I've allowed winter aconite to spread in one bed in our back yard over several years. It flowers in March in SE Michigan where we live, so we like seeing it. After it flowers, the leaves stay, slowly deteriorating, well into the summer. I've started to think they interfere with the other plants in the bed and they look raggedy as they die back. So last year, I took time to carefully remove them all, roots, leaves, and stems, around mid-June. I didn't figure they would disappear, but I expected they would be cut back. Instead, this year they are more abundant than ever, in places they never have been before, and dotting our front yard with uninvited yellow flowers. I haven't seen this plant on lists of invasives, but they are moving into that column for me. But if digging them out just made them come back stronger, I'm not sure how to reduce them. Has anyone had experience managing winter aconite, and do you consider it invasive?

You say you are removing the roots, leaves, stems. Winter aconites have a bulb-like structure, too. Are you getting that? You also say they are popping up in new places since you dug. Squirrels love to investigate and dig where the soil is loosened (like where you dug). I'll bet they came in later, found the bulbs (or found bulbs you missed) and replanted them elsewhere in the yard. Squirrels plant walnuts and buckeyes in my yard from the neighbors trees a few doors down. Another possibility is ants spreading the winter aconite seeds around.

Thanks. I looked them up and did see that they're supposed to have tubers. I've done some more digging and found a few clumps that have small (1/2") tuberish things, but most of what I've dug up don't have anything like that. My strategy now is to get them out early instead of waiting til midsummer - maybe they won't have time to build up their superpower. Also, it was a pretty mild winter, so that may be a factor, too. Anyway, thanks for your comment.

So, yeah, the mature clumps have tubers, but if you get the roots, you've got the tuber.

I'm so jealous. I've been trying to establish Aconites in my garden for about 5years with no luck. Lucky you, I say. Definitely not invasive in my garden.