Salvia patens 'Alba' (Sage) — Clump-forming or bushy, upright

Overview

Salvia patens 'Alba' is a clump-forming or bushy, upright perennial in the genus Salvia, part of the Lamiaceae family, with deciduous, semi-evergreen or evergreen; aromatic, often textured or felted foliage. Salvia patens 'Alba' grows best in full sun, and tolerates light loam and sand or chalk soils and neutral to alkaline pH. Its UK hardiness is rated H3–H5 for shrubby kinds, H6–H7 for the hardy herbaceous species. It is native to Central Mexico.

About

A perennial in the sage family, Salvia patens 'Alba' forms upright, clump-forming growth with aromatic, often textured foliage. It is grown for its sequence of summer flowers from June to September. Plants suit a sunny, south- or west-facing, sheltered position with sharply drained soil. Avoid winter wet, which is the usual cause of loss.

Wikipedia contributors, CC BY-SA 4.0 — Salvia patens

About the genus

Salvia is the largest genus of plants in the sage family Lamiaceae, with just under 1,000 species of shrubs, herbaceous perennials, and annuals. Within the Lamiaceae, Salvia is part of the tribe Mentheae within the subfamily Nepetoideae. One of several genera commonly referred to as sage, it includes two widely used herbs, Salvia officinalis and Salvia rosmarinus.

Wikipedia contributors, "Salvia", CC BY-SA 4.0 — Salvia

In the garden

Salvia patens 'Alba' is a clump-forming perennial in the Lamiaceae, native to central Mexico. It develops an upright habit with aromatic, often textured or felted leaves and produces its flowering display from June to September. In the UK it is treated according to form: shrubby selections fall into H3–H5 — roughly borderline to hardy — while the more herbaceous types are H6–H7, meaning very to fully hardy in sheltered sites. It also corresponds to USDA zones 5–10. Site plants in full sun on a light loam, sand or chalky soil with a neutral to alkaline reaction; these conditions favour flowering and reduce overwintering problems. Good drainage is essential — the species dislikes winter wet — and a south- or west-facing, sheltered aspect will improve survival through cooler months. Exposure should be sheltered rather than fully open. Use Salvia patens 'Alba' where a summer-flowering perennial is needed in borders, gravel beds or sunny containers placed against a warm wall. Keep soil sharply drained and positioned to the south or west to minimise the risk of winter wet, which is the most common cause of loss for this plant.

Growing conditions

Best soil and position for Salvia

Sunlight: Full sun
Soil type: Light loam, sand or chalk
Soil pH: Neutral to alkaline
Soil moisture: Sharply drained; winter wet is the usual cause of loss
Aspect: South or west facing
Exposure: Sheltered
UK hardiness: H3–H5 for shrubby kinds, H6–H7 for the hardy herbaceous species

Plant details

Salvia patens 'Alba' size, habit and characteristics

Plant type: Perennial
Habit: Clump-forming or bushy, upright
Foliage: Deciduous, semi-evergreen or evergreen; aromatic, often textured or felted
Native to: Central Mexico

Care notes

Pruning and caring for Salvia patens 'Alba'

Cultivation: Drainage matters more than cold — most losses come from sitting wet through winter rather than from low temperature. Give the sunniest, sharpest-draining spot available, delay cutting back until spring so old growth shelters the crown, and take insurance cuttings of anything tender.
Pruning: Leave the top growth intact over winter, then cut back to a low framework of live buds in mid-spring once the frosts have passed. Deadhead through summer to extend flowering.
Propagation: Softwood and semi-ripe cuttings root very easily from spring to late summer, which is the standard insurance against winter losses. Divide hardy herbaceous kinds in spring.
Pest resistance: Aromatic foliage deters most pests; capsid bug and leafhopper occasionally cause spotting.
Disease resistance: Robust in dry conditions. Powdery mildew and root rot appear only where the soil stays wet.

Frequently asked questions

How do I grow Salvia patens 'Alba'?

Drainage matters more than cold — most losses come from sitting wet through winter rather than from low temperature. Give the sunniest, sharpest-draining spot available, delay cutting back until spring so old growth shelters the crown, and take insurance cuttings of anything tender.

Where is the best place to plant Salvia patens 'Alba'?

Salvia patens 'Alba' prefers full sun. It suits sheltered positions.

What soil does Salvia patens 'Alba' need?

Salvia patens 'Alba' grows best in light loam and sand or chalk soil. It prefers neutral to alkaline soil. Aim for soil that stays sharply drained; winter wet is the usual cause of loss.

How do I prune Salvia patens 'Alba'?

Leave the top growth intact over winter, then cut back to a low framework of live buds in mid-spring once the frosts have passed. Deadhead through summer to extend flowering.

Is Salvia patens 'Alba' hardy in the UK?

Salvia patens 'Alba' has an RHS hardiness rating of H3, meaning it is half-hardy, tolerating -5 to 1°C, and may need winter protection in colder areas.

How do I propagate Salvia patens 'Alba'?

Softwood and semi-ripe cuttings root very easily from spring to late summer, which is the standard insurance against winter losses. Divide hardy herbaceous kinds in spring.

More in the Salvia genus

Browse all Salvia →