University of Maryland Extension

Phenology

Phenology
 

Depending on your location, Aronia will flower between late April and mid-May. Flowers will persist for about 3 to 7 days. Many species of bees pollinate the flowers but Aronia is apomictic and does not require fertilization for fruit production.

Fruit begins setting and developing throughout June to August. Fruit progressively turns from green to red to purple during this time period. For the most part, the fruit ripens at the same time, with some stragglers.

In Maryland, harvest is usually between the middle and end of August and can be based upon the increasing Brix content of the fruit. There can be a large variation in the Brix (soluble sugar content) of each fruit due to presently unknown factors, possibly environmental. When checking Brix, use several fruit throughout the plant. Check individually or extract juice from several (10) fruit together. Expect between 15% and 18% Brix. Most importantly, the fruit should be harvested before it starts to wrinkle and dry, oftentime this is before maximum brix is attained in the mid-Atlantic.

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