Growing Blue Poppy From Seed Obtain blue poppy seeds from a seed exchange or collect them from a plant in summer. Start the seeds indoors in March or April using a moistened seed-starting mixture of perlite, peat and gypsum. Sterilize shallow seed trays with warm water and bleach mixture before use. Click to see full answer. Likewise, how do you grow Himalayan poppies?Blue Poppies demand a rich well draining soil in an area of partial shade. If planting a single plant, dig a large hole about 18 inches by 18 inches deep. Mix one part compost or well rotted manure, one part fine bark mulch (composted for 2 – 3 months, if possible), and two parts original soil.One may also ask, can you grow meconopsis in pots? Start in pots in a cold frame or indoors in March or April. Transplant 6-8 weeks after sowing. Keep soil moist, but not standing in water. Meconopsis does not respond well to transplanting, and at the best of times germination itself can be tricky. Likewise, people ask, how do you germinate meconopsis seeds? Meconopsis seed requires light to germinate so either surface sow and cover with a thin layer of vermiculite to anchor seeds and prevent drying out or, alternatively, top off the pot with damp perlite and sow the seed into this. Meconopsis seed has short term viability.How do you treat meconopsis?Regular watering during dry periods in summer to keep the soil moist. No need to water in the winter as the plant prefers a dry soil whilst resting. Cut back to the ground in autumn. Replace regularly as Meconopsis do not live for long time.