Tag Archives: azalea

PROPER TIMING FOR PRUNING FLOWERING PLANTS

Suggested Pruning Time for Common Flowering Trees, Shrubs, & Vines

Spring-Flowering Plants:

Plants that bloom in early spring usually produce their flower buds the year before. The buds over-winter on the previous year’s growth and open in spring.
Prune after flowering:

Alternate-leaf Butterfly-bush (Buddleia alternifolia)
Azalea (Rhododendron species)
Beautybush (Kolkwitzia amabilis)
Bigleaf Hydrangea (Hydrangea macrophylla)
Bradford Pear (Pyrus calleryana ‘Bradford’)
Bridalwreath Spirea (Spiraea prunifolia)
Clematis (Clematis species)
Climbing roses
Crabapple (Malus species)
Deutzia (Deutzia species)
Dogwood (Cornus species)
Doublefile Viburnum (Viburnum plicatum var. tomentosum)
Flowering Almond (Prunus species)
Flowering Cherry (Prunus serrulata)
Flowering Quince (Chaenomeles species)
Forsythia (Forsythia species)
Indian Hawthorn (Raphiolepsis umbellata)
Japanese Kerria (Kerria japonica)
Japanese Pieris (Pieris japonica)
Mockorange (Philadelphus species)
Oakleaf Hydrangea (Hydrangea quercifolia)
Pyracantha (Pyracantha species)
Redbud (Cercis species)
Saucer Magnolia (Magnolia x soulangiana)
Star Magnolia (Magnolia stellata)
Thunberg Spirea (Spiraea thunbergii)
Weigela (Weigela florida)
White Fringetree (Chionanthus virginicus)
Winter Daphne (Daphne odora)
Wisteria (Wisteria species)
Witchhazel (Hamamelis species)

Prune Summer Flowering Shrubs In Late Winter or Early Spring.
Many summer flowering shrubs bloom on the current year’s growth.  Pruning them back in later winter encourages them to produce lots of new growth that summer and will result in more flowers.  Don’t be afraid to cut fast growing plants, such as buddleia or caryopteris, down to as little as 10-12” tall.  The exception to this rule is Hydrangeas.

Beautyberry (Callicarpa species)
Butterfly-bush (Buddleia davidii)
Camellia (Camellia species)
Chastetree (Vitex agnus-castus)
American Cranberrybush Viburnum (Viburnum trilobum)
Crapemyrtle (Lagerstroemia species)
Floribunda roses
Fragrant Tea Olive (Osmanthus fragrans)
Gardenia (Gardenia jasminoides)
Grandiflora roses
Glossy Abelia (Abelia x grandiflora)
Goldenraintree (Koelreuteria species)
Japanese Barberry (Berberis thunbergii)
Japanese Spirea (Spiraea japonica)
Mimosa (Albizia julibrissin)
Nandina (Nandina domestica)
Rose-of-Sharon (Hibiscus syriacus)
Sourwood (Oxydendrum arboreum)
Anthony Waterer Spirea (Spiraea x bumalda ‘Anthony Waterer’)
Sweetshrub (Calycanthus floridus)