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Plant care

Caryopteris x clandonensis 'Worcester Gold' (Worcester Gold bluebeard) care

Caryopteris x clandonensis 'Worcester Gold'

Also called Worcester Gold bluebeard, gold-leaf blue mist shrub.

RHS H5USDA 5-9Mildly toxic to petsIndoor 0.6-0.9 m tall and wide (2-3 ft)

Watering rhythm

Direct sun (at least 4-6 hours)

Weekly while establishing, then only in drought

Light

Direct sun (at least 4-6 hours)

Soil

Free-draining loam or sandy soil

Humidity

30-60%

Temp

-15 to 30°C

Pet safety

Mildly toxic to pets

Mature size

0.6-0.9 m tall and wide (2-3 ft)

Care at a glance

Light

Most houseplants will scorch where caryopteris x clandonensis 'worcester gold' thrives. Give it the windowsill you'd otherwise leave empty because everything else burned there. Full sun is essential; the golden leaf colour fades to lime-green in shade and growth becomes leggy with fewer flowers. Aim for 6+ hours of direct light. A plant moved abruptly from low light to direct sun bleaches in 48 hours — always acclimatise over a week.

Watering

Aim for weekly while establishing, then only in drought for caryopteris x clandonensis 'worcester gold', but treat that as a starting point rather than a rule. A south-facing summer windowsill will dry the pot twice as fast as a north-facing winter room. Lift the pot; if it feels noticeably lighter than it did wet, water it. Keep evenly moist the first season. Once rooted it tolerates dry spells well; water deeply but infrequently and never leave the soil waterlogged.

Soil and pot

Caryopteris x clandonensis 'Worcester Gold' grows best in free-draining loam or sandy soil. Thrives in poor to moderately fertile, well-drained soil including chalky and alkaline ground. Avoid wet, heavy clay, which causes winter root loss. 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

Caryopteris x clandonensis 'Worcester Gold' sits happiest at around 30-60% humidity and -15 to 30°C (5 to 86°F). An outdoor shrub unaffected by humidity targets. Open, airy positions reduce the powdery mildew that can mar the bright foliage in damp, still conditions. 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 caryopteris x clandonensis 'worcester gold' sparingly. Feed sparingly. One light spring application of balanced fertiliser or a compost mulch suffices; excess nitrogen yields soft, floppy growth, dilutes leaf colour and reduces flowering and hardiness. 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 caryopteris x clandonensis 'worcester gold' in the Growli community. Each is annotated with the most common cause so you know where to start.

  • Leaf scorch in heatGolden leaves can scorch at the edges in intense, dry heat. Ensure consistent moisture during heatwaves while keeping drainage sharp.
  • Colour loss in shadeFoliage greens up and flowering drops in low light. Plant in full sun to keep the gold tone.
  • Root rot in wet soilSoggy or clay soils rot the roots, especially over winter. Use raised, gritty, free-draining beds.
  • Powdery mildewWhite film on leaves in humid, crowded sites. Improve air circulation and avoid overhead watering.

Propagation

Propagate by softwood or semi-ripe cuttings in summer rooted in free-draining compost. This is a vegetative cultivar; it will not come true from seed and must be cloned. 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

Caryopteris x clandonensis 'Worcester Gold' is mildly toxic to pets. Caryopteris is not individually listed in the ASPCA Toxic and Non-Toxic Plants database, so its status is unconfirmed; treat with caution and verify with a vet. No significant toxic principle is documented, but eating foliage may cause mild gastrointestinal upset such as drooling or vomiting in cats and dogs. 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.

Caryopteris x clandonensis 'Worcester Gold' care — frequently asked questions

What is the common name for Caryopteris x clandonensis 'Worcester Gold'?

Caryopteris x clandonensis 'Worcester Gold' is most commonly called Caryopteris x clandonensis 'Worcester Gold', but it is also known as Worcester Gold bluebeard, gold-leaf blue mist shrub. The names refer to the same species, so care instructions for Caryopteris x clandonensis 'Worcester Gold' apply identically to anything sold as Worcester Gold bluebeard.

How much light does caryopteris x clandonensis 'worcester gold' need?

Caryopteris x clandonensis 'Worcester Gold' grows best in direct sun (at least 4-6 hours). Full sun is essential; the golden leaf colour fades to lime-green in shade and growth becomes leggy with fewer flowers. Aim for 6+ hours of direct light.

How often should I water caryopteris x clandonensis 'worcester gold'?

Water caryopteris x clandonensis 'worcester gold' weekly while establishing, then only in drought. Keep evenly moist the first season. Once rooted it tolerates dry spells well; water deeply but infrequently and never leave the soil waterlogged. 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 caryopteris x clandonensis 'worcester gold' toxic to cats and dogs?

Caryopteris x clandonensis 'Worcester Gold' is mildly toxic to pets. Caryopteris is not individually listed in the ASPCA Toxic and Non-Toxic Plants database, so its status is unconfirmed; treat with caution and verify with a vet. No significant toxic principle is documented, but eating foliage may cause mild gastrointestinal upset such as drooling or vomiting in cats and dogs.

What USDA hardiness zone does caryopteris x clandonensis 'worcester gold' grow in?

Caryopteris x clandonensis 'Worcester Gold' is rated for USDA zone 5-9 and RHS hardiness H5. Outside that range, grow it as a container plant that overwinters indoors before the first hard frost.

Caryopteris x clandonensis 'Worcester Gold' deep-dive guides

Every aspect of caryopteris x clandonensis 'worcester gold' care, each with its own calibrated guide:

Featured in these plant shortlists

Caryopteris x clandonensis 'Worcester Gold' 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

Caryopteris x clandonensis 'Worcester Gold' is also commonly called Worcester Gold bluebeard or gold-leaf blue mist shrub.