Each tin contains 20 seed balls, enough to cover 1 square metre in a garden bed or 3-5 medium sized pots (leave at least 10cm between each ball). Each ball contains approximately 30 seeds per ball from a mix of Meadow buttercup, Oxeye daisy, Red clover, Self heal and Yarrow. Best scattered in Spring or Autumn. The ideal mix for garden flower beds! Curated by wildflower conservation organization Plant life, this mix includes five native wildflowers that are most likely to thrive in the nutrient rich soils commonly found in our gardens. Proceeds from the sale of every tin go directly to supporting Plant life's new nature reserve – Greene Moor in Cornwall. We make the seed balls ourselves from our HQ in North London - from a mixture of UK native wildflower seeds, clay, peat-free compost and chilli powder. The clay protects the seeds from wildlife, and once water has permeated the clay, the seeds inside will germinate, helped along by nutrients and minerals contained within the ball.