Thursday, June 22, 2017

Shiro Plum Cross Pollination

Shiro plums are delicious. They are self pollinating but I've noticed that for 2yrs in row the production for this tree has been abysmal. I do have an italian plum tree but it's across the entire yard and not an compatible pollinator for the Shiro. I may have to pick up another variety to help it with the cross pollination and increase the yield. Most likely the Methley Plum.

For cross-pollination, trees must bloom at the same time or have overlapping bloom periods. "Redheart," "Early Golden," "Ozark Premier" and "Methley" cultivars pollinate Shiro plum trees. "Methley" is a low-chill-requirement plum tree with hardy blossoms, making it compatible with Shiro plum in mild-winter locations. "Starking Delicious" is a registered cultivar that shares the same bloom period and cultural requirements as Shiro plum, making this tree a suitable pollinator for Shiro plum. Because these plum trees are all cultivars of the Japanese plum, Prunus salicina, according to the definition of Lerner and Hirst, Shiro plum is self-fruitful. In this case "self" refers to the species, not the particular cultivar. Although a single tree may set a small crop of fruit, heavier crops result from pollination by another cultivar.

Update 6/29/17

I picked up a Satsuma to pollinate my shiro and a green gage plum to pollinate my italian. I also picked up a Lapins Cherry to pollinate my Bing.

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