Shiro Plum Tree Overview
The Shiro plum tree is a Japanese plum variety which is one of the fastest growing and most prolific, doubling its yield every year for the first five years. In fact, these trees produce delicious golden-yellow plums with radiant white flowers in the spring. Not only is the fruit large with delicious juicy, clingstone, sweet flesh, but it is also perfect for canning as well as eating off the tree. If you would like to cook with them, they are great for tarts and pies.
Moreover these plums will ripen midseason around late July to early August. In fact, Luther Burbank, a legendary horticulturist developed this variety in Burbank California and introduced it commercially in 1899. Contrary to their name, Japanese plums actually originated in China. They were then brought to the US through Japan in the 1800’s. Compared to the European varieties, Japanese varieties are juicier, and not quite as sweet.
Just like any other plum tree, the Shiro plum tree grows best in full sun with well-drained, loamy soil. While it can grow well in hardiness zones 5-10, it does especially well in places with cool but not cold winters and long, warm, and dry summers. Additionally, it needs around 400-500 chill hours which are the average hours of air temperature between 32° and 45° F in a typical winter season. When it blooms, it will decorate the landscape with a bouquet of aromatic, white blossoms. If you would like more information on how to plant and grow this tree, see our guide.
- Uses: Eating fresh, canning, cooking, deserts
- Taste: Moderately sweet, little acidity, juicy, firm, clingstone, outstanding flavor
- Size: Medium with a round shape, 2.5 cm diameter
- Color: Golden-yellow sometimes with a pink blush
- Type: Japanese
- Hardiness Zones: 5-10
- Harvest period: midseason around mid July
- Pollination: In order for it to bear lots of fruit, we recommend growing this variety with Santa Rosa Japanese plum tree or with another Japanese variety such as Fortune.
- Cultivation: This plum tree grows best in full sun with loamy well-drained soil with a pH of 6.0-7.0. Additionally Shiro plum trees grow very fast and the yield will double every year for the first 5 years.