Growli

Plant care

Autumn Catchfly (Schafta Campion) care

Silene schafta

Also called Autumn Catchfly, Schafta Campion.

RHS H7USDA 4-9Pet-safeIndoor 15–20 cm tall

Watering rhythm

7-10days

Every 7–10 days in summer; reduce in winter

Light

Direct sun (at least 4-6 hours)

Soil

Well-drained, moderately fertile, gritty loam

Humidity

Low to moderate (30–60% RH)

Temp

-20°C to 28°C

Pet safety

Pet-safe

Mature size

15–20 cm tall

Care at a glance

Light

Autumn Catchfly needs sun on the leaves, not just bright ambient room light. Full sun yields the best flowering performance and most compact, tidy growth. Tolerates light partial shade but produces fewer flowers. A sunny, south-facing rock garden position is ideal for extending the flowering season into autumn. 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 autumn catchfly every 7–10 days in summer; reduce in winter. 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. Regular moisture during the long summer-to-autumn flowering period is important. Allow soil to partially dry between waterings. Drought-tolerant once established but flowers better with consistent summer moisture. Ensure good drainage in winter.

Soil and pot

Autumn Catchfly grows best in well-drained, moderately fertile, gritty loam. Accepts a wider range of soils than many alpines, including ordinary garden soil amended with grit. pH 6.0–7.5. Avoid waterlogged or very heavy clay soils. In containers, use an alpine mix of loam, grit, and leaf mould in equal parts. 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

Autumn Catchfly sits happiest at around Low to moderate (30–60% RH) humidity and -20°C to 28°C (-4°F to 82°F). Caucasian native tolerating a range of humidity levels. Dislikes prolonged high humidity combined with poor drainage. Good air circulation reduces the risk of fungal issues in warm, wet summers. If you keep the room above 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 autumn catchfly sparingly. Apply a balanced granular fertiliser at half the recommended rate in early spring. A second light feeding in midsummer extends the autumn flowering display. Avoid high-nitrogen feeds; they promote foliage at the expense of the notable late flowers. 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 autumn catchfly in the Growli community. Each is annotated with the most common cause so you know where to start.

  • Short-lived in heavy wet soilsSilene schafta can be short-lived (3–5 years) in poorly drained soils. Regular division every 2–3 years maintains vigour, or propagate by cuttings to have replacement plants ready.
  • Slug damage on new growthSoft autumn shoots emerging at the base are susceptible to slug grazing. Apply wildlife-safe iron phosphate pellets around the plant base in late summer to protect emerging growth.
  • Powdery mildew in late seasonA white powdery coating can develop on older leaves in hot, dry weather followed by humid nights in late summer. Remove affected leaves and ensure good air circulation; avoid overhead irrigation.

Propagation

Divide clumps every 2–3 years in early spring to maintain vigour. Take softwood cuttings 5–7 cm long in late spring; root in gritty compost in a cold frame. Sow fresh seed in autumn on the surface of gritty compost; cold stratification at 4°C for 4–6 weeks improves germination rates. 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

Autumn Catchfly is pet-safe. Silene schafta (family Caryophyllaceae) is not individually listed by ASPCA. The genus Silene and family Caryophyllaceae have no documented toxic principles in veterinary toxicology references. 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.

Autumn Catchfly care — frequently asked questions

What is the common name for Silene schafta?

Silene schafta is most commonly called Autumn Catchfly, but it is also known as Autumn Catchfly, Schafta Campion. The names refer to the same species, so care instructions for Autumn Catchfly apply identically to anything sold as Schafta Campion.

How much light does autumn catchfly need?

Autumn Catchfly grows best in direct sun (at least 4-6 hours). Full sun yields the best flowering performance and most compact, tidy growth. Tolerates light partial shade but produces fewer flowers. A sunny, south-facing rock garden position is ideal for extending the flowering season into autumn.

How often should I water autumn catchfly?

Water autumn catchfly every 7–10 days in summer; reduce in winter. Regular moisture during the long summer-to-autumn flowering period is important. Allow soil to partially dry between waterings. Drought-tolerant once established but flowers better with consistent summer moisture. Ensure good drainage in winter. 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 autumn catchfly toxic to cats and dogs?

Autumn Catchfly is pet-safe. Silene schafta (family Caryophyllaceae) is not individually listed by ASPCA. The genus Silene and family Caryophyllaceae have no documented toxic principles in veterinary toxicology references.

What USDA hardiness zone does autumn catchfly grow in?

Autumn Catchfly is rated for USDA zone 4-9 and RHS hardiness H7. Outside that range, grow it as a container plant that overwinters indoors before the first hard frost.

Autumn Catchfly deep-dive guides

Every aspect of autumn catchfly care, each with its own calibrated guide:

Featured in these plant shortlists

Autumn Catchfly qualifies for 11 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

Related guides

Autumn Catchfly is also commonly called Autumn Catchfly or Schafta Campion.