Flower bud is the first sign of growth as plant growth begins in the spring. The flowers begin as tear-drop shaped buds, developing into bell-shaped flowers in clusters of 5 to 10 blooms. Many blueberry varieties have white flowers, but some cultivars have pink blossoms.
Flowering occurs in spring when floral buds swell and open, also referred to as “bud break”. Visible swelling of the flower buds; outer bud scales begin to separate at the tip revealing paler interior bud scales. This bud stage can usually tolerate cold temperatures of 10 to 15⁰F (-12 to -9⁰C).
The flowers on the blueberry bush will pollinate and set fruit in a 2-3-week window, during which the plant experiences a tremendous hormonal shift to support this reproductive phase.
Once the flowers fade, clusters of small green berries appear, gradually turning red then blue as they ripen on the bush. Depending on the variety, blueberries produce from early summer through late fall.
Blueberry flower
