920x Ten Week Stock Large Flower Mix Seeds This mix, which is mostly made up of double flowers, offers a range of calming hues and pleasant fragrances. Beautiful combinations of white, pink, and red make for stunning displays for borders and pots. Growing instructions: From March to May, sow thinly, 1.5 cm deep, into carefully prepared, well-dug, healthy soil that has already been watered. Typically, seedlings germinate within around 14–21 days. keep the plants well-watered. Water plants thoroughly after planting especially during warm days. Flowering from April through to August.