Return to the Great Lakes Gardening Forum | Post a Follow-Up

Astilbe turning brown

Posted by donna_b_gardener N.E. Ohio (My Page) on
Mon, Jul 2, 07 at 20:11

The leaves on my Astilbe are turning brown. Is the sun too intense? What else could it be?

Follow-Up Postings:

RE: Astilbe turning brown

Without knowing where you are, I'd say that if you're wondering about "too intense" sun on your astilbe, it is, indeed, too intense :)

Astilbe do not like sun and are easily scorched. Mine get a bit of morning sun and are fine. But long exposure or afternoon sun will make them look rather crispy around the edges.

They also like moist, but not waterlogged, conditions.

RE: Astilbe turning brown

Hi Donna, I am in ohio too just west of cleveland. The heat here has been miserable and not to the astilbe's liking. Get them in part shade or filtered shade and water them, then let the ground get dry. The tops of my astilbe looked terrible with the heat even in the shade this year and since the temps have gone back down they are greening out from below again. Looking much healthier now.
Good luck!

RE: Astilbe turning brown

If the sunlight levels or temps are too high or the water level is too low (or any combo of these) astilbe will go dormant in summer. When this happens to mine I just let them go so as not to stress them with "on again off again" growth through the summer. They usually return the following year.

good gardening to you

RE: Astilbe turning brown

I just pruned off the older growth yesterday to allow the new growth to take off. We have recently had quite a bit of rain that we desperately needed and the new growth is looking quite good on my pink astilbes, the white flowering ones are looking stressed in the new growth now. Will let you know what happens next.


RE: Astilbe turning brown

good to hear you have some recovery. please do post follow ups.


 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 Great Lakes Gardening 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