Stimulate a second flower by pruning
Deutzia are among the slow-growing trees. Many gardeners therefore forego an annual cut. This saves a lot of work if the Deutzias are planted as a hedge.
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If you tend the shrub as a single plant in the garden, you should definitely use scissors in spring. Cutting back immediately after flowering stimulates the formation of new flowers in autumn. You can then enjoy the pretty flower clusters twice a year.
Cut back the Deutzia after flowering
- Cut back by a third
- Remove weak shoots
- Shorten shoots that are too long
- Thinning out the bush
The best time to prune Deutzias is June, early July, when the shrub has withered.
Cut the dead shoots down to a third. Always make the cut just above a bud that is facing outwards.
Make sure that the Deutzia keeps a nice shape when you cut it. Remove weak shoots and shorten any protruding branches. Light up branches that are too close together so that the middle of the bush receives enough light.
Remove old wood when rejuvenating
After two to three years, it's time to make a taper cut. In doing so, you remove all old, lignified shoots. Cut the old branches as close as possible to the root neck. You will usually need one for this Pruning saw.
The rejuvenation cut should then be made every two years to encourage the Deutzia to develop young shoots.
Opinions are divided about when the ideal time for a rejuvenation cut is. Some gardeners advise making the rejuvenating pruning in late winter, while others recommend pruning right after flowering.
Cut cuttings for propagation
If you have a whole Deutzia hedge want to plant, cut cuttings around the plant in the summer multiply. To do this, use a shoot that grows in the middle of the shrub.
Cut off a 20 to 30 cm long piece that is not yet completely lignified. The lower leaves are removed and the cutting is transferred to a pot of germ-free Potting soil plugged.
The pot needs to be bright but not in direct sunlight. Keep the soil evenly moist to allow roots to form. Avoid getting too wet because the cuttings will rot.
Tips
the non-toxic deutzia are very robust and easy to care for. The soil should be well drained and rich in nutrients. The hardy shrub only blooms abundantly if it receives enough sun in its location.
