Post a reply

Image
May 10, 2018 2:28 PM CST
Name: Erin
Pittsburgh, PA (Zone 5b)
Hello all! This is my 3rd year growing dahlias, and I usually have around 10+ tall and 30+ short. I had 20 tall to start indoors this year, and I've just moved them out earlier this week to harden and grow stronger before I will transplant to my garden at the end of this month. (Zone 5b-6a).

Though I'm using the same lighting system as always, my stems are looking a bit puny this year. I did try to start them a little earlier (early March as opposed to April, last year), and I divided the tubers more than I have in the past.

This stem has just shriveled up in one spot. It does not seem to be cut anywhere. It just collapsed. I don't think there is any rot from initial inspection. Has anyone seen this before? Just curious if it is some kind of pest that I should be looking out for. I'm starting a new ("OMG") dahlia this year and it's pricey! I don't want to lose it. :D

Thanks!

Erin
Thumb of 2018-05-10/ErinGerg/068207


Thumb of 2018-05-10/ErinGerg/ca0717


Thumb of 2018-05-10/ErinGerg/ed303c
Avatar for Oberon46
May 10, 2018 7:32 PM CST
Name: Mary Stella
Anchorage, AK (Zone 4b)
Dahlias Canning and food preservation Lilies Peonies Permaculture Ponds
Garden Ideas: Level 2
Looks almost like botrytis which affects peonies. My guess would be rot, too wet. You could try a 10% bleach solution just in case it is a fungus
Image
May 11, 2018 7:08 AM CST
Name: Erin
Pittsburgh, PA (Zone 5b)
Oberon46 said:Looks almost like botrytis which affects peonies. My guess would be rot, too wet. You could try a 10% bleach solution just in case it is a fungus


Yes, they didn't get any additional watering from me, and they were quite dry (enough that I was getting worried about them being too dry), but then we got two storms, two days in a row which I suppose may have done it. The tubers are firm when I poke, so someone has suggested to me that it is stem rot.

Would you dump the pot and start over, or just spray the soil as is and wait for a new shoot?
Avatar for Oberon46
May 11, 2018 4:55 PM CST
Name: Mary Stella
Anchorage, AK (Zone 4b)
Dahlias Canning and food preservation Lilies Peonies Permaculture Ponds
Garden Ideas: Level 2
I would treat the stem rot and leave them alone. If the tubers are firm, you stand a good chance that they will send up new eyes. lol. I had written a long note regarding the hardiness of peonies that have shown rot and then realized that I was (once again) mixing up my favorite plants.
Last edited by Oberon46 May 11, 2018 4:57 PM Icon for preview
Image
May 20, 2018 2:02 PM CST
Name: Erin
Pittsburgh, PA (Zone 5b)
They actually seem to be doing quite well now. I'm not sure what happened, but they are both growing two healthy looking stems where there was one without issue.
Avatar for Oberon46
May 22, 2018 10:39 AM CST
Name: Mary Stella
Anchorage, AK (Zone 4b)
Dahlias Canning and food preservation Lilies Peonies Permaculture Ponds
Garden Ideas: Level 2
That's great. Maybe they just got a bit of 'spring nip.'
You must first create a username and login before you can reply to this thread.
  • Started by: ErinGerg
  • Replies: 5, views: 1,237
Member Login:

( No account? Join now! )

Today's site banner is by Zoia and is called "Pansy bucket"

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.