The inner arrows of the flower change color due to unknown factors. I know that the same flower can have pink stripes when it blooms early in the morning, and dark blue when the sun bakes well.
Seeds are planted after preparing the soil, in April - May. It is better to choose a warm sunny day. We make small furrows - approximately 2 cm deep. We plant the prepared seeds not densely, at a distance of 5-7 cm from each other. Cover with loose soil on top, compact slightly. Under good conditions, sprouts appear in a week.
Go to my profile))) there are even many interesting seeds and plants.