07 July 2013
Blueberries, decaf
As is often recommended, I've been fertilizing my blueberry bushes with coffee grounds. Twice yearly, in early Spring and Fall, for about seven years. Wow. I just realized I planted those bushes seven years ago! Time, whoosh!
Last year I noticed the berries seemed to be getting more and more tart each year, losing not only sweetness but any true blueberry flavor. I decided to experiment with stopping the coffee grounds.
So, I skipped the coffee in Fall 2012 and Spring 2013. And, interestingly, the berries do seem sweeter this year. It's hard to say though because we've also had odd weather -- an excessively wet spring, followed by a sudden shift to unusually hot (90+) weather.
Is it lack of coffee, or the extra water followed by extra heat that caused the sweetness?
Can't say, but I think will continue the no coffee rule at least through the next growing season.
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