Annual mallow: when to sow, plant and see it flower

Sowing, planting and flowering dates for your climate, with growing advice.

Annual mallow

Photo: Erbs55, Pixabay Content License · image resized

When to sow and plant in your region

Average dates, computed from the frost dates of each climate. For your exact dates, choose your town.

ClimateSow under coverSow outdoorsPlant outFlowering
South and east of England20 February – 21 April20 May – 21 June20 May – 17 June22 June – 3 October
South-west England and Wales9 February – 10 April22 May – 19 June22 May – 19 June11 June – 19 October
Midlands, northern England and Northern Ireland3 March – 2 May1 June – 2 July1 June – 29 June3 July – 2 October
Scotland13 March – 12 May13 June – 12 July13 June – 11 July13 July – 12 October
Ireland17 February – 18 April1 June – 29 June1 June – 29 June19 June – 10 October

Growing

Life cycle
Annual (sown and in flower the same year)
Family
Malvaceae
Latin name
Lavatera trimestris
Cold tolerance
Tender (killed by frost)
Soil temperature to germinate
15 °C minimum
Spacing
40–60 cm

Sources