Need a hardier hydrangea for your garden? Try growing a panicle hydrangea — a lower-maintenance, bold-blooming choice.

Although hydrangeas are relatively hardy plants, some hydrangeas are more cold-sensitive than others and they may not bloom if their flower buds are damaged by extreme cold and harsh winter winds.

They should be sheltered from high sun and high heat locations. All varieties of hydrangeas are hardy for Delaware's Zones 7a and 7b and 8a.. Arborescens grow well among other shrubs. Arborescens are ...