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it needs to be old enough, big enough, water sunlight fertilization and pollination from a different plum tree via bees Different plumcots have different specific pollinators. In addition to plums Goldkist and other apricots will cross polinate. The Santa Rosa plum tree and Burgundy plum tree are good pollinators as well.
This cultivar usually begins to decline after about 20 years and has a relatively short life span of about 35 years.
it could
You dig a hole and put the plum tree into it.
It may be aphids.https://www.gardeningknowhow.com/edible/fruits/plum/common-plum-tree-pests.htm
In a plum tree.
The Sugar Plum Princess
spraying a plum tree with what? against what pest/disease?
No.
Yes, but there is no guarantee tou will get a tree with worthwhile plums.
A Plum tree.
The Sugar Plum Princess