Can Corn Poppies Be Grown? Planting Methods and Precautions

The corn poppy (Papaver rhoeas) is a common flower in China and a plant in the poppy family, inheriting the poppy family's beauty and toxicity. Since opium poppies are prohibited from being grown in China, many people do not know whether corn poppies can be planted. So can corn poppies be grown?

Corn poppies can be grown, and they are suitable for direct sowing in the open ground. Generally, in February or March, choose a plot of fertile sandy loam soil, evenly sow the seeds in rows in the soil at a row and plant spacing of about 30*30cm, then cover with a thin layer of soil and sprinkle a little water. After the seedlings emerge, transplant them into flower pots. The specific planting techniques are as follows:

1. Planting time: generally early spring each year, that is, February or March, which is when the soil has just thawed.

2. Site selection: Corn poppies like places with ample light and good ventilation. They are cold-tolerant but not tolerant of moisture or heat. They should not be planted in overly fertile soil, should not be planted in continuous cropping, and should not be raised or planted in low-lying, damp places with heavy water and fertilizer or poor light, otherwise they will grow poorly and are prone to diseases. They are not strict about soil requirements, but loose, fertile sandy loam is best.

3. Pot culture: For potted corn poppies, in January use a flower pot with an inner diameter of 20 cm, fill it more than half full with loose old potting soil, press it flat, sow 20 to 30 seeds, cover with soil just until the seeds are no longer visible, and after sowing, soak the pot to let the water seep through.

4. Management techniques after planting:

(1) Thinning: Corn poppies are usually cultivated as biennials. When the seedlings have 5 to 6 leaves, thin them, with a plant and row spacing of generally 30×30 cm. Corn poppies do not tolerate transplanting, so direct sowing in the garden is best.

(2) Fertilizing: Corn poppies are usually given 2 to 3 applications of dilute liquid fertilizer before flowering, but fertilizer must not be applied too much, otherwise pests and diseases are likely to occur. For open-ground planting, apply thin fertilizer twice before overwintering, and apply liquid fertilizer once more before flowering. Apply one final topdressing before flowering to encourage large, brightly colored flowers and vigorous blooming.

(3) Watering: During the seedling growth period, corn poppies should not be watered too much, but the soil needs to remain moist. For open-ground planting, generally there is no need to water frequently. For pot culture, water once every 3 to 5 days depending on the weather and the potting soil. About 60% of the field soil's maximum water-holding capacity is better for the development of corn poppies. Water less during overwintering and more during spring growth.

Overall, corn poppies can be grown, and they can generally be directly sown in the open ground in February or March.