Here's a quick video about dividing perennial flowers. I hope you find it useful and to-the-point.
Most importantly, if you have questions about dividing perennials or if you're not sure about something, do enter a comment using the link below.
There are several points to emphasize in the video. This technique is done in very early spring just as the plants get going (or just before) and again in the fall. In this video, I'm dividing Hemerocallis (daylilies) but the same rules of thumb operate for every perennial plant.
I do try to leave some of the original plant in the ground to continue growing but this isn't necessary if you're trying to maximize the number of divisions you get. Dig it up - divide it into as many plants as you can and then simply replant one of them in your own garden.
This technique does not work on most shrubs or evergreens (there are some shrubs that throw "suckers" and you can dig up these suckers for new plants. But it's not quite the same thing as dividing a perennial.
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