Mature size & growth rate

How big does Anise-scented Sage (Salvia guaranitica) get?

Also called Anise-scented Sage, Blue Anise Sage, Brazilian Sage.

More about anise-scented sage

About Anise-scented Sage

Salvia guaranitica · also called Anise-scented Sage, Blue Anise Sage · flowering

Anise-scented sage is a vigorous, tuberous-rooted subshrub native to South America (Brazil, Paraguay, Uruguay, and Argentina), prized for its deep cobalt-blue flowers held in near-black calyxes that bloom from late summer until hard frost. Brushing the wrinkled, hairy leaves releases a pleasant anise fragrance that gives the plant its common name. In the UK and cooler US zones it is grown as a half-hardy perennial — the tuberous roots can be lifted and stored like dahlias, or the whole plant overwintered in a frost-free space. The Salvia genus is listed as non-toxic to cats, dogs, and horses by the ASPCA.

Mature size: 1.0–1.5 m tall, 0.5–1.0 m wide.

Watch for — Stem floppiness and need for staking: The tall stems frequently flop without support, particularly in partial shade or rich soils — stake with canes and string in early summer before stems exceed 60 cm, or grow through a wire grid support.

Indoor size vs how big it gets in the wild

Anise-scented Sage is a garden shrub whose final size is set more by your secateurs than by the plant — pruning, not luck, decides how big it gets. Indoors and in a pot, expect 1.0–1.5 m tall, 0.5–1.0 m wide.. A pot, your light levels and a little pruning are what set the final size in a home, far more than the plant's theoretical potential.

Left unpruned it builds a woody framework that gets taller and wider every year; with annual pruning you hold it at whatever size suits the space.

Growth rate and years to mature

Anise-scented Sage is a fast grower. Realistically, expect two to four years from a young plant to a room-filling specimen in good light. Its feeding profile backs this up: apply a balanced slow-release fertiliser in spring; supplement with a monthly liquid feed through summer to sustain the long flowering period on this vigorous grower.

Want this turned into the right next pot at the right moment? The pot size calculator and the anise-scented sage repotting guide cover when and how much to size up — pot size is one of the biggest levers on how fast anise-scented sage grows.

How to keep anise-scented sage smaller

You are not stuck with the maximum size. For anise-scented sage specifically, these are the levers, in order of impact:

Prune anise-scented sage annually at the right time for its type — this is the primary, expected way to control its size.
Remove the oldest, thickest stems at the base each year to keep it open and within bounds.
Growing it in a large container rather than open ground naturally restricts the ultimate size.
Avoid heavy feeding if you want to limit growth — rich soil and lots of nitrogen drive bigger, faster shrubs.

The keep-it-smaller method, step by step

Prune at the right time. Time the cut to anise-scented sage's type (after flowering for many spring shrubs, late winter for summer-flowering ones) so you do not lose the next display.
Take out the oldest stems. Remove up to a third of the oldest, thickest stems at the base to renew the shrub and contain it.
Shorten the rest. Cut the remaining stems back to an outward-facing bud at the height and width you want.
Restrict the roots. For a permanent size cap, grow it in a large container rather than open ground.

How to grow anise-scented sage bigger or faster

If you want it to fill the space sooner, push the conditions rather than hoping — for anise-scented sage the accelerators are:

Plant it in open ground in good soil — far more vigorous than a container-restricted plant.
Full sun (which it wants) plus an annual mulch and feed gives the strongest growth.
Water well through the first establishment years; a settled root system drives the fastest size gain.

Light is almost always the ceiling. The anise-scented sage light requirements page covers exactly how bright a spot it needs to grow at its potential instead of stalling.

When anise-scented sage outgrows the room (or the pot)

"Too big" usually arrives as one of these signs for anise-scented sage:

It shades or crowds neighbouring plants, or blocks a path it used to clear.
Bare, woody, unproductive centres with growth only on the outside — a sign it needs renovation pruning.
It has clearly exceeded the space you allotted and an annual trim no longer holds it.

If it is the pot rather than the room, it is a repotting job, not a goodbye — see the anise-scented sage repotting guide. If you want more of this plant instead of a bigger one, the anise-scented sage propagation guide turns prunings into new plants.

Anise-scented Sage size — frequently asked questions

How big does anise-scented sage get?

Anise-scented Sage reaches 1.0–1.5 m tall, 0.5–1.0 m wide. when grown indoors. Left unpruned it builds a woody framework that gets taller and wider every year; with annual pruning you hold it at whatever size suits the space.

Is anise-scented sage slow or fast growing?

Anise-scented Sage is a fast grower. Expect two to four years from a young plant to a room-filling specimen in good light. Anise-scented Sage is a garden shrub whose final size is set more by your secateurs than by the plant — pruning, not luck, decides how big it gets.

How long does anise-scented sage take to reach full size?

Roughly two to four years from a young plant to a room-filling specimen in good light. Light, pot size and feeding move that timeline more than anything else.

How do I keep anise-scented sage smaller?

Prune anise-scented sage annually at the right time for its type — this is the primary, expected way to control its size. Remove the oldest, thickest stems at the base each year to keep it open and within bounds. Growing it in a large container rather than open ground naturally restricts the ultimate size. Avoid heavy feeding if you want to limit growth — rich soil and lots of nitrogen drive bigger, faster shrubs.

How can I make anise-scented sage grow bigger or faster?

Plant it in open ground in good soil — far more vigorous than a container-restricted plant. Full sun (which it wants) plus an annual mulch and feed gives the strongest growth. Water well through the first establishment years; a settled root system drives the fastest size gain.