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Plant care

Rowallane quince (flowering quince) care

Chaenomeles x superba 'Rowallane'

Also called Rowallane quince, flowering quince.

RHS H6USDA 5-9Mildly toxic to petsIndoor 1.0–1.5 m tall × 1.5–2.5 m wide (3–5 ft × 5–8 ft)

Watering rhythm

2-3weeks

Weekly when establishing; every 2–3 weeks during dry spells once established

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Light

Bright indirect light (just back from a sunny window)

Soil

Well-drained loam, chalk, clay, or sandy soil

Humidity

Ambient outdoor (30–70%)

Temp

-15 to 25°C

Pet safety

Mildly toxic to pets

Mature size

1.0–1.5 m tall × 1.5–2.5 m wide (3–5 ft × 5–8 ft)

Care at a glance

Light

Bright but filtered. Rowallane quince burns within days in unfiltered south-facing summer sun, and stops growing within months in deep shade. Best flower production in full sun. Performs well on south- or west-facing walls; also tolerates an east-facing aspect. Avoid north-facing positions in cooler climates as bud development will be reduced. If you only have a south window, set the plant back 1.5 m or hang a sheer curtain — both knock the intensity down into the right range.

Watering

Watering rowallane quince: weekly when establishing; every 2–3 weeks during dry spells once established. 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. Keep soil consistently moist during the first two seasons. Established plants are reasonably drought-tolerant. Wall-trained specimens dry out faster and need more attention in summer.

Soil and pot

Rowallane quince grows best in well-drained loam, chalk, clay, or sandy soil. Highly adaptable to most garden soils with pH 6.0–7.5. Incorporates organic matter at planting to improve moisture retention in sandy soils and drainage in clay soils. 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

Rowallane quince sits happiest at around Ambient outdoor (30–70%) humidity and -15 to 25°C (5 to 77°F). No special humidity requirements. Ensure good airflow when grown against walls to minimise fungal disease pressure. 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 rowallane quince sparingly. Top-dress with balanced fertiliser in early spring. Wall-trained plants benefit from a high-potash feed (tomato fertiliser) in June to build flower bud for the following year. 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 rowallane quince in the Growli community. Each is annotated with the most common cause so you know where to start.

  • Fireblight (Erwinia amylovora) — Bacterial infection causing shoot tips to wilt and blacken as if burned. Prune well below infected tissue, sterilising blades with 70% isopropyl alcohol between cuts. Burn or bin (do not compost) infected material.
  • Aphids — Colonies of aphids may cluster on new growth in spring, causing leaf curl and reduced vigour. Encourage natural predators or apply an insecticidal soap spray to affected shoots.
  • Poor flowering on north walls — Insufficient light reduces flower bud initiation. Relocate container specimens or train to a brighter wall. Hard pruning immediately after flowering to open the structure can also improve the following year's bloom.

Propagation

Semi-ripe cuttings in July–August root readily with bottom heat (18–21°C) and rooting hormone. Hardwood cuttings taken in winter can also be successful. Layering in autumn is reliable for wall-trained specimens. Grafting onto Cydonia oblonga rootstock is used commercially. 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

Rowallane quince is mildly toxic to pets. As with all Chaenomeles, seeds contain cyanogenic glycosides and should not be consumed. Fruit pulp is edible when cooked. ASPCA does not individually list Chaenomeles; exercise caution with pets that chew bark or foliage. 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.

Rowallane quince care — frequently asked questions

What is the common name for Chaenomeles x superba 'Rowallane'?

Chaenomeles x superba 'Rowallane' is most commonly called Rowallane quince, but it is also known as Rowallane quince, flowering quince. The names refer to the same species, so care instructions for Rowallane quince apply identically to anything sold as flowering quince.

How much light does rowallane quince need?

Rowallane quince grows best in bright indirect light (just back from a sunny window). Best flower production in full sun. Performs well on south- or west-facing walls; also tolerates an east-facing aspect. Avoid north-facing positions in cooler climates as bud development will be reduced.

How often should I water rowallane quince?

Water rowallane quince weekly when establishing; every 2–3 weeks during dry spells once established. Keep soil consistently moist during the first two seasons. Established plants are reasonably drought-tolerant. Wall-trained specimens dry out faster and need more attention in summer. 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 rowallane quince toxic to cats and dogs?

Rowallane quince is mildly toxic to pets. As with all Chaenomeles, seeds contain cyanogenic glycosides and should not be consumed. Fruit pulp is edible when cooked. ASPCA does not individually list Chaenomeles; exercise caution with pets that chew bark or foliage.

What USDA hardiness zone does rowallane quince grow in?

Rowallane quince is rated for USDA zone 5-9 and RHS hardiness H6. Outside that range, grow it as a container plant that overwinters indoors before the first hard frost.

Rowallane quince deep-dive guides

Every aspect of rowallane quince care, each with its own calibrated guide:

Featured in these plant shortlists

Rowallane quince qualifies for 4 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

Related guides

Rowallane quince is also commonly called Rowallane quince or flowering quince.