Pruning Hydrangea paniculata grandifolra and Hydrangea. arborescens.

Advice information on how and when to prune these Hydrangeas.

Hydrangea paniculata Pink Diamond.

How and When to prune Hydrangea arborescens and H. paniculata Grandiflora types..

This group of Hydrangeas - comprising Hydrangea paniculata and Hydrangea arborescens types - differ from the normal mop head varieties, in that they flower on growth made in the current season. Both Hydrangea paniculata and H. arborescens need to be pruned in early spring to ensure a good crop of new stems which will then bear the large flowers on the ends.

They should be pruned in February or March. Prune the old stems back either to near ground level, or to a main trunk which has been allowed to grow to give the shrub extra height. Pruning in this way is essential to ensure a health looking plant with masses of large blooms on the end of arching stems.

This type of annual pruning - together with good growing conditions - will give you a spectacular shrub that will reach up to 1.8 metres by mid summer - depending upon the variety.

Hydrangea paniculata Grandiflora

The plant stems will soon grow to 1m plus in length, giving you a splendid specimen of arching flower stems through mid/late summer. Do not prune off the old flower heads as the dead flowers will look superb through late autumn and winter. Quite spectacular in good autumn sunshine.

Mop Head and Lacecap Hydrangea Pruning

Back to A-Z of Pruning Shrubs