It's a roller coaster ride. Leaves are perky at night; wilting during the day. Hydrangea stomata don't cooperate. We explain what stomata are and the steps to take to help your hydrangeas thrive.

Remontant hydrangeas rebloom in the fall. Free flowering hydrangeas flower more freely, yet are not remontant. Learn the nuances here.

Panicle describes the cone-shaped flowers of two hydrangea species. Botanical  terminology uses the word panicle to describes the complicated structure of these hydrangea flower heads - the cones of flowers we love in our midsummer gardens. We'll tell you more about that and explain what helps them antique their best shades of rose.

The mophead types are, literally, the Garden Variety Hydrangea types. They were selected by people to grow in their gardens because they are bigger than the wild lacecap types and therefore more bodacious. Learn about their showy sepals here.

Lacecaps are the wild hydrangeas set up by nature to have two kinds of florets in the lacy flower heads. The showy outer florets ring the edge of the head. Their job is to attract pollinating insects to the less-showy inner fertile florets. It's the job of the fertile flowers to make fruit/seeds and reproduce so the species lives on.

Did you know that our beauty queen hydrangea, Hydrangea macrophylla, combats aluminum toxicity with its flowers? It’s well known that pH influences flower color on bigleaf hydrangeas, but how this happens is even more interesting than pH alone. Here’s the science behind the flower color.