Dahlia Experts- Please help-

longfellowmplsAugust 19, 2007

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!

Thank you for reporting this comment. Undo
meeperx(z4/5 Mpls)

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

    Bookmark   August 19, 2007 at 10:50PM
Sign Up to comment
More Discussions
Any Minnesotans out there?
These posts r so old! Is there anyone out there ready...
dreamingofmygardens
how late can I divide?
Hi all, Here's a question from your neighbor in North...
prairie_love
clivia
I have a huge yellow clivia for free
lonemuchow
Late Summer Garden Swap???
Anyone interested in a late summer/early autumn garden...
KittyWitty
What to do with all of my Kale?
I grew kale for the first time and really have a beautiful...
vpeterson
© 2015 Houzz Inc. Houzz® The new way to design your home™