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

 o
Icky, sickly zinnias

Posted by Mrs_Emily 8 Louisiana (My Page) on
Wed, Aug 3, 05 at 2:38

What on earth could be wrong with my zinnias? They ARE second-generation, grown from seeds I collected last year, but last year's were gorgeous, and this year the stems started to turn a sickly brown, the leaves look withered and the blooms die early. I don't see any bugs, but that doesn't mean much since my eyes aren't what they use to be. Any ideas?


Follow-Up Postings:

 o
RE: Icky, sickly zinnias

  • Posted by tapla z5b-6a MI (My Page) on
    Wed, Aug 3, 05 at 7:03

Powdery mildew and/or spider mites are first to come to mind as common on zinnia. But it could be something else - fungal, perhaps.

Al


 o
RE: Icky, sickly zinnias

I agree with Al, with emphasis on the mildew. If it is one of the mildews, you can try drenching the plants with a 'home-brew' of 1 tablespoon milk and 1 teaspoon baking soda mixed into 1 quart of water. Repeat after every rain. Sometimes it helps, sometimes not. Nothing will recover the portions which are dead, but the living plant/s might improve enough to provide you a show of blossoms in a couple weeks.

Another thought is whether or not the saved seed came from hybrid parents -- which do *not* pass the exact hybridized traits into their seeds but instead often revert to one of the grandparents genetics. "Strains", which are not quite hybrids, pass their general characteristics through the seeds - State Fair zinnia is considered to be one such strain. I mention this because I have found saved seed from State Fair does seem to have a great weakness for mildews (shouldn't, but it's happened several times) with the saved-seed-plants often being sickly, small flowered, and mildew-prone. I no longer bother saving that seed.


 o
RE: Icky, sickly zinnias

One of several fungal leaf spot diseases might also be the issue in your part of the country. Bacterial leaf spot could also be a problem. Heat and humidity help create the perfect conditions for the onset of these common zinnia problems. You should see some of mine!

I'm going to cull the offending plants today, and dispose of them. No more zinnias can be planted in those locations (or other disease prone plants). I will never purchase that variety again, either.

I'm going to devote plenty of annual space next year for more of the Profusion zinnias, and of course, Z. angustifolia. Though not the best for cutting, they are tireless bloomers, drought and heat tolerant, and practically disease proof!

If you are interested in a good commercial seed source, let me know.


 o
RE: Icky, sickly zinnias

Sure, rhizo, I'm always interested in obtaining good seeds. As far as the plants that I currently have, I guess I'll pull some of the worst and spray the ret with the recipe Meldy provided. I hate not having my usual zinnias...they normally draw so many wonderful creatures to my yard...and this year it's been lonely out there compared to last :(


 o
RE: Icky, sickly zinnias

Mrs_Emily,

"...They ARE second-generation, grown from seeds I collected last year..."

Do you happen to recall the name of the seed parent?

MM


 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 New to 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