Pleeeeease help. SOS… I need help because my hydrangeas continue to decline. It looks like they are spiraling just down now. I have attached today’s picture. They’ve been in morning sun/pm shade, moist, and last week I did add 1/2 oz of bone meal and 1/2 oz de-acidifier to soil. Thoroughly wet it afterwards. I’m trying not to give up…. help please.
Your hydrangeas actually look quite healthy! And giving them morning sun and afternoon shade, as well as keeping the soil evenly moist is exactly what you should be doing. It simply looks like the flower heads are starting to age, which is absolutely natural. You can either allow them to continue aging on the stem or deadhead them to encourage another bloom to develop later in the season. I’ve shared a couple of videos below with more information.
Aging blooms: https://youtu.be/16jcqhU0510