How to Grow Salvia
Annual
Annual bedding salvias provide upright spires of intense red, purple, blue or white flowers above neat foliage. They are tender plants that bring structure and rich colour to summer schemes. The nectar-rich flowers of suitable single forms can be popular with pollinators, especially when planted in a warm, sunny position.
Planting
Sow under cover from February to April at 18 to 21 degrees C, or buy plugs and bedding plants in spring. Plant outside only after the last spring frost, spacing 25 to 35 cm apart. Harden plants off for at least a week and choose full sun with sheltered conditions and free-draining soil. Late May is usual in much of the UK; colder northern and Scottish gardens may need to wait until early June.
Care
Water while plants establish and keep containers evenly moist in dry spells. Remove spent flower spikes to encourage branching and further blooms. Avoid overfeeding, which can produce soft growth, but give container plants a light, regular feed following fertiliser label instructions. Shelter tall types from strong wind and remove damaged foliage to maintain a healthy, tidy display.
Bloom time
Annual salvias typically flower from June or July until the first frosts. Early-raised plants in a warm southern border may start in June, while later planting or cooler northern weather can delay the first spikes.
Garden uses
Use salvias as upright punctuation in sunny borders, formal bedding displays and large patio pots. Their strong colours look particularly good with silver foliage, petunias or yellow marigolds. Choose open-flowered types for wildlife planting and check RHS Plants for Pollinators listings when pollinator value is a priority.
Tips
Do not confuse tender bedding salvia with hardy perennial salvias, which have different winter behaviour and planting needs. Plant in repeated groups for a clearer visual effect. Pinch out young plants once established if you want a bushier shape, but leave taller cutting varieties to develop their main flowering stems.
Growing Salvia: frequently asked questions
How do I grow salvia in the UK?
Sow under cover from February to April at 18 to 21 degrees C, or buy plugs and bedding plants in spring.
When does salvia flower?
Annual salvias typically flower from June or July until the first frosts.
How do I care for salvia?
Water while plants establish and keep containers evenly moist in dry spells.
General guidance for UK gardens. Timing and hardiness vary by region and season; the RHS or a local garden centre can advise for your area. Page updated 18 Sep 2026.