Return to the Azalea & Rhododendron Forum | Post a Follow-Up

Pruning azaleas

Posted by eaglesclaw121 Virginia (My Page) on
Sun, Jun 19, 11 at 7:55

We have azaleas that have greatly overgrown and are about 20 years old. We need to have them, along with several rhodas pruned dramatically. Should this be done? Or will it kill them? A specialist came out and said we could have the azaleas cut down to about 18 inches! They're about 4 feet high now. We have some bare spots now in the middle of some azaleas and I'm uncertain if I did that by pruning previously. Please help! Thanks

Follow-Up Postings:

RE: Pruning azaleas

  • Posted by morz8 Z8 Wa coast (My Page) on
    Sun, Jun 19, 11 at 19:33

Healthy azaleas and rhododendrons will usually respond well to hard pruning.

Safest is to remove 1/3 of the material each year over a three year period, but that's a long transition to what you have over what you eventually want and many will cut back all at once. The correct timing is immediately after bloom, and even then you may lose a year of flowers on the slower rhododendrons. Pruning early in the season after bloom gives the new growth the longest possible time to sprout and mature before facing cold again, lessens risk of winter injury.

Azaleas have dormant buds all up and down the length of their stems and will sprout from just below any cut you make.

Growth buds on rhododendrons form in the leaf axils (where leaf joins or once joined stem). If you are making more minor changes in a rhododendrons shape, cut just above a leaf rosette and new growth will emerge from the dormant eyes there. If you have to cut into a branch below any leaves, look for faint rings on the bark which marked previous growth where there once were leaves. Careful inspection should reveal small bumps which are growth buds just under the bark. Make your cuts just above the rings so dormant buds below them will be stimulated into growth.

If you can't find any rings or dormant buds, cut where you must to shape your plant, then go back later and remove any bare stubs to the point where growth emerges.

Dormant buds on rhododendrons should begin to grow within a month on smaller limbs, up to approx 10 weeks on taller main trunks.

 o Post a Follow-Up

Please Note: Only registered members are able to post messages to this forum.

    If you are a member, please log in.

    If you aren't yet a member, join now!

Return to the Azalea & Rhododendron Forum

Information about Posting

  • You must be logged in to post a message. Once you are logged in, a posting window will appear at the bottom of the messages. If you are not a member, please register for an account.
  • Please review our Rules of Play before posting.
  • Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review your post, make changes and upload photos.
  • After posting your message, you may need to refresh the forum page in order to see it.
  • Before posting copyrighted material, please read about Copyright and Fair Use.
  • We have a strict no-advertising policy!
  • If you would like to practice posting or uploading photos, please visit our Test forum.
  • If you need assistance, please Contact Us and we will be happy to help.

Learn more about in-text links on this page here