Add a pop of colour with our quality colourboost products! Oliver Seeds stock a variety of colour boost seeds, perfect for brightening up your garden or meadow. These expert colourboost seed mixes are designed for both domestic and agricultural clients. Our colour boost products are designed to create a robust and attractive display in any park, public open space or golf course. Our colour boost flowers have a long flowering period from 8 weeks after sowing up until the first frosts.