Garden Galah

Hydrangea

Hydrangea macrophylla

Page last updated: Jan 1st, 2025

Overview

A deciduous plant that goes right back to branches in winter. Photo of the hydragena in late summer with flowers in full bloom over a range of blues and pinks

Seasonal Photos

Spring Summer Autumn Winter
Photo of the hydragena in Spring with flowers starting to emerge Photo of the hydragena in mid summer with flowers in full bloom over a range of blues and pinks Photo of the hydragnea in late Autumn with leaves starting to rot and no flowers Photo of the hydragena in late winter with buds just starting to unfurl

Care Instructions

Prune in mid-late winter once the plant has entered dormant mode (leaves yellowing, flowers dead, minor mildew). Prune stems with dead flowers, go down the stem from the flower to where healthy buds are starting to form, this can be a pretty aggressive prune. Prune stems without flowers less, go down from tip ~6” to where buds should be forming. Prune some stems (approx 1/3) further down the stem to get better foliage and the others closer to the top for better foliage. Always prune just above where buds are forming.

Mulch in spring with manure/compost covered with lucerne/pea straw

Plant History

The hydragena came with the house. Pruned back in mid-winter 2023 and applied cow manure and mulch in early spring 2023. Responded well over the Summer and grew strongly.

Personal Musings

The hydragena in some ways was the plant that inspired me to work on the garden. The first summer I let the backyard do its own thing and it was quickly covered in raspberry bushes. While cleaning these out I noticed a flower. Somehow, despite absolute neglect and even borderline wilful harm

I really like the buds the hydragnea makes in winter. They look so dense and moist. You can feel the energy in them that will be unfurled when spring arrives and the air warms.

I also respect a plant that responds well to a good prune. There’s something satisfying about knowing that it will return with renewed vigour.

I have seen a possum munching on the hydragnea leaves late at night. This is very naughty and the possum is in trouble.

More Photos

Flowers

Hydragnea flowers emerging from the bud Hydrangea flowers developing with coloured petals beginning to form Hydrangea flower fully developed with vibrant coloured petals covering the entire surface

Leaves

Close-up photo of hydragnea leaves that are starting to rot during late autumn

References