Green Doug Fir cones dropping by the thousands

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Well, the douglas fir tree in our yard just abruptly stopped the early morning drop of green cones about a week ago. We filled up about half of our large yard waste bin with the cones before the drop ended. Now just a few mature cones are falling at odd times, and the green cones on the ground that we missed in the pick-up are turning brown.

Have noticed other doug firs, e.g. in parks on the Oregon coast, have dropped lots of cones, so it must have been an abundant cone year. Our doug fir likely just produced too many cones to keep on the limbs so had to drop some when they got too heavy. Still don't know why it happened in the morning.

We do have several Japanese and vine maple trees in the yard, though the squirrels are probably satiated with the critter mix seeds we put out.

Re: bunya bunya tree we saw one of those in New South Wales on a 2011 trip to Australia, and were cautioned about the huge cones. Australia has as much weird and wonderful flora as it does fauna.
 

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