Enough chill after all?

On this Tu Bi-Shvat, there is much to celebrate as the fruit trees begin a new year. With the very hot January (or perhaps I should say most of Tevet and of Shvat’s first half) I had feared we would be too far behind in chilling accumulation for many of the deciduous fruit trees to bloom adequately.

It is still early spring (and today it feels rather wintry), but the signs are already very encouraging. The Mesch Mesch Amrah plumcot, which is always one of the harbingers of the bloom season, is now covered in blooms. A few blooms are now open on the Flavor Delight Aprium and Minnie Royal cheery. These all have quite low chilling requirements (300 or less?), especially the Minnie Royal, so their blooms are perhaps not especially indicative of significant chilling having been received. However, several moderate-chill (over 400 hours?) varieties are also showing bud swell, including the Autumn Royal apricot (usually a later bloomer), and the Moorpark apricot. Others that have chilling requirements most likely in the 300-400 range are also showing significant bud swell, including Newcastle, Katy, Royal Blenheim, Royal Rosa, and Shaa Kar Pareh (!) apricots and the Flavor King, Flavorosa, and Dapple Dandy pluots, as well as the Flavorella plumcot.

That concentrated chill in the second half of December/Kislev may have produced more chilling hours than I had dared to believe.

All in all, a good way for the trees (and their keeper) to start the new year!

As for Tu Bi-Shvat, with rain having washed out the trail, our shul’s annual ‘walking seder’ for the day was canceled, but the rabbi suggested we all hug a tree and eat dried fruits and nuts for the occasion. And my thought was, for that we need an occasion? Baruch ata Adonai, bo-rei p’ri ha-eitz! Now pardon me while I complete the blessing by enjoying some dried Royal Rosa or Shaa Kar Pareh from last season…

One thought on “Enough chill after all?

  1. Hi, I am curious how your fruit yield has been on your Moorpark through the years. You mention it being the best, but it also has pretty high chill requirements. I am going to try to grow it in Inland San Diego (I am told that will not work but I have to try for myself).

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