Endless Summer® Bigleaf Hydrangea

When Endless Summer hydrangea was introduced in 2004, it changed the way people thought about hydrangeas. After all, it was the first "reblooming" hydrangea in that it bloomed on old wood as all bigleaf hydrangeas do but was also capable of blooming on new wood as well, lengthening the display of fresh flowers to months instead of just weeks. Though hydrangeas have come a long way since then, Endless Summer remains a classic, with light blue or light pink blooms in summer. 

What makes Endless Summer different than other bigleaf hydrangeas?

• The first "reblooming" bigleaf hydrangea

Details:
Name: Hydrangea macrophylla 'Bailmer' USPP15,298
Hardiness: USDA zones 4-9
Height x width: 3-5'
Light: Full to part sun
Soil: Evenly moist but well-drained soils are best. A 2-3" layer of shredded bark mulch is recommended in all areas, all year round.
Pruning: Blooms on old and new wood. For best results, treat like other old wood-blooming hydrangeas and prune out only dead wood in spring. 
Water: Average to high water needs. Though big leaf hydrangeas cannot grow in wet soils, they can become drought stressed readily and should be watered regularly. Plants in full sun and/or warmer climates will need more water than those in less sun and/or cooler areas. 
Fertilizer: Fertilize once in early spring with a rose fertilizer if desired. To encourage rebloom, fertilize monthly through late July.
Bloom time: Summer, fall
Bloom color: Flower color depends on soil pH; Pale blue in acidic sites and soft pink in neutral to alkaline areas.
Uses: A classic choice for including in gardens and landscaping, it also makes a nice choice for hedges and mass plantings.