My hydrangea is huge and some of it is laying on the ground and flat in the middle. Is there any way I can get it to stand up straight? It is so big even tying around it would be difficult.
Typically if the branches won't stay up on their own, this indicates that either the plant is not getting enough light or that the plant is perhaps become a bed for an animal. If the branches lay down in a circular pattern, then it is likely an animal making a bed there. Add some sticks stuck in the ground to deter this. If the branches are more leggy looking and that is why they won't stay up, then the plant may be blocking its own light. For this year, all you can do it try to prop it up. For next year, when you do your pruning, try to thin the plant out a bit - remove old growth and any weak stems. This should help light reach the center better and prevent leggy stems that fall over.