How to grow Rosemary in the UK
Salvia rosmarinus
Rosemary (Salvia rosmarinus) is a herb that grows well in UK gardens. Long-lived shrub if drainage is right. Avoid heavy clay — grow in a pot if so. This guide covers when and how to sow Rosemary, the soil and position it likes, watering and feeding, companion planting, and when to harvest.
When to sow & grow Rosemary
Sowing and harvest window through the year (UK):
Jan Harvest | Feb Harvest | Mar Harvest | Apr Harvest | May Plant · Harvest | Jun Harvest | Jul Harvest | Aug Harvest | Sep Harvest | Oct Harvest | Nov Harvest | Dec Harvest |
Soil, position & care
- Soil
- Poor, free-draining soil
- Soil pH
- 6.0–7.5
- Position
- Hot, sheltered, sunny spot
- Sowing depth
- Surface to 1 cm
- Spacing
- 20–30 cm apart
- Sowing
- Best from cuttings or plants; slow from seed
- Growing
- Drought-tolerant once established
- Harvest & upkeep
- Light trim after flowering — don’t cut into old bare wood
- Watch for
- Rosemary beetle
Companion planting for Rosemary
Grows well with:
Add Rosemary to your free 12-month plan and get watering & sowing reminders — no sign-up needed.
Rosemary FAQs
What grows well with Rosemary?
Rosemary grows well alongside Asparagus Pea, Broad Bean, Broccoli, Brussels Sprout, Cabbage, Carrot. Good companions can deter pests, attract pollinators or make better use of space.
How much sun does Rosemary need?
Rosemary prefers full sun (6+ hrs direct).
When is Rosemary ready to harvest?
Rosemary is typically ready to harvest in January, February, March, April, May, June, July, August, September, October, November, December in the UK.
Is Rosemary easy to grow?
Easy — good for beginners. Long-lived shrub if drainage is right. Avoid heavy clay — grow in a pot if so.