When to prune shrubs that bloom in the spring?

Pruning stimulates the vigor and flowering of shrubs while controlling their development. But when and how to trim? Follow my advice.

Trimming shrubs every year

Trimming a shrub helps keep it healthy, optimize flowering and develop beautiful foliage. Not pruned, the shrubs develop twigs that extend more and more. The flowers then fill only the ends of the stems. Pruning promotes the penetration of light into the heart of the shrub and ensures the formation of new, vigorous and flowering stems.

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When and how to trim?

It should be taken into account how the shrub grows and blooms. If you prune a shrub that blooms in the spring at the end of winter, you will eliminate any hope for flowering by removing shoots bearing flowering twigs. Take the time to understand how your shrubs are flowering , then pruning techniques will appear to be flowing from the source.

Pruning spring flowering shrubs

  • Shrubs: Forsythia, Quince, Blood Gooseberry, Deutzia, Weigela, Seringat, Lilac
  • Growth: develops its flower buds on the stems formed the previous summer.
  • Size: late spring, just after flowering. If pruned in autumn or late winter, you lose flowering.

Trimming summer flowering shrubs

  • Shrubs: buddleia, caryopteris, ceanothus, lavender, hydrangea, hibiscus, cinquefoil, rose
  • Growth: the flowers grow on the twigs formed on the wood of the year, i.e. after winter.
  • Size: in autumn after flowering or at the end of winter for shrubs more sensitive to frost. A short pruning stimulates the formation of new shoots that will carry the flower bouquets.

Trimming evergreen shrubs

  • Shrubs: holly, mahonia, photinia, rhododendron, pieris, laurel, berberis
  • Growth: its naturally bushy wearing requires only a light pruning.
  • Pruning: In spring or late summer, pruning encourages the growth of new twigs. The shrub has a more compact and regular wearing.

Trimming deciduous shrubs

  • Shrubs: elderberry, dogwood, willow, hazel, cotinus
  • Growth: the interest of the shrub lies in the beauty of its foliage.
  • Pruning: In autumn or late winter, pruning helps to rejuvenate the shrub, remove dead or damaged wood and old lignified woods that no longer bloom or become detrimmed from the base. Pruning also reduces the size of the shrub if it becomes invasive and stimulates the growth of young, vigorous shoots.

Trim Climbing Shrubs

  • Shrubs: clematis, wisteria, honeysuckle, climbing hydrangea, campsis, climbing rose
  • Growth: the mode of growth and the time of spring or summer flowering varies by shrub
  • Pruning: in late winter or early spring for the shrub that forms its summer flowers on the shoots of the year, and just after flowering for the shrub that grows its flowers in the spring on the one-year wood.

My good tools

  • Felco cutting shears : maneuverable and well sharpened, for cutting green wood rods with a diameter of less than 2.5 cm. An ergonomic handle ensures a comfortable and effortless grip. www.felco.com
  • Wolf Anvil Secateurs: It has only one blade, lined with an anvil, which allows for efficient cutting of larger diameter green wood and dry hard dead wood. www.outils-wolf.com
  • Gardena Anvil Branch Cutter: essential for pruning large branches of a shrub. The rack gear multiplies up to three times the cutting force. www.gardena.com
  • Fiskars Telescopic Branch Cutter: for pruning a climbing plant or the top of a tree. The cutting angle is adjustable for facilitate the size. www.fiskars.fr

Gestures of the waist

The twigs are cut over a vigorous eye or pair of buds or above the attachment point of a leaf.

  • Alternating Buds (a): Cut the stem into a bevel facing opposite the bud, 2-3 cm above it.
  • Opposite buds (b): cut perpendicular the stem just above a pair of buds or leaves.
  • Pruning into grape (c): When a shrub has old branches without flowers or has suffered from winter frost, it must be folded down by cutting all branches 20 cm from the ground. This operation makes it possible to rejuvenate the shrub. It is done with a branch cutter at the end of winter before the sap is raised.
  • Carving at Planting (d): At the time of planting, it is always good to slightly trim a shrub in order to rectify its figure. Shorten the too long stems at the pruner. Remove weak, dry or poorly placed shoots at the base.
  • Pruning after flowering: Pruning helps both remove wilted flowers and prevent these bushy shrubs from getting too tangled. The more severe the cut, the more vigorous the regrowth will be. But sometimes at the expense of flowering.

Report published in Women of Today 2012 (www.femmesdaujourd’hui hui.be)

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