Answer: Poppies are pretty easy to grow (in my opinion). When to plant depends on how you want to plant. Do you want to sow seed indoors so you can set out transplants? If yes, then start seed indoors 6-8 weeks before the last frost date for your area. If you want to direct sow outdoors, sow the seed after all possibility of frost has passed. To make your soil more rich, all you need to do is work in some organic matter such as compost, composted cow manure, leaf mould, or mushroom compost. Any of these will make the soil rich, filled with nutrients, and improve the composition of the soil. Poppies grow best in full sun in an area with very good drainage. If your soil is wet, they will rot very easily. They should not be mulched in the winter for this very reason.
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