pruning aronia

margi1533(z8WA)February 22, 2010

I have a line of 4 Aronia arbutifolia 'Brilliantissima' plants that I love for their gorgeous fall color, carefree health, and fruit (we use a Finnish steam-juicer to make trouble-free, no-stem-removing-needed juice out of the berries, which we mix with apple juice) ... but last year the berries were not as numerous as in years past.

The only pruning I've done with these plants has been pretty minor, trying to keep them at a height of about 6 feet and not letting them get too wide (because I have a raised bed garden nearby). The main stems are now about an inch to an inch and a half wide, with just a couple of newer, much more narrow stems coming up - which I leave or pull out, depending on whether on not they'll be in the way...

Should I be doing any more pruning than this? The plants are very healthy looking; any idea why fruit production was down this past summer? (We still got enough to make a couple gallons of juice, but the yield was nothing like the year before.)

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denninmi(8a)

I don't know if they get old and less productive as many shrubs do. Mine is only about 8 years old now, so just coming into it's full size.

But, I noticed the same thing -- a big crop in 2008, and smaller crop in 2009. I assumed this was just natural, as many plants are what is known as "alternate bearing" -- the energy it requires to produce the big crop diminishes the plant's ability to develop nascent flower buds for the next years crop.

    Bookmark   March 1, 2010 at 3:38PM
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