What month do you prune hydrangeas in NZ?

You can prune your hydrangeas in autumn or early spring/late winter. Around August/September the fat flower buds will start developing so it is easy to know where to prune to get maximum flowering. Vegetative buds (leaves) will be long and skinny.

Should I deadhead my hydrangeas NZ?

Since hydrangea blossoms are so big, deadheading a hydrangea makes a real difference in diverting energy to more important parts of the plant’s growth. You should carry out this practice all through the blooming season to encourage new blossoms and keep your plant looking fresh.

What do you feed hydrangeas NZ?

Feeding. Hydrangeas grow best if they are fertilised once or twice in the summer. Give them a good slow release fertiliser like nitrophoska blue in spring, and again during flowering.

Should I cut off Brown hydrangea blooms?

Are the blooms on your hydrangea shrubs fading or turning brown? No need to worry – this is simply a sign that it’s time to remove the flowers, a process called deadheading. When you deadhead hydrangeas, you aren’t harming the plants at all.

Should I cut the flowers off my hydrangea in the fall?

“Stop deadheading in the fall, when bigleaf hydrangeas produce their last flush of flowers, to enjoy the dried blooms throughout the winter,” she says. “These can be removed to help produce healthy buds in the spring.”

What is the best fertilizer for hydrangeas NZ?

Feed your hydrangeas with Tui NovaTec Premium Fertiliser in spring and late summer/early autumn. While your hydrangeas are growing regularly apply Tui Organic Seaweed Plant Tonic for a healthy boost.

Should you water hydrangeas every day?

To help Hydrangeas thrive, give plants a deep soak 1-3 times a week rather than giving them little sips of water daily. Hydrangeas do not tolerate overwatering or drought well.

What happens if I don’t deadhead hydrangeas?

If you simply skip deadheading hydrangeas, no harm will come to your plant. At least nothing so serious that you should stress about it. Your hydrangea may not produce as many blooms as if spent blooms would have been removed, nor the blooms will be very large. But it will still bloom, regardless.