Easter Cress Chick Mixed Colours. Each kit comes complete with seeds, soil and a themed pot ready to grow your characters hair. Simply add water and sow the seeds and your pot will start growing hair in as little as 7 days. Collect all four! We believe gardening should be fun and easy to do. Our Grow Hair Kits have been specially designed to provide the best conditions for the seeds to germinate. Ryegrass is very easy to grow year-round indoors and outdoors. Dimensions: 6 x 6 x 4.5cm