How to Grow a Hydrangea Tree: All You Need To Know

If you are interested in keeping other parts of the hydrangea to grow as one or more additional bushes, remove as much dirt from the plant’s root ball as possible. The key is to expose the roots and base of the plant so you know where to make the cuts. Make sure the sides of your tree are well supported by good roots so you have a better chance of survival and success.

Best Types of Tree Hydrangea

 

There are different types of tree hydrangeas:

  • Hydrangea paniculata ‘Grandiflora’ grows to 25 feet with a 10-foot spread and has pure white flowers.
  • Hydrangea paniculata ‘Limelight’ grows 6 to 8 feet tall and 5 to 7 feet wide and has a greenish color in its flowers.
  • Hydrangea paniculata ‘Big Ben’ grows 6 to 8 feet tall and 5 to 7 feet wide and is valued for having flowers of a deeper pink color.
  • Hydrangea paniculata ‘Bobo’ is a dwarf variety, growing only about 3 feet tall and wide.
  • Hydrangea paniculata ‘Pinky Winky’ grows to a maximum height and width of 8 feet and is known for its bicolor flower heads (pink on the bottom, white on the top).
  • Vanilla Strawberry: 7-10 feet tall

Pruning

With clever pruning, this plant can be trained into a small tree. However, it is at its best when grown as a large shrub with multiple stems. Flowering occurs during the growth of the current season (new wood). So, prune as needed between late winter and early spring. Pruning too early may result in the loss of some flowers that growing season. When kept in shrub form, the shrub will produce larger flower clusters if thinned out to five to ten main stems.

To teach a plant to grow like a tree, choose a main stem and attach it to a sturdy stake. Trim competing ground stems. Remove any buds protruding from the main stem until the stem is about three-quarters of the way above the ground. Keep looking for buds around the base of the plant and remove them as they appear. Your main trunk keeps growing and has leaves on top so it looks like a tree trunk. It may take two years or more to achieve the correct tree shape.

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