Snapdragon: when to sow, plant and see it flower
Sowing, planting and flowering dates for your climate, with growing advice.

Photo: anncapictures, 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.
| Climate | Sow under cover | Plant out | Flowering |
|---|---|---|---|
| South and east of England | 26 January – 21 April; 4 September – 3 October | 22 April – 22 May | 22 June – 3 November |
| South-west England and Wales | 15 January – 10 April; 20 September – 19 October | 11 April – 11 May | 11 June – 19 November |
| Midlands, northern England and Northern Ireland | 6 February – 2 May; 29 August – 27 September | 3 May – 2 June | 3 July – 28 October |
| Scotland | 16 February – 12 May; 20 August – 18 September | 13 May – 12 June | 13 July – 19 October |
| Ireland | 23 January – 18 April; 11 September – 10 October | 19 April – 19 May | 19 June – 10 November |
Growing
- Life cycle
- Annual (sown and in flower the same year)
- Family
- Plantaginaceae
- Latin name
- Antirrhinum majus
- Cold tolerance
- Half-hardy (dislikes hard frost)
- Emergence
- 7–14 days
- Spacing
- 10–30 cm
Sources
- Gerbeaud — flower and bulb fiches (cosmos, souci, capucine, tournesol, alysse, zinnia, nigelle de Damas, coquelicot, pavot de Californie, pois de senteur, muflier, reine-marguerite, ipomée, mauve annuelle, annuelles rustiques, giroflée ravenelle, digitale, myosotis, pensée, rose trémière, pâquerette, lupin, ancolie, delphinium, échinacée, rudbeckia, gaillarde, achillée, tulipe, crocus, jacinthe, perce-neige, muscari, ail d'ornement, dahlia, glaïeul, lis, bulbes d'automne, profondeur de plantation)
- Jardiner Malin — flower and bulb fiches (same species; the lin, bleuet and lavatère pages are seed product pages, and lin is red flax)
- RHS — Plant pages (hardiness ratings H1-H7)
- The Old Farmer's Almanac — flower growing guides (cosmos, calendula, marigolds, nasturtiums, sunflowers, sweet alyssum, zinnias, sweet peas, snapdragons, morning glories, poppies, bachelor's buttons, foxglove, pansies, hollyhocks, lupines, columbine, delphiniums, coneflowers, black-eyed Susans, yarrow, dianthus, tulips, daffodils, crocuses, hyacinths, snowdrops, dahlias, gladiolus, lilies)
- Johnny's Selected Seeds — Flower Growing Guide and key growing information pages