Growli

Plant care

Dogwood (Bloody Twig) care

Cornus sanguinea

Also called Common Dogwood, Dogwood, Bloody Twig, Pedwood.

RHS H7USDA 5-8Mildly toxic to petsIndoor 2–4 m tall and wide if unpruned

Watering rhythm

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

Low to moderate — water during establishment; drought-tolerant thereafter

Light

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

Soil

Well-drained to moist, alkaline to neutral loam, chalk, or clay

Humidity

Moderate to high (50–80 % RH)

Temp

-25 to 30 °C

Pet safety

Mildly toxic to pets

Mature size

2–4 m tall and wide if unpruned

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). Grows well in full sun to partial shade; stem colour is most vivid on plants in an open, sunny position — deep shade produces greener, less colourful stems. 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 dogwood: low to moderate — water during establishment; drought-tolerant thereafter. 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. Tolerates periodic waterlogging in winter but performs best in well-drained soils; established shrubs rarely need supplemental watering in the UK climate.

Soil and pot

Dogwood grows best in well-drained to moist, alkaline to neutral loam, chalk, or clay. Thrives on chalk and limestone soils where many plants struggle; also grows well in heavy clay if not persistently waterlogged. Soil pH 6.0–8.0 is suitable. 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

Dogwood sits happiest at around Moderate to high (50–80 % RH) humidity and -25 to 30 °C (-13 to 86 °F). Fully adapted to UK ambient humidity; tolerates wind and exposed coastal sites without supplemental humidity. Good airflow reduces fungal leaf disease. 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 dogwood sparingly. Top-dress with a balanced granular fertiliser (e.g. 7-7-7 NPK) in early spring after hard pruning; avoid excessive nitrogen, which promotes leafy growth at the expense of stem colour. 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 dogwood in the Growli community. Each is annotated with the most common cause so you know where to start.

  • Cornus anthracnose (Discula destructiva)Causes leaf blotching, shoot dieback, and cankers; more severe on stressed plants — maintain vigour through hard pruning and good soil drainage, and remove infected stems promptly.
  • Woolly aphid colonies on young shootsDense clusters of aphids on new growth cause curling and distortion; knock off with a strong jet of water or apply an insecticidal soap spray in spring before populations build.

Propagation

Take hardwood cuttings 20–25 cm long in November–January and insert in free-draining compost in a cold frame; alternatively layer low-growing branches in autumn. Suckers can be detached and replanted in early spring. 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

Dogwood is mildly toxic to pets. Cornus sanguinea is not listed by ASPCA as highly toxic, but the berries and plant sap contain glycosides and saponins that may cause gastrointestinal upset (vomiting, diarrhoea) in cats and dogs if consumed. Classified as mildly toxic — contact your vet if a pet ingests significant quantities of berries. 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.

Dogwood care — frequently asked questions

What is the common name for Cornus sanguinea?

Cornus sanguinea is most commonly called Dogwood, but it is also known as Common Dogwood, Dogwood, Bloody Twig, Pedwood. The names refer to the same species, so care instructions for Dogwood apply identically to anything sold as Bloody Twig.

How much light does dogwood need?

Dogwood grows best in medium indirect light (a couple of metres from a window). Grows well in full sun to partial shade; stem colour is most vivid on plants in an open, sunny position — deep shade produces greener, less colourful stems.

How often should I water dogwood?

Water dogwood low to moderate — water during establishment; drought-tolerant thereafter. Tolerates periodic waterlogging in winter but performs best in well-drained soils; established shrubs rarely need supplemental watering in the UK climate. 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 dogwood toxic to cats and dogs?

Dogwood is mildly toxic to pets. Cornus sanguinea is not listed by ASPCA as highly toxic, but the berries and plant sap contain glycosides and saponins that may cause gastrointestinal upset (vomiting, diarrhoea) in cats and dogs if consumed. Classified as mildly toxic — contact your vet if a pet ingests significant quantities of berries.

What USDA hardiness zone does dogwood grow in?

Dogwood is rated for USDA zone 5-8 and RHS hardiness H7. Outside that range, grow it as a container plant that overwinters indoors before the first hard frost.

Dogwood deep-dive guides

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

Featured in these plant shortlists

Dogwood qualifies for 9 curated Growli shortlists — each one filtered objectively from our structured plant-care library, so the selection is consistent and checkable:

Related guides

Dogwood is also known as Common Dogwood, Dogwood, Bloody Twig, and Pedwood.