Persian carpet zinnia is a selection of small varieties with two-tone flowers combining different shades of red, orange, yellow and white depending on the plant. Ideal for bringing a touch of sunshine to a bed, zinnias will measure 35 cm in height. Zinnias will be indifferent to the nature of the soil. Sow the seeds at a depth equal to the diameter of the seed and keep the soil moist but not soggy. Successfully sowing Persian carpet zinnia Sowing in a pot or tray: Sow from March to May in pots or trays between 21 and 30 ° C, in a fine seed compost. Place a few seeds per pot, cover the seeds with soil and firm down. Keep the soil cool until emergence. Germination can take between 5 and 10 days. Sowing in open ground It is also possible to sow in open ground in May once the risk of frost has passed, after working the soil to make it soft and adding seed compost. Sow the seeds thinly. Cover the seeds with seed compost. Firm and water finely. Planting Transplant zinnias in spring in May in a sunny location. Flowering Flowering appears from July to October.