Hydrangeas are a common flower found in many British gardens and they can be easily propagated from cuttings taken in late summer.
Gardeners looking to increase the number of hydrangea plants they have, or grow more to share with other gardeners, can take cuttings from all varieties of hydrangea, including mophead, lacecap and climbing.
When to take hydrangea cuttings
The best time to take a cutting is in the late summer, when the cutting is semi-ripe, meaning they are from this season’s growth, but old enough to have developed a woody base and soft tip.
The cutting needs a woody base to prevent it from rotting when inserted into compost.
How to take a hydrangea cutting
You will need:
- Sharp knife
- Rooting gel or powder
- Small pot
- Gritty, well-drained compost
1. According to Crocus, an online plant nursery, you need to find a stem without flowers. Measure 20cm or four nodes and cut.
2. Pinch out the top soft growth.
3. Count down three nodes, and cut below the third, then remove the four lower leaves with a sharp knife.
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4. The remaining leaves, cut them in half with a knife, this reduces water loss and the stress endured by the rooting process. These leaves will be replaced when the cutting has rooted with new shoots.
5. Dip the stem in rooting gel and place the cutting gently into compost, then label the pot and water it.
Due to its woody nature, hydrangea cuttings cannot propagate in water.
Keep the cuttings in a propagator to retain moisture until the roots have developed – this is usually after six weeks.
Overwinter in a cold frame or similar, then when the cuttings start to grow in spring, pot them on.
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