Growli

Plant care

Red-Topped Sage (Annual Clary) care

Salvia viridis

Also called Red-Topped Sage, Annual Clary, Painted Sage, Annual Clary Sage.

RHS H2USDA 4–11Pet-safeIndoor 40–55 cm tall

Watering rhythm

Direct sun (at least 4-6 hours)

Water when the top 3 cm of soil feels dry

Light

Direct sun (at least 4-6 hours)

Soil

Well-drained, light to moderately fertile loam or sandy soil

Humidity

Low to moderate (30–50%)

Temp

15–25°C

Pet safety

Pet-safe

Mature size

40–55 cm tall

Care at a glance

Light

Aim for at least 4-6 hours of direct sun on the leaves. Requires full sun (6–8 hours daily) for compact growth and vivid bract colour; plants grown in shade become tall and leggy with dull colouring. If your only bright window faces south, that's perfect for red-topped sage — same window any aroid would fry on.

Watering

Watering red-topped sage: water when the top 3 cm of soil feels dry. The number that matters isn't the day of the week — it's how dry the top 2-3 cm of the pot feels. A finger in the soil tells you more than a watering app. After every watering, tip the saucer. Moderately drought-tolerant once established; avoid waterlogging as this Mediterranean native is prone to root rot in persistently wet soils.

Soil and pot

Red-Topped Sage grows best in well-drained, light to moderately fertile loam or sandy soil. Tolerates poor and alkaline soils; rich, heavy soils result in rank leaf growth and a risk of botrytis; good drainage is essential. A pot with a working drainage hole is non-negotiable for this species — even free-draining mix will turn soggy in a closed planter. If you love the look of a decorative pot without a hole, use it as a cachepot around an inner nursery pot you can lift out to water.

Humidity and temperature

Red-Topped Sage sits happiest at around Low to moderate (30–50%) humidity and 15–25°C (59–77°F). Prefers drier air conditions in keeping with its Mediterranean origin; high humidity increases powdery mildew risk, especially on dense plantings. If you keep the room above 15–25°C year-round and avoid placing the plant near a cold draught, a hot radiator, or an air-conditioning vent, you have already handled the two biggest indoor stressors.

Fertilising

Feed red-topped sage sparingly. A single application of balanced granular fertiliser at planting time is usually sufficient; too much nitrogen suppresses bract colour and produces soft, disease-prone growth. Skip fertiliser entirely on a stressed, recently-repotted, or actively wilting plant — fertiliser salts make damage worse, not better. Wait for a round of healthy new growth before resuming a feeding rhythm.

Common problems

Below are the issues we see most often on red-topped sage in the Growli community. Each is annotated with the most common cause so you know where to start.

  • AphidsColonies of aphids often colonise the soft new growth and coloured bracts; remove by hand or treat with insecticidal soap, being careful not to disfigure the ornamental bracts.
  • Botrytis (grey mould)Wet summers or overhead watering can trigger grey mould on the bracts and stems; improve air circulation, water at the base, and remove affected material promptly.

Propagation

Direct sow outdoors after the last frost, or start indoors 6–8 weeks before the last frost at 18–21°C; seeds germinate in 10–14 days. Self-seeding is reliable in mild climates. Propagation is the cheapest, most satisfying way to expand a collection — and it doubles as insurance against losing a mature plant to an accident. Take a backup cutting once the parent is established and healthy.

Toxicity to pets

Red-Topped Sage is pet-safe. Salvia species are listed as non-toxic to cats and dogs by the ASPCA. Salvia viridis poses no toxicity risk to household pets. If you keep cats, dogs, or curious children in the house, weigh placement carefully — a high shelf or a hanging planter is enough for casual safety. For severe ingestion incidents, call your local vet and the ASPCA Animal Poison Control Center (in the US, 888-426-4435).

Pet-safety status is sourced from the ASPCA Toxic and Non-Toxic Plant List, which catalogues the most-asked-about plants for cats, dogs, and horses.

Red-Topped Sage care — frequently asked questions

What is the common name for Salvia viridis?

Salvia viridis is most commonly called Red-Topped Sage, but it is also known as Red-Topped Sage, Annual Clary, Painted Sage, Annual Clary Sage. The names refer to the same species, so care instructions for Red-Topped Sage apply identically to anything sold as Annual Clary.

How much light does red-topped sage need?

Red-Topped Sage grows best in direct sun (at least 4-6 hours). Requires full sun (6–8 hours daily) for compact growth and vivid bract colour; plants grown in shade become tall and leggy with dull colouring.

How often should I water red-topped sage?

Water red-topped sage water when the top 3 cm of soil feels dry. Moderately drought-tolerant once established; avoid waterlogging as this Mediterranean native is prone to root rot in persistently wet soils. The finger-test (or lifting the pot to feel its weight) beats a fixed weekly calendar because pot size, light, and season all change how fast the soil dries.

Is red-topped sage toxic to cats and dogs?

Red-Topped Sage is pet-safe. Salvia species are listed as non-toxic to cats and dogs by the ASPCA. Salvia viridis poses no toxicity risk to household pets.

What USDA hardiness zone does red-topped sage grow in?

Red-Topped Sage is rated for USDA zone 4–11 (grown as annual) and RHS hardiness H2. Outside that range, grow it as a container plant that overwinters indoors before the first hard frost.

Red-Topped Sage deep-dive guides

Every aspect of red-topped sage care, each with its own calibrated guide:

Featured in these plant shortlists

Red-Topped Sage qualifies for 10 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

Related guides

Red-Topped Sage is also known as Red-Topped Sage, Annual Clary, Painted Sage, and Annual Clary Sage.