Flowering Dogwood

Cornus florida

Native to:
Canada, Mexico, United States, Virgin Islands

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Cornaceae
Genus:
Cornus
Species:
Cornus florida
USDA Symbol:
COFL2

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Shrub , Tree
Height:
914 cm
Light Requirements:
Part Shade,Shade
Drought Tolerance:
Medium
Bloom Months:
apr,may
Bloom Colors:
white, pink

Wildlife Benefits

Bees:
★☆☆☆☆ Documented bee visitation (GBIF)
Butterflies & Moths:
★★★☆☆ Documented Lepidoptera association (GBIF)
Caterpillars:
★★★☆☆ Recorded caterpillar host plant (HOSTS Database)
Hummingbirds:
★☆☆☆☆ Documented hummingbird visits (GBIF)

Keystone Species Ranking

Caterpillar Keystone:
★★★★☆ Butterfly & moth species supported by this genus (NWF)
Pollen Specialist Bee Keystone:
★☆☆☆☆ Native pollen specialist bee species supported by this genus (NWF)

Host Plant for Caterpillars

Ailanthus silkmoth (Samia cynthia), Antispila cornifoliella, Cecropia moth (Hyalophora cecropia), Confused Morrisonia (Morrisonia confusa), Curve-toothed geometer (Eutrapela clemataria), Dogwood borer (Synanthedon scitula), Dogwood Thyatirid Moth (Euthyatira pudens), Eastern Tent Caterpillar (Malacosoma americana), Epinotia lindana, Fall webworm (Hyphantria cunea), False Crocus Geometer (Xanthotype urticaria), friendly probole (Probole amicaria), grand spiramater moth (Spiramater grandis), Gypsy moth (Lymantria dispar), herminia moth (Eudeilinia herminiata), Heterocampa biundata, Io moth (Automeris io), Obliquebanded leafroller (Choristoneura rosaceana), Papestra cristifera, Red-humped caterpillar moth (Schizura concinna), stinging rose caterpillar (Parasa indetermina), Synanthedon geliformis, Ultronia underwing (Catocala ultronia), Unicorn caterpillar moth (Schizura unicornis), Walker’s Atlas Moth (Samia walkeri), Warner's metarranthis moth (Metarranthis warnerae), White-marked Tussock Moth (Orgyia leucostigma), Holly Blue (Celastrina argiolus)

Reported Fauna Sightings

Hummingbirds: Ruby-throated Hummingbird (Archilochus colubris) Moths:Antispila cornifoliella, Coelodasys Packard, Luna moth (Actias luna) Butterflies:Silver-spotted Skipper (Epargyreus clarus), Spring Azure (Celastrina ladon)

Garden & Ecology Notes

Wildlife Value:
birds, butterflies, small mammals
Fall Color:
red, purple

Soil Requirements

Soil Type:
rich, well-drained loamy soil
pH:
5.5 - 7.0 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
consistently moist
Notes:
prefers organic matter-rich soils

Propagation & Germination

Stratification:
Cold/moist stratification required — 60–120 days
Germination Time:
30–180 days
Notes:
Seeds require cold stratification; germination can be slow and erratic.

Pre-treatment: Seeds are either sown in early fall for natural stratification or cold stratified for 100 to 130 days. Seeds can also be imbibed in water overnight, dusted with fungicide and endomycorrhizae sprinkled over them.

Establishment: Seeds are collected from various locations, including Shenandoah National Park and local people within a 50 mile radius of the nursery. There are variations in the pre-planting treatments across the protocols.

Source: npn.rngr.net

ORGHPS Germination Guide: Use repeated cycles of 4°C, then 20°C for 3 months each. Germination is very prolonged. Requires darkness. Pulpy coat inhibits germination. Remove by soaking and rinsing in clean water for approximately 7 days. Discard water. * wash and rinse daily in clean water x 14 days to remove pulp

Source: Ontario Rock Garden & Hardy Plant Society

Where to Buy

Nationwide Seller