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Plant care

Begonia 'Non-Stop Rose' (Non-Stop Rose begonia) care

Begonia × tuberhybrida 'Non-Stop Rose'

Also called Non-Stop Rose begonia, double tuberous begonia.

RHS H2USDA 9-11Toxic to petsIndoor 25-30 cm tall and 25-30 cm wide

Watering rhythm

4-7days

When the top 2-3 cm of soil is dry, roughly every 4-7 days

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Light

Bright indirect light (just back from a sunny window)

Soil

Rich, free-draining, humus-rich potting mix

Humidity

50-60%

Temp

16-24°C

Pet safety

Toxic to pets

Mature size

25-30 cm tall and 25-30 cm wide

Care at a glance

Light

Bright but filtered. Begonia 'Non-Stop Rose' burns within days in unfiltered south-facing summer sun, and stops growing within months in deep shade. Bright, filtered light or dappled shade gives the best blooms; direct midday sun scorches the petals and leaves. Morning sun with afternoon shade is ideal. Deep shade reduces flowering and stretches the stems. 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 begonia 'non-stop rose': when the top 2-3 cm of soil is dry, roughly every 4-7 days. 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 consistently moist during active growth but never waterlogged, as the tubers rot easily. Water at the base to keep foliage and flowers dry. Taper off in late summer and withhold water as the plant goes dormant for winter storage.

Soil and pot

Begonia 'Non-Stop Rose' grows best in rich, free-draining, humus-rich potting mix. A peat-free compost enriched with leaf mould or organic matter and lightened with perlite suits tuberous begonias. Slightly acidic pH and excellent drainage are essential to prevent tuber rot. 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

Begonia 'Non-Stop Rose' sits happiest at around 50-60% humidity and 16-24°C (61-75°F). Moderate humidity supports lush growth. Avoid wetting the foliage and flowers, which encourages botrytis and powdery mildew, and keep air circulating around the plants. If you keep the room above 16 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 begonia 'non-stop rose' sparingly. Feed every 2 weeks from when growth resumes through summer with a balanced or high-potash liquid fertiliser to fuel the large blooms. Stop feeding from late summer as the plant prepares for dormancy. 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 begonia 'non-stop rose' in the Growli community. Each is annotated with the most common cause so you know where to start.

  • Tuber rot — Soft, mushy tubers from overwatering or planting too deep. Set the tuber hollow-side up at the surface, water sparingly until growth establishes, and ensure sharp drainage.
  • Powdery mildew — White powdery film on leaves in humid, crowded conditions. Improve airflow, avoid overhead watering, and remove affected foliage.
  • Botrytis (grey mould) — Grey mould on flowers and stems in damp, cool weather. Remove faded blooms and debris and increase ventilation.
  • Bud drop — Flowers dropping before opening due to erratic watering, temperature swings or moving the plant. Keep moisture steady and the location stable.

Propagation

Propagate by dividing dormant tubers (each section needs a growth bud) before potting up in spring, or take basal stem cuttings from new spring shoots and root them in moist, free-draining compost. 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

Begonia 'Non-Stop Rose' is toxic to pets. The ASPCA lists Begonia as toxic to cats, dogs and horses. Soluble calcium oxalates, most concentrated in the tubers, can cause oral irritation and burning, drooling, vomiting and difficulty swallowing if chewed. Store dormant tubers where pets cannot reach them. 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.

Begonia 'Non-Stop Rose' care — frequently asked questions

What is the common name for Begonia × tuberhybrida 'Non-Stop Rose'?

Begonia × tuberhybrida 'Non-Stop Rose' is most commonly called Begonia 'Non-Stop Rose', but it is also known as Non-Stop Rose begonia, double tuberous begonia. The names refer to the same species, so care instructions for Begonia 'Non-Stop Rose' apply identically to anything sold as Non-Stop Rose begonia.

How much light does begonia 'non-stop rose' need?

Begonia 'Non-Stop Rose' grows best in bright indirect light (just back from a sunny window). Bright, filtered light or dappled shade gives the best blooms; direct midday sun scorches the petals and leaves. Morning sun with afternoon shade is ideal. Deep shade reduces flowering and stretches the stems.

How often should I water begonia 'non-stop rose'?

Water begonia 'non-stop rose' when the top 2-3 cm of soil is dry, roughly every 4-7 days. Keep consistently moist during active growth but never waterlogged, as the tubers rot easily. Water at the base to keep foliage and flowers dry. Taper off in late summer and withhold water as the plant goes dormant for winter storage. 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 begonia 'non-stop rose' toxic to cats and dogs?

Begonia 'Non-Stop Rose' is toxic to pets. The ASPCA lists Begonia as toxic to cats, dogs and horses. Soluble calcium oxalates, most concentrated in the tubers, can cause oral irritation and burning, drooling, vomiting and difficulty swallowing if chewed. Store dormant tubers where pets cannot reach them.

What USDA hardiness zone does begonia 'non-stop rose' grow in?

Begonia 'Non-Stop Rose' is rated for USDA zone 9-11 (tubers lifted and stored over winter in colder zones) and RHS hardiness H2. Outside that range, grow it as a container plant that overwinters indoors before the first hard frost.

Begonia 'Non-Stop Rose' deep-dive guides

Every aspect of begonia 'non-stop rose' care, each with its own calibrated guide:

Featured in these plant shortlists

Begonia 'Non-Stop Rose' qualifies for 5 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

Related guides

Begonia 'Non-Stop Rose' is also commonly called Non-Stop Rose begonia or double tuberous begonia.