The best times to plant hydrangeas are during the spring and fall. These seasons offer moderate temperatures.
This gives the plants the entire growing season to establish their roots before the heat of summer.
Plant hydrangeas in early to mid-fall, at least six weeks before the first expected frost.
Dig a hole twice as wide and as deep as the root ball of the hydrangea. This provides ample space for the roots to spread out.
Place the hydrangea in the hole, ensuring the top of the root ball is level with the surrounding soil.
Check the soil moisture regularly and water as needed. Avoid overwatering, as hydrangeas are susceptible to root rot.
Keep the soil consistently moist, especially during the first few months after planting. Water deeply to encourage deep root growth.