Growli
Let's go

Plant care

China Girl dogwood (Kousa dogwood) care

Cornus kousa 'China Girl'

Also called China Girl dogwood, Kousa dogwood, Chinese dogwood.

RHS H6USDA 5-8Mildly toxic to petsIndoor 4–7 m tall and 4–6 m wide (13–23 ft × 13–20 ft)

Watering rhythm

1-2weeks

Weekly in first 2–3 years; every 1–2 weeks in dry periods once established

Jump to schedule→Get smart reminders in the app

Light

Bright indirect light (just back from a sunny window)

Soil

Moist, humus-rich, well-draining acidic to neutral loam

Humidity

Moderate (40–65%)

Temp

-20 to 32°C

Pet safety

Mildly toxic to pets

Mature size

4–7 m tall and 4–6 m wide (13–23 ft × 13–20 ft)

Care at a glance

Light

China Girl dogwood is what florists mean by "bright spot, no direct sun" — close enough to a south or east window to feel the brightness, with a sheer curtain or a few feet of distance keeping the sun off the leaves. Best in full sun to partial shade. Full sun maximizes flowering and develops the best autumn color. Dappled light under tall trees suits it well. Deep shade suppresses flowering significantly and makes the plant more vulnerable to disease. A phone lux-meter at the leaf surface should read 1,500-3,000 lux at noon.

Watering

Water china girl dogwood weekly in first 2–3 years; every 1–2 weeks in dry periods once established. The actual day count varies with pot size, light, and season — the finger test (or lifting the pot to feel its weight) is more reliable than a fixed calendar. Empty any drainage saucer afterwards so the pot isn't sitting in water. Needs consistent moisture to establish a deep root system. Dislikes prolonged drought; dry spells in late summer stress trees and reduce following year's flower bud set. Mulch deeply to conserve moisture.

Soil and pot

China Girl dogwood grows best in moist, humus-rich, well-draining acidic to neutral loam. Prefers slightly acidic soil pH 5.5–6.5; tolerates near-neutral. Poorly draining or alkaline soils cause chlorosis and decline. Incorporate generous amounts of leaf mold or compost at planting. 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

China Girl dogwood sits happiest at around Moderate (40–65%) humidity and -20 to 32°C (-4 to 90°F). Tolerates typical outdoor humidity in temperate climates. Good air circulation helps prevent fungal issues, but this cultivar is notably more disease-resistant than Cornus florida. 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 china girl dogwood sparingly. Apply an ericaceous (acidifying) slow-release fertilizer in early spring, before bud break. Avoid high-nitrogen feeds; a balanced or phosphorus-leaning formula supports flowering. Do not fertilize in late summer as it promotes soft growth vulnerable to frost. 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 china girl dogwood in the Growli community. Each is annotated with the most common cause so you know where to start.

  • Leaf scorch in alkaline soil — Yellowing between leaf veins (interveinal chlorosis) indicates iron deficiency caused by high soil pH. Acidify with sulfur or ericaceous fertilizer; apply chelated iron as a short-term fix.
  • Scale insects on stems — Dogwood scale (Chionaspis corni) causes bark discoloration and dieback on crowded stems. Apply horticultural oil in late winter while dormant; remove heavily infested branches. Natural predators provide some control.
  • Slow establishment — Kousa dogwoods are slow to establish, looking unimpressive for the first 2–3 years. Patience, consistent watering, and deep mulching are essential. Growth and flowering accelerate dramatically once the root system is established.

Propagation

Softwood cuttings taken in June–July root under mist with IBA hormone treatment, though success rates vary. Grafting onto Cornus kousa rootstock is the commercial method for true-to-type plants. Seed (cold-stratified) produces variable offspring and is not recommended for cultivar propagation. 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

China Girl dogwood is mildly toxic to pets. Cornus kousa fruits are consumed by wildlife and used in some human recipes, but Cornus species are not individually confirmed as pet-safe by ASPCA. The genus has no widely documented severe toxicity, but ingestion of fruit or foliage by pets may cause mild gastrointestinal upset. Use caution. 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.

China Girl dogwood care — frequently asked questions

What is the common name for Cornus kousa 'China Girl'?

Cornus kousa 'China Girl' is most commonly called China Girl dogwood, but it is also known as China Girl dogwood, Kousa dogwood, Chinese dogwood. The names refer to the same species, so care instructions for China Girl dogwood apply identically to anything sold as Kousa dogwood.

How much light does china girl dogwood need?

China Girl dogwood grows best in bright indirect light (just back from a sunny window). Best in full sun to partial shade. Full sun maximizes flowering and develops the best autumn color. Dappled light under tall trees suits it well. Deep shade suppresses flowering significantly and makes the plant more vulnerable to disease.

How often should I water china girl dogwood?

Water china girl dogwood weekly in first 2–3 years; every 1–2 weeks in dry periods once established. Needs consistent moisture to establish a deep root system. Dislikes prolonged drought; dry spells in late summer stress trees and reduce following year's flower bud set. Mulch deeply to conserve 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 china girl dogwood toxic to cats and dogs?

China Girl dogwood is mildly toxic to pets. Cornus kousa fruits are consumed by wildlife and used in some human recipes, but Cornus species are not individually confirmed as pet-safe by ASPCA. The genus has no widely documented severe toxicity, but ingestion of fruit or foliage by pets may cause mild gastrointestinal upset. Use caution.

What USDA hardiness zone does china girl dogwood grow in?

China Girl dogwood is rated for USDA zone 5-8 and RHS hardiness H6. Outside that range, grow it as a container plant that overwinters indoors before the first hard frost.

China Girl dogwood deep-dive guides

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

Featured in these plant shortlists

China Girl dogwood 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

China Girl dogwood is also known as China Girl dogwood, Kousa dogwood, and Chinese dogwood.