Satsuma Plum Care: Learn About Japanese Plum Growing

japanese plum
Image by pelican

By Amy Grant

Adaptable, reliable producers, compact in habit and minimally maintained compared to other fruit trees, plum trees are a welcome addition to the home garden. The most common variety grown worldwide is European plum, which is primarily turned into preserves and other cooked products. If you want a juicy plum to eat right off the tree, the choice is most likely a Satsuma Japanese plum tree.

Japanese Plum Information

Plums, Prunoideae, are a sub-member of the family Rosaceae, of which all stone fruits such as peachcherry and apricot. As mentioned, Satsuma Japanese plum tree produces fruit that is most commonly eaten fresh. The fruit is larger, rounder and firmer than its European counterpart. Japanese plum trees are more delicate as well and require temperate conditions.

Japanese plums originated in China, not Japan, but were brought to the U.S. via Japan in the 1800’s. Juicier, but not quite as sweet as its European cousin, ‘Satsuma’ is a large, dark red, sweet plum prized for canning and eating right off the tree.

Japanese Plum Growing

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Satsuma Japanese plums are fast growing, but not self fertile. You will need more than one Satsuma if you want them to bear fruit. Good choices for companion pollinating plum trees are, of course, another Satsuma or one of the following:

  • “Methley,” a sweet, red plum
  • “Shiro,” a large, sweet vibrantly yellow plum
  • “Toka,” a red hybrid plum

This plum varietal will reach a height of about 12 feet. One of the earliest blooming fruit trees, it flowers in late winter into the early spring with a multitude of aromatic, white blossoms. You will need to select a full sun area, which is large enough to accommodate two trees. Japanese plum trees are frost sensitive, so an area that lends them some protection is a good idea. Japanese plum growing is hardy to USDA growing zones 6-10.

How to Grow Satsuma Plums

Prepare your soil as soon as it is workable in the spring and amend it with plenty of organic compost. This will aid in drainage and add necessary nutrient into the soil. Dig a hole three times larger than the root ball of the tree. Space the two holes (you need two trees for pollination, remember) about 20 feet apart so they have room to spread.

Position the tree in the hole with the top of the graft union between 3-4 inches above ground level. Fill the hole in halfway with soil and water in. Finish filling in with soil. This will eliminate any air pockets around the root system. Mound the filled soil in around the top of the root ball and tamp down with your hands.

Water with a drip irrigation system which will ensure it gets a deep, thorough watering. One inch of water per week is sufficient in most weather; however, in warmer weather you will need to water more often.

In the spring, fertilize with a 10-10-10 food and then again in the early summer. Simply sprinkle a handful of fertilizer around the base of the plum and water in well.

Don’t go nuts on the pruning in the first couple of years. Allow the tree to reach its mature height. You may want to prune any branches that cross in the middle or grow straight through the center of the tree to increase aeration, which allows for better fruit set as well as easier picking.

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