Papaver orientale has a hardiness zone of 3-8 average. It usually thrives in light calcareous soil and in full sun or part shade. Seeds are sown after the potential of frost has past, the average temperature is approximately 21 °C and when soil has thoroughly warmed. The seeds are sown at a depth of about one centimeter, or less as light may stimulate germination. Oriental Poppies do not handle transplanting or over-watering well. Germination period is 10–20 days. Mulch can be used to protect the plant over the winter and cutting off the stem will produce a second flower.
'G.I. Joe' produces red flowers with extra numbers of petals, making it a "double" flowering form.
Read more:
Oriental Poppy Varieties | Garden Guides

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