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Endless Summer Hydrangea

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description Endless Summer Hydrangea Overview

The Endless Summer Hydrangea is a cultivar of the bigleaf hydrangea, Hydrangea macrophylla, developed and introduced by Bailey Nurseries in 2004. It is genetically distinct because it was the first commercially successful reblooming hydrangea variety capable of producing blooms on both old and new growth wood. This characteristic allows the plant to flower repeatedly from spring through fall, even if older buds are damaged by frost. Depending on the soil pH, the large, mophead flowers appear blue in acidic soils or pink in alkaline soils, making it popular for residential landscaping.

help Endless Summer Hydrangea FAQ

Why was the original Endless Summer hydrangea considered a breakthrough?

Bailey Nurseries introduced Endless Summer in 2004 as the first widely marketed bigleaf hydrangea able to bloom on both old and new wood. That reblooming habit can preserve some flowering after winter damage destroys the previous season's buds.

How do you make Endless Summer hydrangea flowers blue instead of pink?

Flower color responds largely to soil chemistry and aluminum availability: acidic conditions favor blue, while more alkaline conditions tend toward pink. White portions of a flower are not simply turned blue by adding an acidifier.

Why is my Endless Summer hydrangea growing leaves but no flowers?

Possible causes include too much shade, excessive nitrogen, late frost, drought, or pruning that removed old-wood buds. Although it can flower on new wood, a short or stressful growing season may still limit its second flush.

When should an Endless Summer hydrangea be pruned?

Major pruning is best avoided because the shrub can carry flower buds on existing stems as well as new growth. Remove dead wood after growth resumes in spring and trim spent blooms conservatively.

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