Environ. Horticulture, Pears, Cherries, and Viticulture
University of California
Environ. Horticulture, Pears, Cherries, and Viticulture

Update on Nursery Chill Oct 23

Thanks to Doug Thomas of Crown Nursery, I'm able to see how the plants are changing as the weather cools up at MacDoel.  This is a picture of Monterey close to the field of my original post.

 

Total chill between 33 and 45 degrees accumulation to this date Oct 23, 2020: 329 hrs, with 372 + 123 hrs over 60 degrees.

In comparison, chill accumulation in this range by Oct 15 was 267 hours, with 324 + 123 hrs over 60 degrees.

In short, warm temps during the day are diminishing rapidly at the same time that chill hours between 33 and 45 are increasing.  I think we are seeing that here with some change to the aspect of the plants.  This is very good news.

Monterey, MacDoel, Oct 22, 2020. Some change to plants visible as they enter dormancy.  Photo courtesy Doug Thomas, Crown Nursery
Monterey, MacDoel, Oct 22, 2020. Some change to plants visible as they enter dormancy. Photo courtesy Doug Thomas, Crown Nursery

Posted on Saturday, October 24, 2020 at 10:03 AM

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