When Will My Hydrangeas Bloom?

Question:

How long before a hydrangea blooms? I bought Nikko Blue hydrangeas from BJ's Wholesale Club. I am guessing they won't be big enough to
bloom this year but I was wondering if it was correct to expect them
to have some flowering action next summer? Your advice is appreciated.

Hardiness Zone: 7b

Dawnne from Indian Land, SC

Answer:

Hi Dawnne,

How soon before your Nikko Blue hydrangea blooms depends on how long it takes its roots to become well established. Under ideal conditions, plants may bloom as young as two years of age. Plants are like people, each one is a unique individual, so yours will bloom when it's ready.

Here are some growing tips for Nikko Blue. By creating the ideal conditions for your hydrangea, you can definitely speed the process of becoming established along.

Big leaf hydrangeas like your Nikko Blue grow best in nutrient-rich well-drained soil when given some morning sun and afternoon shade. Apply a diluted (1/2 strength) all-purpose fertilizer (10-10-10) three times during your active growing season (March, May and July). "Big leaves" suggests more rapid water loss. Like their name suggests, hydrangeas need plenty of water and will suffer in hot, dry weather, so water them frequently (at least once a week) during hot weather.

Because this type of hydrangea blooms on old wood (last year's growth) they should be pruned immediately after flowering so they have time to set buds for the following year. Prune too late and you risk cutting off next year's flowers. Another thing to watch for is a late freeze in the spring, which can damage new leaves and developing buds and result in more root growth and less (or no) flowers that season.