Hardy annuals
Such as calendula, cornflower, nasturtium, poppy, sunflower, and sweet pea.
Sow under cover: Feb-Mar (soil temp 8-12°C).
Sow outdoors: Mar-April (soil temp 6-12°C).
Hardy salads and veg
Such as carrots, lettuce, radish, rocket.
Sow under cover: Feb-April (soil temp 10-18°C).
Sow outdoors: March-Sep (soil temp 8-18°C).
Half-hardy flowers
Such as cosmos, tithonia and nicotiana.
Sow under cover: Mar (soil temp 16-24°C) – seeds are best sown indoors.
Tender perennials
Such as dahlia and salvia.
Sow under cover: Jan-Feb (soil temp 18-24°C) – seeds are best sown indoors.
Frost-tender veg
Such as chillies, tomatoes and cucumber.
Sow under cover: April (soil temp 16-28°C).
Sow outdoors: May-June (soil temp at least 10°C).
Hardy perennials
Such as echinacea, rudbeckia and lupin.
Sow under cover: Jan-Feb (soil temp 18-21°C).
Sow outdoors: April-June (soil temp at least 10°C).
Biennials
Such as forget-me-not, foxglove and hollyhock.
Sow under cover: June (soil temp 12-18°C).
Sow outdoors: April-June (soil temp 10-18°C).