Re: [nafex] Jujube

Thanks, Richard.

For the record is it low or high humidity that prevents them from
setting fruit? We have very low humidity.

Regards,

Jay

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On 12/28/2016 9:37 PM, Richard Moyer wrote:
> Jay,
> Here in the S. Appalachians, our jujubes survive Zone 5 freezes without top
> injury. Our trees are Li, Lang, and several from Norris Dam near
> Knoxville. We always get fruit, once the trees finally started bearing.
>
> We've had -14 F, also -17-19 F without winter injury to twigs or limbs.
> But our winters are the wettest time of year.
>
> As for ripening, our frost free season can be as little at 3rd week May to
> 3rd week Sept between killing frosts. We always get fruit. We don't have
> many days in the 90s, and temps at night are in the low-mid 60s for much of
> the summer.
>
> For context, figs don't normally ripen until late August, into September.
> And A. arguta kiwi don't have enough heat to ripen some years, so we pick
> them early before the first hard freeze.
>
> So in our experience, jujubes have never had winter injury, nor suffered
> from late spring freezes. And they don't need lots of heat to ripen
> either, compared to some other fruits we grow.
>
> In many part of the world, jujubes are picked and eaten before they turn
> brown, also picked early and dried. So if you get an early freeze on year,
> you can pick them earlier than normal and refrigerate them if you don't
> want to dry them all. They keep very well, whether fresh and chilled, or
> dried.
>
> I read some years ago that humidity during pollen shedding is a major
> factor in good fruit set. We have a tree that blooms profusely but sets no
> fruit, even though blooming near several other types that do fruit each
> year. So if trying some out, I would plant several, preferably some known
> to fruit in areas similar to your climate.
>
> Roger Meyer is a source in Calif, with a climate perhaps similar to yours.
>
> Richard Moyer
> Russell County, SW VA
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