Return to the Minnesota Gardening Forum | Post a Follow-Up

 o
Dahlia Experts- Please help-

Posted by longfellowmpls Twin Cities (My Page) on
Sun, Aug 19, 07 at 17:12

I consider myself a competent gardener- with about 20 years of experience. I have grown dahlias for a long time now and am really discouraged by this year. I lost about half my plants to what I believe is a virus- they were either stunted to begin with and died- or shriveled up and turned yellow- after getting off to a strong start.

For the last 4 seasons I have grown dahlias in full sun each with adequate water and I believe adequate nutrients (bone meal added at planting and reg fertilizer there after)- on the south side of the house in raised beds (about 8 inches high). I've grown them in this same location now for the last 4 seasons- each season has brought more fatalities to my plantings- with this year being the worst! Here are my questions:
-Do I need to rotate planting them (maybe plant in this area every other year?)
-Is it the stock I got to begin with- which then affected other plantings? (Some of the tuberes were bought from a specialty grower in OR- those are the ones that had a 100% failure)
-Did the drought this summer- with its intense heat- weaken everything to the point of it getting sick? ..and maybe this was just a bad year for dahlias?
-Do I need to truck in some horse manure to amend this location's soil-is it a Nitrogen issue/deficiency?
Please help!
Thank you!


Follow-Up Postings:

 o
RE: Dahlia Experts- Please help-

Sorry to hear about your losses. You might want to ask the folks on the Dahlia forum what might be causing this as well.

Here is a link that might be useful: Dahlia forum


 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 Minnesota 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