Genus of flowering plants, also known as Hortensia.

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Why did hydrangea flowers change from pink to light yellowish/brownish green?

We have a hydrangea in its second season planted outside (New York region). The plant gets a lot of sun for most of the day. The plant had pink flowers the first season and the beginning of this ...
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Dealing with Hydrangea with dark green flower tips and wilting leaves

I had a pot of hydrangeas for a few months which I keep outside. I water them twice a day: in the morning and in the early/late evening. They receive little to no direct sunlight - which according to ...
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What Should I look (out) for when purchasing a hydrangea plant?

I was about to buy a potted hydrangea as a last minute gift. I looked at the stem and it appeared dry, brittle and brown at the base of the plant. It's nice and green and firm near the heads of the ...
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How do I prune my mop-head hydrangea?

I have a five year old Annabelle Hydrangea that is getting bushy. I have lightly pruned it in the past, but I don't know really know how I am supposed to do it. It is about 4' high and 6' wide. How do ...
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How do I change the color of my hydrangea flowers?

So, I've heard that people sometimes mix a bit of lemon juice in when they water blue hydrangeas, they say it keeps them blue if the soil is lacking in acid. I was wondering, I have a pink indoor ...
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Should I remove the dead flower heads from my hydrangea?

Earlier this year, I bought a hydrangea (from Ikea of all places!) and planted it out in the garden. It flowered nicely for a while, but the flowers have pretty much finished now and nearly all of the ...