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DNR question of the week: Ash trees producing seed; is this weather related?

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DNR question of the week: Ash trees producing seed; is this weather related?
Alexandria Minnesota 225 7th Ave E
P.O. Box 549
56308

Question: The ash trees in my yard are producing a lot of seeds this year, more than in previous years. How unusual is this? Is it weather related?

Answer: Trees produce large amounts of seed for a couple of reasons. Trees under stress from drought, soil compaction, or planting "off-site" may produce more seed to ensure another generation.

Weather can also impact the number of seeds a tree produces. Ash are wind-pollinated, so if there are heavy rains during flowering, pollen is unable to travel by wind, and seed set and production can be reduced.

In some species of trees, heavy seed production occurs normally every few years.

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