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Plant care

Heuchera 'Hollywood' (Coral Bells 'Hollywood') care

Heuchera 'Hollywood'

Also called Coral Bells 'Hollywood', Alumroot 'Hollywood'.

RHS H6USDA 4-9Pet-safeIndoor 30-40 cm tall

Watering rhythm

7-10days

When the top 2-3 cm of soil is dry, roughly every 7-10 days in the growing season

Light

Medium indirect light (a couple of metres from a window)

Soil

Humus-rich, well-draining loam

Humidity

40-60%

Temp

5-25°C

Pet safety

Pet-safe

Mature size

30-40 cm tall

Care at a glance

Light

The Goldilocks zone. Not the south-facing windowsill (too hot, too direct), not the back of the room (too dim, growth stalls). Best in partial shade with 2-4 hours of morning sun. The burgundy pigmentation deepens in brighter conditions but afternoon sun in hot climates bleaches and stresses the foliage. Dappled woodland light is ideal. If you can't decide, a free phone lux-meter app aimed at the leaf at noon should read between 800 and 1,500 lux.

Watering

Watering heuchera 'hollywood': when the top 2-3 cm of soil is dry, roughly every 7-10 days in the growing season. 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. Water at soil level to avoid wetting the crown and rosette. Reduce frequency significantly in winter during semi-dormancy. This cultivar is moderately drought-tolerant once established but performs best with consistent moisture.

Soil and pot

Heuchera 'Hollywood' grows best in humus-rich, well-draining loam. Incorporate organic matter at planting to improve moisture retention and drainage. A pH of 6.0-7.0 is optimal. Avoid heavy clay without amendment — crown rot is the main risk in poorly drained 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

Heuchera 'Hollywood' sits happiest at around 40-60% humidity and 5-25°C (41-77°F). Tolerates typical outdoor and indoor humidity without issue. Ensure adequate spacing between plants to maintain airflow and reduce the risk of fungal leaf spots in humid summers. If you keep the room above 5 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 heuchera 'hollywood' sparingly. Feed once in early spring with a balanced granular fertiliser worked lightly into the soil. Avoid overfeeding with nitrogen, which produces overly lush growth susceptible to botrytis; a half-strength liquid feed at midsummer is sufficient for flowering support. 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 heuchera 'hollywood' in the Growli community. Each is annotated with the most common cause so you know where to start.

  • Crown rotPersistent wetness around the crown leads to rotting; plant in well-drained soil and avoid mulching directly against the stem.
  • Vine weevil larvaeRoot damage causes sudden collapse of the plant; apply beneficial nematodes to the soil in late summer as a preventive treatment.
  • RustOrange pustules on leaf undersides in cool, damp conditions; remove affected leaves and treat with a copper-based fungicide if severe.
  • Leaf scorchBrown leaf edges develop in intense afternoon sun or during drought; relocate to a shadier spot and ensure consistent watering.
  • Slugs and snailsYoung foliage is attractive to molluscs; use copper tape, grit barriers, or wildlife-safe slug pellets around new spring growth.

Companion plants

Heuchera 'Hollywood' pairs well with Hosta, Astilbe, Tiarella, and Pulmonaria. These are species with similar light and water needs, so you can group them in the same room or on the same shelf and water as a batch.

Propagation

Divide mature clumps every 3-4 years in spring or early autumn to maintain vigour. Cut through the crown with a clean sharp knife, ensuring each division has several growing points and roots. Replant immediately at the correct depth — burying the crown promotes rot. 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

Heuchera 'Hollywood' is pet-safe. Heuchera is listed by the ASPCA as non-toxic to dogs, cats, and horses. No toxic compounds have been identified in this genus at normal garden exposure levels. 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.

Heuchera 'Hollywood' care — frequently asked questions

What is the common name for Heuchera 'Hollywood'?

Heuchera 'Hollywood' is most commonly called Heuchera 'Hollywood', but it is also known as Coral Bells 'Hollywood', Alumroot 'Hollywood'. The names refer to the same species, so care instructions for Heuchera 'Hollywood' apply identically to anything sold as Coral Bells 'Hollywood'.

How much light does heuchera 'hollywood' need?

Heuchera 'Hollywood' grows best in medium indirect light (a couple of metres from a window). Best in partial shade with 2-4 hours of morning sun. The burgundy pigmentation deepens in brighter conditions but afternoon sun in hot climates bleaches and stresses the foliage. Dappled woodland light is ideal.

How often should I water heuchera 'hollywood'?

Water heuchera 'hollywood' when the top 2-3 cm of soil is dry, roughly every 7-10 days in the growing season. Water at soil level to avoid wetting the crown and rosette. Reduce frequency significantly in winter during semi-dormancy. This cultivar is moderately drought-tolerant once established but performs best with consistent moisture. 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 heuchera 'hollywood' toxic to cats and dogs?

Heuchera 'Hollywood' is pet-safe. Heuchera is listed by the ASPCA as non-toxic to dogs, cats, and horses. No toxic compounds have been identified in this genus at normal garden exposure levels.

What USDA hardiness zone does heuchera 'hollywood' grow in?

Heuchera 'Hollywood' is rated for USDA zone 4-9 and RHS hardiness H6. Outside that range, grow it as a container plant that overwinters indoors before the first hard frost.

Heuchera 'Hollywood' deep-dive guides

Every aspect of heuchera 'hollywood' care, each with its own calibrated guide:

Featured in these plant shortlists

Heuchera 'Hollywood' qualifies for 14 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

  • Best pet-safe houseplantsHouseplants the ASPCA lists as non-toxic to cats and dogs — every one verified against the ASPCA toxic and non-toxic plant list.
  • Best low-light houseplantsHouseplants that need no direct sun and cope with a north-facing room or a spot well back from a window.
  • Best plants for a north-facing windowHouseplants for a north-facing window: bright, even, indirect light and no scorching direct sun. Each pick verified against its documented light needs.
  • Best pet-safe low-light plantsNon-toxic to cats and dogs AND happy with no direct sun — the two hardest constraints to satisfy at once.
  • Best plants for cold, dark roomsHouseplants that cope with BOTH low light and a cool, unheated room — the hardest indoor spot to fill. Every pick tolerates a low of about 10°C and shade.
  • Best drought-tolerant houseplantsHouseplants that prefer to dry out — forgiving of forgotten watering and ideal for travel or busy weeks.
  • Best houseplants for beginnersForgiving of irregular light and watering — the houseplants least likely to die in a new plant parent’s first season.
  • Best flowering houseplantsIndoor plants grown for their blooms — selected from the flowering species in Growli’s plant-care library.
  • Best pet-safe low-maintenance plantsNon-toxic to cats and dogs and forgiving of forgotten watering — the easiest safe choices for a busy pet household.
  • Best pet-safe flowering plantsFlowering houseplants the ASPCA lists as non-toxic to cats and dogs — colour and blooms in a pet home, without the worry.
  • Best houseplants for a cool roomHouseplants that tolerate cool conditions down to about 10°C — for an unheated spare room, hallway, porch or a home kept cool.
  • Best pet-safe bedroom plantsNon-toxic to cats and dogs and happy in lower light — calming greenery for a bedroom where a pet often sleeps too.
  • Best cat-safe plantsHouseplants the ASPCA lists as non-toxic to cats (and dogs) — safe greenery for a home with a curious cat.
  • Best dog-safe plantsHouseplants the ASPCA lists as non-toxic to dogs (and cats) — safe greenery for a home with a curious dog.
  • Browse all 30 plant shortlists — pet-safe, low-light, drought-tolerant and more

Related guides

Heuchera 'Hollywood' is also commonly called Coral Bells 'Hollywood' or Alumroot 'Hollywood'.