If it's crown or leafy gall, should I leave the bed empty next year and then solarize it in the summer? There is also mountain phlox and clover growing between the dahlias, as well as 2 lithodora plants and one beach strawberry. 9:45 PM CST Name: Jen Northern Michigan - near Alpen (Zone 5a) @MisterNight I haven't generally bothered with sterilized soil either- but now I suddenly have to because I had crown gall or leafy gall in multiple potted dahlia.

Understanding the Context

It's either leave like 30 pots sit fallow for 3-5 years or heat treat them somehow. Frustrating for sure. MSN: Dahlia gall could be wreaking havoc on your garden plants – here's how to spot it, and what to do if your plants are infected Ever heard of dahlia gall? I wouldn’t be surprised if you hadn’t – it’s not something I was familiar with before, either.

Key Insights

But since learning how to grow dahlias, I’ve stumbled across the term – and as ... Dahlia gall could be wreaking havoc on your garden plants – here's how to spot it, and what to do if your plants are infected Hey, welcome to the Dahlia forum and garden.org! I am not an expert, but I've been growing dahlias for several years now. I usually stumble upon gall at least once every digging season in my garden. It is usually from a new tuber (not my overwintered tubers, if I have to speculate, toss), and put the clump in the garbage.

Final Thoughts

I also dig out the soil where the plant grew, and also put it in the ... Leafy Gall, perhaps? I am not too happy to see this since I have a plant with the many leafy shoots shown near your pinky finger. I noticed that it was different from it's fellows earlier this year. I am sure that someone else with more first hand experience will chime in. Seeing more on leafy gall than the crown gall or crown gall that is more advanced.

I imagine maybe if I did not divide these so early it would have consumed the entire clump more like the images I have seen on google and all of the tubers would have it? | @petespetals | Post #2458051 (7) ShawnSteve 8:10 PM CST Name: Shawn S. Is this crown gall on dahlias? in the Dahlias forum - Garden.org Thanks for the laugh about the gall, Gary!