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Tropical Fruit Discussion / Re: My lecture tonight: Making Annona Hybrids
« on: May 10, 2019, 02:46:21 PM »
Going to try my hardest to make it.
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My neighbor just told me that landscapers had heavily mulched her avocado tree (week or 2 ago?), and it quickly died. It was a large tree. The stump is at least 2 feet in diameter. Will try to get more info.
very fresh raw mulch can kill the tree when combined with water. The mulch gets hot, very hot if its fresh wood clippings as its trying to decompose, similar to how compost gets hot. that heat can literally kill plants and trees.
That makes sense. A few years ago, our yard went through a major transformation. We chopped down a bunch of trees (mostly hong kong orchid, 1 large avocado, etc.). The large piles of mulch/clippings smoked noticeably for a couple of days. Steady clouds emanating from the piles. A strange sight.
The landscapers eventually took all of the trimmings, and brought back aged mulch. They have a mini-mountain of mulch from all their jobs. The owner said old mulch was better, but don't recall him saying why. He also owns a private nursery (ornamentals and some fruit trees including rollinia) and seems to know plants well. Must know something is up with fresh mulch.
Sambucus mexicana (also known as S. nigra ssp. caerulea, S. nigra ssp. canadensis, S. caerulea) grow jolly well wild in San Diego. Here's a picture I took on a hike this weekend: .
Native plant nurseries carry it, too. Enjoy