The Sutton Seeds Cornflower Polka Dot Mix is a bushy plant that grows with a variety of bright colours. It's very easy to grow and is great for beds and borders. To get the best results, sow the seeds outdoors in March or May for flowers from June to September, or sow during August and September to flower the following year from June to July. This hardy annual plant typically grows to a height of 38-45cm (15-18").