Russian sage: growing, spring pruning and how it differs from lavender

Russian sage in a sunny dry bed: position, planting, spring pruning to a low framework, winter, varieties, propagation and a comparison with lavender.

In short: Russian sage is an aromatic subshrub with blue-violet panicles that flowers from July to September. It wants full sun and poor, well-drained soil, and needs almost no feeding or watering. Do not cut it in winter; shorten the dry stems only in March or April, just above a pair of buds. Frost will not kill it, wet will.

Latin name	Salvia yangii, formerly Perovskia atriplicifolia; mint family
Height	50–150 cm depending on the variety
Flowering	July–September, sometimes into October
Position	full sun, dry well-drained soil
Hardiness	RHS H5, the tops are nipped by frost in winter but it regrows
Pruning	once a year, March–April

Russian sage looks like an overgrown lavender: silvery stems, grey-green leaves and, at the end of summer, a cloud of tiny blue-violet flowers. When you brush against it, it smells spicy, a little like sage. It is one of the few plants that looks better in August than in June on a scorching south-facing slope or by a hot wall.

Growing it is simple, as long as you do not try to "help" the plant. Most failures come from too much care: fertile soil, feeding and regular watering. Below is what Russian sage really needs, how to prune it and how it differs from lavender.

Russian sage or lavender?

The two plants are often confused in borders, and they are also happily planted together. They differ, however, in size, pruning and use.

	Russian sage	English lavender
height	50–150 cm	30–60 cm
leaves	deciduous, grey-green, toothed to divided	evergreen, narrow, entire
flowering	July–September	June–July
pruning	low above the ground in spring	after flowering and lightly in spring, never into old wood
use	ornamental, for pollinators	ornamental, drying, scented sachets, kitchen

Russian sage is not used in the kitchen or for tea, so grow it as an ornamental plant. If you are looking for lavender for drying and for the kitchen, see the article lavender – growing, pruning and use.

Why it is now called a sage

Since 2017 botanists have placed Russian sage in the sage genus (Salvia) as Salvia yangii. The original name Perovskia was derived from V. A. Perovsky, governor of Orenburg. In garden centres you will still mostly find it as Perovskia, and both names appear on plant labels.

Position: the poorer, the better

Russian sage comes from dry, scrubby slopes of Central Asia. What it needs in the garden corresponds to that:

Full sun for at least 6 hours a day. In partial shade the stems stretch, flop and there are few flowers.
Well-drained soil, even sandy, gravelly or chalky. The RHS states that it suits chalky, loamy and sandy soil.
No winter wet. In heavy clay, where water stands in winter, the roots rot. Such soil needs drainage or a raised bed.
No feeding. In fertile soil Russian sage grows tall, the stems are soft and fall to the sides.

It suits gravel and dry-loving beds, edges of paths, a south-facing wall, naturalistic plantings with grasses and slopes where other perennials would suffer from drought.

Planting step by step

Plant in spring, from April to June, when the soil has warmed up. Container plants can also be planted in summer, just water them afterwards.
Choose the sunniest spot you have and allow for a shrub width of 50–100 cm.
Mix heavy soil with coarse sand or fine gravel, even up to half.
Plant it at the same depth as it was in the pot. Do not plant deeper.
Water, and for the first month water once a week unless it rains. After that mostly only in long dry spells.
You can mulch the surface with gravel. An organic mulch that holds moisture around the crown does not suit it.

Pruning: once a year, in spring

Do not prune Russian sage in autumn. The silvery stems look good in winter and protect the lower buds. The RHS recommends leaving the stems over winter and pruning only in mid-spring.

Wait until the end of March or April, when tiny new leaves appear on the lower parts of the stems.
Shorten the stems to a low framework roughly 15–30 cm above the ground, always just above a pair of healthy buds or shoots.
Remove dry and weak stems completely.
An old neglected shrub that is bare at the bottom can be rejuvenated by cutting all the stems almost to the ground. It usually regrows and flowers the same year, only later.

If you leave Russian sage unpruned, it will be taller, sparser and floppier every year. Spring pruning is the main care it needs.

Winter: frost yes, wet no

The RHS places Russian sage in category H5, meaning it tolerates frosts down to roughly −10 to −15 °C without protection. In Czech winters the upper part of the stems is nipped by frost, but botany.cz states that the plant reliably regrows and then flowers. A much greater risk than frost is long winter wet in heavy soil. It does not need covering with evergreen branches or fleece; in a container, just wrap it for winter and put it against a wall under a small roof.

Varieties

'Blue Spire' – the classic upright variety, according to the RHS 1–1.5 m tall and 0.5–1 m wide, violet-blue panicles.
'Little Spire' – compact, according to the RHS 0.5–1 m, suitable for smaller beds and large containers.
Silvery Blue ('Lissvery') – distinctly silvery foliage.
'Blue Shadow' – a newer cultivar, appearing more and more often in nursery catalogues.

For a small garden or a container choose lower varieties. Tall ones suit the back of a dry bed or a low "hedge" along a path.

Propagation by cuttings

Russian sage is only exceptionally grown from seed; varieties are propagated by cuttings. The RHS gives softwood cuttings in late spring and semi-ripe cuttings in summer. From the plant cut 8–10 cm long tips of young shoots without flowers, remove the lower leaves, dip the cut end in rooting hormone and insert the cuttings in a well-drained compost with sand or perlite. Keep them in light without direct sun and slightly moist. It is better to leave the rooted young plants in a cool bright place for the first winter and plant them out in spring.

In the border: what to combine Russian sage with

Russian sage is among the best plants for pollinators in the second half of summer, and the flowers are besieged by bumblebees and honeybees. It combines well with grasses, sedums, coneflowers, echinacea, sages and lavender. A cool blue stands out next to yellow and orange. For inspiration on perennials that flower for a long time, see the article long-flowering perennials, and for grasses the overview ornamental grasses for the garden is suitable.

Frequently asked questions

When should I prune Russian sage?

In spring, in March or April, when new leaves start to appear. Shorten the stems to 15–30 cm above the ground, above a pair of healthy buds. Do not prune it in autumn.

Is Russian sage a lavender?

No. Both belong to the mint family, but Russian sage is a taller deciduous subshrub and is now classed in the sage genus as Salvia yangii. It flowers later than lavender and is not used in the kitchen.

Does Russian sage need watering?

Only after planting and, in the first summer, in a long dry spell. An established plant tolerates drought well, and overwatering harms it more than a lack of water.

Why is my Russian sage flopping?

It usually has too many nutrients or too much shade, or it was not pruned in spring. Poorer soil, full sun and an annual spring pruning to a low framework help.

Will Russian sage survive winter outdoors?

Yes. According to the RHS it tolerates frosts down to roughly −10 to −15 °C; in the Czech Republic the tops are nipped by frost, but it reliably regrows from the base. The main threat is winter wet in heavy soil.

Sources

Updated: 27 September 2026

Author: Jana Vránová, the editorial name of the Pěstík.cz team. She writes about the garden, herbs and essential oils. We take safety and dosage data from specialist literature and official sources, which we cite in every article.