hydrangia plant #344175 - Ask Extension


hydrangia plant #344175

Asked July 18, 2016, 12:20 PM EDT

This hydrangea plant is 10 years old and has only produced blooms after I planted it when new.. This year we have one very beautiful pink hydrangea that surprised us. It is next to Annabells that produce abundantly every year, I have watered. fertilized it etc. to try this one to produce.??

Morrison County Minnesota

Expert Response

Thank you for the question.  Hydrangea will fail to bloom if they are pruned incorrectly.  Since your other two are blooming well, it's possible that pruning is the problem. When to prune so as not to prune off the flowering stems for next year depends on what type of hydrangea you have.  If you are talking about hardy hydrangeas in Minnesota, the Hydrangea paniculata, which includes the cultivars Grandiflora (also known as Pee Gee), Tardiva, Pink Diamond and Unique, they all bloom on new wood, which is wood produced the same year as the flower bud. Therefore, pruning in the spring is recommended. Hydrangea arborescens (Annabelle), which is commonly referred to as snowball hydrangea, blooms on new wood and should be pruned down to a foot or two off the ground in spring. If you have a climbing hydrangea/Hydrangea anomala, or Endless Summer/Hydrangea macrophylla, these produce flower buds on wood produced the previous year and should be pruned after flowering in the spring.
Read more about pruning hydrangea here:

Thank you for contacting Extension.
Anita Hoaglund Replied July 19, 2016, 8:45 PM EDT

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