Snapdragon
Antirrhinum majus
An ornamental plant, sown January to March or August to September.
In September: clear away the dead snapdragon stems and leaves. It can be sown under cover now.
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Snapdragon, month by month
Bar: the usual months. Sprout: this month.
| Sowing, planting or job | Sep | Oct | Nov | Dec | 2027Jan | Feb | Mar | Apr | May | Jun | Jul | Aug |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sow under cover. | usual | none | none | none | usual | usual | usual | none | none | none | none | usual |
| Plant out. | none | none | none | none | none | none | usual | usual | usual | none | none | none |
| Pinch out the tips of the snapdragon. | none | none | none | none | none | none | none | none | none | usual | none | none |
| Stake the snapdragon. | none | none | none | none | none | none | none | none | none | usual | usual | usual |
| Clear away the dead snapdragon stems and leaves. | usual | usual | usual | none | none | none | none | none | none | none | none | none |
What to do, and when
The usual months for a UK garden. Your own plan gives the week.
Sowing and planting
Sow under cover January to March, and August to September, on the surface, 30cm apart. Strong sources: RHS and Gardeners’ World.
Plant out March to May, 30cm apart. Moderate sources: RHS and Sarah Raven.
Pinch out the tips of the snapdragon
Pinch out the growing tip so the plant bushes out; cutting stems for vases does the same.
Usually June. Moderate source: Sarah Raven.
Stake the snapdragon
Stake them, or let them grow up through jute netting stretched flat above the plants.
Usually June to August. Moderate source: Sarah Raven.
Clear away the dead snapdragon stems and leaves
Pull up the whole plant and compost it; kept over winter, it can harbour disease.
Usually September to November. Moderate source: Sarah Raven.
What the source words mean
Strong: the RHS page for this plant is among them.Moderate: another trusted UK source, or the RHS on its group.
Every line above names the page it comes from. Where we found no good source for a job, we left it out. Where the name “Snapdragon” comes from.