|Could you please tell me the best time of year to divide oriental poppies and how to best accomplish it?
|After the leaves have dried up and disappeared, Oriental poppies can be divided. This is usually done in the summer, or late fall if the plant continues to put out new leaves until then. (It all depends on the weather!)
To divide poppies, or any perennial, just dig up the entire root mass with a spade and cut through the roots to make several new clumps. Or you can use two garden forks back-to-back to pry the clump apart. Then replant, water well, and wait for new growth. Once the plants begin putting out new leaves, you can side-dress with a handful of 10-10-10 fertilizer.