Prune away the dead flower clusters on the bush after the blossoms have completely faded.
Cut off all of the stems as close to ground level as possible. Keep the cuttings in partial shade and keep moist. Check at ground level and remove sucker growth there during the summer. Top prune the plant to improve the shape and reduce its size, but be careful not to remove more than 30% of the top growth. I'd like to "thin" it out though and perhaps propagate new bushes. Select the oldest canes for this pruning.
Rejuvenation pruning is another option, the one you mentioned, which is cutting all stems to the ground and starting over.
Lopping shears work well for live growth up to 1 to 4 inches in diameter and dead branches.
Pruning right after flowering is recommended.
Click on links below to jump to that question. One is small and seems slow growing but it is full of flowers every year. If the temperatures are well below normal for the Mock Oranges growing zone--4-10, you can cover the shrub with a sheet at night. Pruning is done for shape and for rejuvenation if the shrub is unruly or very old. Correct pruning is essential for this group of early summer flowering shrubs. https://www.gardeningknowhow.com/ornamental/shrubs/mock-orange/mock-orange-bushes.htm.
I prune it every fall to fence height. Mock orange is, generally speaking, deciduous and multi-stemmed, with a height and spread that are roughly the same. It is unfortunate that this happened, but not to worry. This was a beautiful bush with sentimental value and would like advice on how to care for it and whether trimming it down will hurt it. Foliage – deciduous Flowering – May and June. Your growing zone will also help us. Keep up to date with all that's happening in and around the garden. Sign up to get all the latest gardening tips! Make pruning your mock orange shrub a part of your regular maintenance routine for best long-term results.
Ask an Expert is made up of groups and individual experts. How to prune philadelphus. Mock orange should be pruned just after it has flowered and the flowers have faded. This will allow more energy to go into blossom production. Select the oldest canes for this pruning. I have shrub with white trumpet-shaped, perfumed flowers with 5 petals and middle top petal has a yellow smudge in middle. You can cut back 1/4 of the shrubs canes to the ground to also help rejuvenate the plant. This protection should be installed in late November and removed in mid April. It was over ten feet tall and ten feet in diameter.
Soft wood cuttings should be taken to propagate a Mock Orange. You can cut back 1/4 of the shrubs canes to the ground to also help rejuvenate the plant.