Primrose, Primula.

Primrose, Primula, Primula japonica, Candelabra primrose.

Dense, spherical head of purple-pink flowers of Primula denticulata.

Chelsea Flower Show 2013, RBC Blue water roof garden, Designer Prof Nigel Dunnett. Gold medal

Primrose, Primula.

Primrose, Primula vulgaris.

Cowslip, Primula veris.

Primula, Primrose, Primula vialii.

Primula, Primrose, Candelabra primrose, Primula beesiana.

Cowslip, Primula veris.

Primrose, Primula.

Primrose, Primula, Candelabra primrose, Primula japonica.

Campion, Lychnis flos-jovis. Side view of many slender stems with white flowers and pink calyxes against green background.

Marigold, Calendula officinalis. Close front view of one open orange flower with leaves behind. Selective focus.

Marigold, Calendula officinalis. Close front view of one open orange flower with leaves behind. Selective focus.

Marigold, Calendula officinalis. Close front view of one open orange flower with leaves behind. Selective focus.

Lesser celandine, Ranunculus ficaria 'Brazen Hussy', Several open daisy shape yellow flowers with yellow stamens.

Lesser celandine, Ranunculus ficaria 'Brazen Hussy', Several open daisy shape yellow flowers with yellow stamens.

Marguerite daisy, Argyranthemum frutescens cultivar, Front view of flower with mauve outer petals and cream inner petals.

Marguerite daisy, Argyranthemum frutescens cultivar, Side view of flowers with mauve outer petals and cream inner petals on long stems.

Chrysanthemum cultivar, Close cropped view of one shaggy pink flower with masses of inward curled petals, with turquiose behind.

Chrysanthemum cultivar, Close cropped view of one shaggy pink flower with masses of inward curled petals, with turquiose behind.

Ox-eye daisy, Leucanthemum vulgare, Wide angle close view of one white daisy flower with yellow centre and masses of others behind.

Ox-eye daisy, Leucanthemum vulgare, Wide angle close view of one white daisy flower with yellow centre and masses of others behind.