Hydrangea Endless Summer®
'Endless Summer™' was introduced by Bailey Nursery and blooms on both old and new wood, from early summer till fall. Bigleaf Hydrangea performs well in moist, rich garden soil in partial sun to fairly deep shade, where it can grow 4 to 6 feet tall. Although it is best to add lots of organic matter to the bed before planting, I (Dr. Gilman) have had great success with planting in a fine sand soil without amendments. Be sure that tree roots are not competing with the roots, since this will slow growth dramatically and minimize flowering. Flowers are bluish in acid soil, pink closer to neutral. Late winter freezes can kill flower buds in zones 7 and 8. Pollen can cause slight allergy symptoms.