Young Beta, Rainbow Chard and Sweetcorn, 'Lark' plants in pots growing under cover in a greenhouse.

Swiss chard, Beta vulgaris 'Bright Lights', close up of the colourful stems.

Beetroot, Beta vulgaris 'Dewing's Early' in flower. Green flower spikes on dark red branching stems.

Beetroot, Beta vulgaris 'Dewing's Early' in flower. Green flower spikes on dark red branching stems.

Beetroot, Beta vulgaris 'Dewing's Early'. Green leaves of growing beetroot with red stems and veining.

Swiss Chard, Beta vulgaris 'Bright Lights'.

Tulip, Tulipa x gesneriana, also known as Didier's Tulip and Garden Tulip, Close up of pink coloured flowers growing outdoor.

Tulip, Tulipa x gesneriana, also known as Didier's Tulip and Garden Tulip, Mass of multi coloured flowers growing outdoor.

Tulip, Tulipa x gesneriana, also known as Didier's Tulip and Garden Tulip, Mass of multi coloured flowers growing outdoor.

Tulip, Tulipa x gesneriana, also known as Didier's Tulip and Garden Tulip, Mass of multi coloured flowers growing outdoor.

Tulip, Tulipa x gesneriana, also known as Didier's Tulip and Garden Tulip, Mass of multi coloured flowers growing outdoor.

Ipheion, Springstar, Ipheion uniflorum, Mass of mauve coloured flowers growing outdoor.

Ipheion, Springstar, Ipheion uniflorum, Mass of mauve coloured flowers growing outdoor.

Roxbury russet apple, Malus x Roxbury Russet, White blossoms growing on the tree outdoor.

Viburnum, Mohawk viburnum, Viburnum x Burkwoodii Mohawk, Detail of tiny white flowers growing outdoor.

Viburnum, Mohawk viburnum, Viburnum x Burkwoodii Mohawk, Detail of tiny white flowers growing outdoor.

Viburnum, Mohawk viburnum, Viburnum x Burkwoodii Mohawk, Detail of tiny white flowers growing outdoor.

Viburnum, Mohawk viburnum, Viburnum x Burkwoodii Mohawk, Mass of tiny white flowers growing outdoor.