Summer

R. ‘Alchymist’

Roses from Sissinghurst: 15 of the best

Pelargonium ‘Berkswell Harmony’. A highly distinctive, two-toned cultivar with burgundy upper and pink lower petals and intricate claret ‘feathering’ (fine lines). It’s tall, and needs staking. Aim for three to four leaders initially with constant pinching out to create a full bush that eventually supports itself. 60cm. RHS H1C†.

Angel pelargoniums: choosing and growing the best Angel pelargoniums

NIGELLA DAMASCENA

80 beautiful and sustainable plants

Clematis 'Buckland Beauty'

Which late-flowering clematis to choose

Verbena bonariensis 'Lollipop'

How to grow verbena

Paeonia 'Cora Louise'

Intersectional peonies: plants that can last for 100 years

Penstemon

Penstemon: how to grow, plus 16 of the best varieties

Clematis ‘Étoile Rose’. A delightful, semi-nodding clematis. The flowers range in colour from deep pink to pale mauve, and have silvery-pink margins that curve slightly, with the centres a darker shade of pink. A more vigorous type that can be used to enhance a large shrub or to cover a sizeable wall or fence. 2.5m. RHS H4.

Herbaceous clematis: choosing and growing the best herbaceous clematis

Benton End in Suffolk, where the artist and gardener Cedric Morris and his partner Arthur Lett-Haines moved in 1940, is where Morris bred many of his beautiful and painterly coloured bearded irises

Benton irises: how to choose and grow them

Tulipa ‘Estella Rijnveld’ One of the best of the Parrot tulips, the petals exuberantly ruffled in red and white. Raised in the Netherlands in 1954 by Dr de Mol and named after his wife. Flowers in May. 55cm. RHS H6, USDA 3a-8b.

Gardens to visit

Best tulips to plant: 24 from Belcombe Court

Dahlia 'Honka Fragile'

Designers' favourite dahlias

Indoor-to-outdoor container

An indoor-to-outdoor planting combination

Rosa gallica ‘Versicolor’ (rosa mundi)

Eight stunning roses from a designer's garden

The zestful planting of the main borders of the garden seems to be a continuum of colourful plants but they are bisected by grass paths. In the foreground the punchy, red flowers of Monarda ‘Jacob Cline’ float around the purple flowers of Salvia nemorosa ‘Amethyst’.

Layered perennial planting in a Cheshire garden

The deep beds are crammed with a complex tapestry of perennial interest, with an emphasis on foliage that ranges from the fresh, grassy growth of Hakonechloa macra to the deep-plum leaves of Cercis canadensis ‘Forest Pansy’.

Planting for a dry and shady urban garden