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Plant care

Cleveland Sage (Jim sage) care

Salvia clevelandii

Also called Cleveland sage, Jim sage, Blue sage, Fragrant sage.

RHS H3USDA 8–11Pet-safeIndoor 90–120 cm tall and up to 150 cm wide

Watering rhythm

Direct sun (at least 4-6 hours)

Very infrequent after establishment — once monthly or less in summer

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Light

Direct sun (at least 4-6 hours)

Soil

Sandy or gravelly, sharply drained

Humidity

Low — below 50%

Temp

−7–38°C

Pet safety

Pet-safe

Mature size

90–120 cm tall and up to 150 cm wide

Care at a glance

Light

Cleveland Sage needs sun on the leaves, not just bright ambient room light. Requires full sun — a minimum of 6 hours of direct sunlight daily. In partial shade it becomes open and sparse and is much more prone to root disease. A south or west-facing windowsill in the northern hemisphere is the default; anywhere else, expect the plant to stretch and pale out within a season.

Watering

Water cleveland sage very infrequent after establishment — once monthly or less in summer. The actual day count varies with pot size, light, and season — the finger test (or lifting the pot to feel its weight) is more reliable than a fixed calendar. Empty any drainage saucer afterwards so the pot isn't sitting in water. Highly drought-tolerant once established (year two onward); in summer limit irrigation to once per month maximum or withhold entirely, mimicking the Mediterranean dry season of its native range.

Soil and pot

Cleveland Sage grows best in sandy or gravelly, sharply drained. Thrives in lean, low-fertility, fast-draining soils with pH 6.1–7.8; will not tolerate clay or organically rich soils that retain moisture. 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

Cleveland Sage sits happiest at around Low — below 50% humidity and −7–38°C (20–100°F). Adapted to low-humidity chaparral; high humidity combined with poor air circulation increases susceptibility to fungal diseases. If you keep the room above −7–38°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 cleveland sage sparingly. Little to no fertiliser needed; an annual light top-dress of compost in spring is sufficient. Excess feeding promotes lush, rot-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 cleveland sage in the Growli community. Each is annotated with the most common cause so you know where to start.

  • Root rot from summer irrigation — Phytophthora and Pythium root rots are triggered by summer watering on established plants; reduce or completely cease irrigation by June in Mediterranean-climate gardens.
  • Spittlebug (froghoppers) — Froghoppers (Philaenus spumarius) produce frothy masses on stems in spring and early summer; generally cosmetic but heavy infestations weaken young growth — blast off with a water jet.

Propagation

Semi-ripe stem cuttings taken in late summer root readily. Can also be grown from fresh seed sown in autumn, though named cultivars must be propagated by cuttings. 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

Cleveland Sage is pet-safe. Salvia species are listed as non-toxic to cats and dogs by the ASPCA. Cleveland sage is widely cited as pet-safe; the aromatic oils may cause mild gastric upset if consumed in very large quantities. 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.

Cleveland Sage care — frequently asked questions

What is the common name for Salvia clevelandii?

Salvia clevelandii is most commonly called Cleveland Sage, but it is also known as Cleveland sage, Jim sage, Blue sage, Fragrant sage. The names refer to the same species, so care instructions for Cleveland Sage apply identically to anything sold as Jim sage.

How much light does cleveland sage need?

Cleveland Sage grows best in direct sun (at least 4-6 hours). Requires full sun — a minimum of 6 hours of direct sunlight daily. In partial shade it becomes open and sparse and is much more prone to root disease.

How often should I water cleveland sage?

Water cleveland sage very infrequent after establishment — once monthly or less in summer. Highly drought-tolerant once established (year two onward); in summer limit irrigation to once per month maximum or withhold entirely, mimicking the Mediterranean dry season of its native range. 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 cleveland sage toxic to cats and dogs?

Cleveland Sage is pet-safe. Salvia species are listed as non-toxic to cats and dogs by the ASPCA. Cleveland sage is widely cited as pet-safe; the aromatic oils may cause mild gastric upset if consumed in very large quantities.

What USDA hardiness zone does cleveland sage grow in?

Cleveland Sage is rated for USDA zone 8–11 and RHS hardiness H3. Outside that range, grow it as a container plant that overwinters indoors before the first hard frost.

Cleveland Sage deep-dive guides

Every aspect of cleveland sage care, each with its own calibrated guide:

Featured in these plant shortlists

Cleveland Sage qualifies for 12 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

Related guides

Cleveland Sage is also known as Cleveland sage, Jim sage, Blue sage, and Fragrant sage.