FIVE TO SOW INDOORS NOW

1 ANTIRRHINUM MAJUS ‘ ROYAL BRIDE’

A tall and stately snapdragon, its 3ft-tall spikes are smothered with sweetly scented, pure white blooms.

2 COBAEA SCANDENS F. ALBA

A tender climber that can scramble to 20ft with white flowers that are borne prolifically from July until the first frosts.

3 PELARGONIUM ‘ MAVERICK QUICKSILVER’’

A vigorous summer-flowering geranium with 5in-wide, pale lavender flower heads on bushy, 18in-tall plants.

4 SWEET PEA ‘ HIGH SCENT’

One of the most strongly scented of all varieties, boasting beautiful creamy white petals with delicate, thin blue edges.

5 CLEOME HASSLERIANA ‘ VIOLET QUEEN’

A stunning spider flower, top, that produces 5ft stems bearing scented, purplish blooms from 20 weeks after sowing.