Lavender
Lavandula
An ornamental plant, planted April to May or September to October, or sown February to March.
In September: trim the lavender now it has flowered. It can be planted out now.
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Lavender, 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. | none | none | none | none | none | usual | usual | none | none | none | none | none |
| Plant out. | usual | usual | none | none | none | none | none | none | none | none | none | none |
| Plant a pot-grown lavender. | none | none | none | none | none | none | none | usual | usual | none | none | none |
| Trim the lavender. | none | none | none | none | none | none | none | usual | none | none | none | none |
| Deadhead the lavender. | none | none | none | none | none | none | none | none | usual | usual | usual | usual |
| Trim the lavender now it has flowered. | usual | none | none | none | none | none | none | none | none | none | none | usual |
What to do, and when
The usual months for a UK garden. Your own plan gives the week.
Sowing and planting
Sow under cover February to March, on the surface. Moderate sources: Sarah Raven, Mr Fothergill’s and RHS.
Plant out September to October, 30cm apart. Moderate source: Mr Fothergill’s.
Plant a pot-grown lavender April to May, 90cm apart. Strong source: RHS.
Trim the lavender
Clip over untidy or frost-damaged growth, but not into the woody stems, which rarely regrow.
Usually April. Moderate source: RHS.
Deadhead the lavender
Usually May to August. Strong source: RHS.
Trim the lavender now it has flowered
Remove the spent flower stalks and about 2.5cm of leafy growth.
Usually August to September. Strong source: RHS.
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 “Lavender” comes from.