Have some hydrangea plants in my front yard - one of them seems to be drooping as if it needs water. I live in Illinois and we have had rain less then two days ago and much more before that. Wednesday's rain was a soaking rain and the weather was hot and humid. It also looks as if it has something eating at the leaves. I looked on the leaves but do not see anything. I have several plants in the landscape, but only one of the hydrangeas appears to be wilting. All seem to have leaves here or there with something eating at it. I also have some hostas that appear that something is eating at them as well. First thought it might be rabbits, since there were some leaves that were along the edge, but some have the holes in the center as well.
If you have holes in the leaves, including your hosta plants, then it could be slugs. You would likely not see these pests as they generally come out only at night. This article will help: https://www.gardeningknowhow.com/plant-problems/pests/facts-about-slugs-and-how-to-kill-garden-slugs.htm
I planted two blue hydrangeas. They started growing good but now they are turning yellow. Will red cypress mulch kill or hurt my hydrangeas? Also, can I use Epsom salts?
The red cypress is not the problem. They likely need more water. If they are newly planted, they need lots of water until they are established. Increase watering and that should help.
I have had two hydrangea bushes for 8 years and they never have flowered.
It is likely lacking a good phosphorus/nitrogen balance in the soil. Too much nitrogen or too little phosphorus will cause it to fail to bloom. This article will have some other suggestions as well:
https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/hydrangea-not-blooming.htm
One of our hydrangeas has had 3 (2+ foot long) stems break off at the soil. I first noticed wilt, then thinking the rain had beat them down, tried to 'up' them, and they came off at ground. I find no signs of any pests, and we've had only 1/2 inches of rain in the past week. What should I do?
They could have been lacking water, as the rainfall you received was not much. Hydrangeas are heavy water feeders and if they do not get enough, will quickly succumb to dry conditions. This article will help determine if your shrub is still alive. In the meantime, give it some water. https://www.gardeningknowhow.com/plant-problems/environmental/how-to-tell-if-a-plant-is-dead-and-how-to-recover-an-almost-dead-plant.htm
Most of my hydrangeas are blue, and my neighbor's is this beautiful combination of red, blue-purple, and a mix of the 3 colors all on the same bush. She hasn't done anything to it. How can I make mine do the same thing?
This article has information about changing hydrangea colors: https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/change-hydrangea-color.htm
I would like to know how to care for hydrangea.
This article should help: https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/growing-hydrangeas-hydrangea-care-guide.htm
I recently planted a hydrangea and now the leaves are turning black. What do I need to do? It is getting a half day of full sun, and the soil was a good mix of topsoil and fertilizer. Thank you.
You don't say where the black is on the leaf. If its around the edges, you plant is suffering from transplant shock, sunscald (because it was grown in a shadier spot than yours) or lack of water (possibly before you bought it). If this is the case, your plant will recover. If the dark spots are in the center of the leaf, it's probably disease. Dig it up and return it to the store.