Giant poppy pods (likely referring to Papaver somniferum, also known as opium poppy) are best planted in the fall, as they are cool-season annuals requiring cold stratification for optimal germination. Direct sowing in the garden is recommended, as they don't transplant well due to their taproot.Seeds should be scattered on the soil surface and lightly pressed in, as they need light to germinate. Keep the soil consistently moist until germination, which can take 2-6 weeks.