How do you prepare soil for hydrangeas?
Just so, what is the best soil for hydrangeas?
Most hydrangeas thrive in rich, porous, somewhat moist soils. Add compost to enrich poor soil. They prefer full sun in the morning, with some afternoon shade; however, many will grow and bloom in partial shade.
Also Know, what does Epsom salt do for hydrangeas?
Adding Epsom Salt to plants has been reported to enhance the color of blossoms and leaves, promote new flowers and fruit, improve the root system and improve the strength of stems. Epsom Salt is safe to use and will not build up in the soil, even if additional magnesium isn't needed."
Hydrangeas that bloom on old wood do not need pruning and are better off for it. If you leave them alone, they'll bloom more profusely the next season. But go ahead and gently thin or deadhead. Just remember new growth may come, but that new growth will be without blooms next season.