Suppress your weeds with a densely planted carpet of vibrant african daisies osteospermum 39snow pixie39 is one of the easiest ground cover plants you can grow and it39s hardy too so you can enjoy it year after year once established this versatile resilient perennial is happy in hot dry neglected conditions and it is particularly useful for tricky coastal sites famed for their long flowering period osteospermums bloom from june right through to october height 15cm 40634