Q: My Nikko Blue hydrangea is about 5 years old. It looks fantastic, but blooms less and less each year. It has lots of healthy leaves, but few flowers. Do you have any suggestions? — Adrienne Laya, ...

Q: My Nikko Blue hydrangeas have blooms that are partially to fully brown from some sort of disease. The leaves are fine; only the blooms are affected, and soil pH is perfect. I have reached out to ...

French hydrangeas are prized for their globe-like blooms, popping off like fireworks shows in gardens throughout the late spring and early summer. Mopheads are typically pink, blue, or white, but can ...

Q. I have a `Nikko Blue’ hydrangea that is 5 years old. For the past two years, it has had only one bloom. The plant gets seven hours of sun per day and I cut it back to about 6 inches in the fall.

Q: I bought a ‘Nikko Blue’ hydrangea that has now turned pink! I put a whole bag of something to turn it back to blue, which it sort of has. Is it rusted iron that you’re supposed to use? A: ...

Q: This spring I nursed back to health three 'Nikko Blue' hydrangeas. Snails ravaged them last year. The leaf edges also browned, then holes appeared. I had sticks for most of the winter. In January I ...

What do I need to add to my soil to keep my hydrangeas blue? They turned a rusty pink color after I planted them. -- Cathy Dowgin, via e-mail The color of hydrangea flowers are sensitive to soil ...

Have you ever wondered why the blue hydrangeas look so beautiful on the Cape but are rather lackluster or sparse further inland? That hasn’t been the case this summer. All varieties of hydrangeas have ...

Dear Carol: I take exception to your comment about Hydrangea Endless Summer. Don't know where you tried it, but I have it here in North Syracuse, where the soil is so sandy that without heavy mulch, I ...