Field ManualAll plants

Photo: Gogerr, via Wikimedia CommonsLicense: CC BY-SA 4.0

Kousa dogwood

Cornus kousa Bürger ex Hance

Pet & Human Safety

People: Not researchedPets: Not on the ASPCA lists as we read them
Hazardous parts
Not yet checked.
Preparation
n/a
Hazard type
Not yet checked.
Hazard route
Not yet checked.
How complete this information is
We have not researched the safety of this plant yet.

Toxic to pets
No ASPCA entry found.

Dogs, cats, horses: no source makes a pet toxicity statement.

PlotAndPetal cannot tell you whether a plant you found can be eaten. Only someone who can see the plant can identify it.

Poison control

If someone has collapsed, cannot be woken, is having a seizure or has trouble breathing, call 911 now. For any other possible poisoning, call Poison Help: 1-800-222-1222.

Emergency number source: U.S. federal law (47 U.S.C. § 251(e)(3)), read 2026-10-07.

Naturalist Lore

Historical Background & Breeding Lore

The history of this plant and its name, and how it was bred, where we have them.

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Care

Hardiness zones

USDA 5a to 8b per NC State Plant Toolbox; USDA 5B to 8B per UF/IFAS (Milky Way variety); USDA 4 to 8 per Utah State University

Light

Full sun to part shade; in the South it does best with some afternoon shade.

Water needs

moderate

Mature size

NC State: 20 to 30 ft (6 to 9 m) tall and 15 to 30 ft (4.5 to 9 m) wide; the description says a mature height of 30 ft. Clemson: about 15 to 20 ft (4.5 to 6 m) tall and wide. UF/IFAS (Milky Way variety only): 15 to 20 ft (4.5 to 6 m) tall and wide.

Family

Cornaceae (NC State, UF/IFAS)

Where it comes from

NC State: native to China, Japan, Korea and Taiwan (and the Himalaya east); introduced in parts of the US. Clemson: from Japan, Korea and China; not native to North America.

Soil & Drainage
Pruning & Flush Rhythm
Feeding Schedule

How to prepare the soil, when and what to feed, and how and when to prune where that applies.

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Anatomy & Guilds

Botanical Anatomy & Characteristics

How the flowers and leaves are built and which pollinators visit, where we have them.

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Field Doctor

Field Doctor

What can go wrong with this plant and what to do about it, where we have them.

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Vintage Plates

Vintage Plates

Old botanical drawings from public libraries are in the app, for plants where we have them.

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Sources

  1. NC State Extension Plant Toolbox - Cornus kousa
  2. UF/IFAS EDIS ST192 - Cornus kousa 'Milky Way'
  3. Clemson HGIC - Kousa dogwood
  4. Utah State University TreeBrowser - Dogwood, Kousa
  5. ASPCA Animal Poison Control - toxic and non-toxic plants list

How we choose sources

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