are puny.

    Bookmark   October 28, 2013 at 10:32AM
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econ0003(10a CA / 8b CA)

I am inland San Diego with heavy DG soil. I have two four year old cherry trees on colt. I keep mine around eight feet with a single light pruning in the summer.

The hot dry summer and heavy soil keeps them in check. Not much growth occurs after June. Colt may get to 20-30 feet under the right conditions. No way they would get that big in my yard even without pruning.

Mine haven't been very precocious. This was the first year they set more than a few fruit. Maybe a 100 or so.

    Bookmark   October 29, 2013 at 12:27AM
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