How to Prune Lavender Plants

How to Prune Lavender Plants

  1. Pruning Younger Lavender Vegetation

    Begin pruning lavender vegetation whereas they’re nonetheless younger. Start by pinching off ideas of recent progress, so {that a} younger plant can reply with dense branching that helps type a good condition and quite a lot of blooming progress to work with because it matures. Ready to prune will trigger the plant to type woody progress that may’t be formed as properly.

  2. Pruning Established Lavender Vegetation

    Closely prune established lavender, reducing again all stems by at the least a 3rd after the plant is completed flowering for the season. Lavender in full solar will be anticipated to develop vigorously annually, so take this chance to reform your vegetation into the inexperienced mounds which might be lavender’s signature form. You need to use hand pruners or pruning shears. Shears are much less exact than hand pruners, however they save time and are a necessity in case you are creating or sustaining a lavender hedge.

  3. Pruning Outdated Lavender Vegetation

    Proceed to closely prune outdated vegetation, however don’t reduce all the way down to leafless wooden. You may’t rejuvenate vegetation by reducing into outdated wooden, however you possibly can attempt to rejuvenate them by pruning to factors simply above the wooden. A very good rule of thumb is to depend to the third node (raised bump from which leaves develop) above the woody half, after which reduce simply above it. In case you are fortunate, all three nodes, in addition to some hidden nodes buried within the wooden, will get up and develop for you.

  4. Pointers for Particular Varieties

    Figuring out your lavender selection and tailoring pruning to that kind will enable you get much more return in your efforts. There are three frequent kinds of lavender:

    Lavandula angustifolia: English lavender is available in many types, together with ‘Hidcote’ and ‘Munstead.’ This lavender has single, leafless stems and compact spikes of blossoms. It’s typically low-growing and has a compact, mounded form. English lavender blooms in late spring to early summer time. If it is pruned evenly simply after its first flowering, it’s going to seemingly flower once more in late summer time. After this second flowering, a full pruning—sometimes in late August—will put together it for winter and encourage extra blooms in spring.

    Lavandin x intermedia: This hybrid of English and spike lavenders additionally has many types. The commonest are ‘Grosso,’ ‘Provence,’ and ‘Large Hidcote.’ Its stems are branched and longer than these of English lavender. The flower spikes are also longer, they usually have a sleek taper. Lavandins are mounded in form and often bigger than English lavender. And the lengthy stems are likely to fan out from the middle. Lavandins bloom in mid- to late summer time, and a full pruning after the lengthy blooming season will put together a plant for winter. Due to the lengthy stems, you may have to prune as a lot as half the plant’s dimension.

    Lavandula stoechas: Generally referred to as Spanish or French lavender, that is the least hardy of the lavenders. And it blooms the earliest in spring. Spanish lavender has a brief, full flower spike with open petals on the high, distinguishing it from different sorts. Due to its fragility, evenly prune this lavender—by no means too near the bottom—simply after the primary flowering. Then, comply with up with mild deadheading (eradicating spent flowers) and shaping for the remainder of the season. A barely extra vigorous pruning will be performed in late August to arrange the plant for winter and encourage a fuller plant in spring.

Working With Lavender Vegetation

Lavender is thought to be a semi-shrub or subshrub—a plant that appears like a perennial as a result of most of its progress is tender and inexperienced however older base stems flip to wooden. Figuring out that is going that will help you prune your lavender.

Deep on the middle of the mounded semi-shrub, your lavender plant is attempting to show to wooden. One aim of pruning lavender is to decelerate that transformation for a number of causes:

  • Lavender wooden could be very weak and vulnerable to splitting resulting from snow, ice, and decay.
  • Lavender is shallow-rooted, which implies roots are extra vulnerable to rot and early demise resulting from an excessive amount of moisture.
  • Common pruning encourages root progress, particularly in the course of the winter months when the plant is storing vitality within the roots. A robust root system is important for a lavender plant to thrive for a few years.
  • Not like many true shrubs and bushes, the wooden that kinds on lavender often doesn’t rejuvenate. Outdated wooden will cease producing new shoots or will produce spaced-out shoots, detracting from the plant’s general look.

When to Prune Lavender

One of the best time to prune lavender is after flowering is full, however this plant is forgiving. All lavenders bloom on the stems that grew within the present yr. This implies pruning will be performed in early or mid-spring with out sacrificing the present yr’s flowers.

Pruning in spring can delay flowering—which is perhaps your choice—and it is a good time to take down useless parts and shorten progress to the buds. Pruning in late summer time or early fall earlier than the primary frost encourages good air circulation, which guards in opposition to rot. So if in case you have the time, pruning twice a yr will be useful in your plant.

Suggestions for Pruning Lavender

Pruning is usually crucial for the well being of a lavender plant. Not pruning lets a plant get massive and woody, and it kinds nooks that entice water. This may introduce a number of hazards:

  • In summer time, trapped water promotes rot in lavender’s weak stems and wooden.
  • In late autumn, trapped water promotes an early frost, ending the rising season prematurely.
  • In winter, trapped water can freeze, simply splitting woody components. Plus, a dense plant or one with sprawling wooden is very weak to snow masses, which might deform or break vegetation.

So keep watch over your lavender plant all through the seasons, and take away components that may trigger issues.


Illustration: Catherine Music. © The Spruce, 2018 
Author: admin

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