Home / Guides / Plant Files / Oleaceae

Forsythia 'Northern Sun'

Forsythia

Upload Image Print Article

Family

Oleaceae (oh-lee-AY-see-ee)

Info

Genus

Forsythia (for-SITH-ee-a)

Info

Synonym

Height

Unknown - Tell us

Spacing

6-8 ft. (1.8-2.4 m)

Sun Exposure

4-6 ft. (1.2-1.8 m)

6-8 ft. (1.8-2.4 m)

Danger

USDA Zone 5a: to -28.8 °C (-20 °F)

USDA Zone 5b: to -26.1 °C (-15 °F)

USDA Zone 6a: to -23.3 °C (-10 °F)

USDA Zone 6b: to -20.5 °C (-5 °F)

USDA Zone 7a: to -17.7 °C (0 °F)

USDA Zone 7b: to -14.9 °C (5 °F)

USDA Zone 8a: to -12.2 °C (10 °F)

USDA Zone 8b: to -9.4 °C (15 °F)

USDA Zone 9a: to -6.6 °C (20 °F)

USDA Zone 9b: to -3.8 °C (25 °F)

Hardiness

Bloom Color

Bloom Time

Foliage

Bloom Time

Bloom Color

Bloom Time

Class

Bloom Time

Bloom Color

Class

Bloom Color

Bloom Time

Other Details

Seed Collecting

Full Sun

Fruit Shape

Unknown - Tell us

Fruit Size

Bright Yellow

Fruit Colors

Late Winter/Early Spring

Mid Spring

Growing Habit

Deciduous

Smooth

Days to Maturity

Unknown - Tell us

Seed Type

From semi-hardwood cuttings

From hardwood cuttings

Usage

Unknown - Tell us

Disease Resistance

N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed

Leaf Type

Unknown - Tell us

Foliage Color

Unknown - Tell us

Bloom Characteristics

Unknown - Tell us

Water Requirements

Shrubs

Where to Grow

Unknown - Tell us

Other details

Unknown - Tell us

Propagation Methods

5.6 to 6.0 (acidic)

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

Soil pH requirements

Unknown - Tell us

Patent Information

Unknown - Tell us

Plant Size (check one)

Growing Habit

Growth Rate

Leaf Shape

Leaf Appearance

Degree to which the appearance is present

Unknown - Tell us

Leaf Texture (top)

Unknown - Tell us

Leaf Texture (bottom)

Leaf Color

Color of Leaf Margin

Leaf Substance

Number of Vein Pairs

Appearance of Margin

Margin Width

Flower Shape

Flower Fragrance

Does it set seed?

Flower Size

Flower Type

Blooming Habit

Foliage Habit

Ploidy

Color Patterns

Awards (if applicable)

Unknown - Tell us

Gardener's Notes:

Post Comment

positive

neutral

negative

Sort By:

Post Comment

Sort By:

Aphthona

Fargo, ND (Zone 4a) | June 2011 | positive

This University of Minnesota introduction has successfully bloomed in Fargo, ND for over 20 years.

Popular Plants

SEE ALL

Featured

BUG FILES

Wasp Spider

(Argiope bruennichi)

BIRD FILES

Cooper's Hawk

(Accipiter cooperii)

Featured

BUG FILES

Wasp Spider

(Argiope bruennichi)

BIRD FILES

Cooper's Hawk

(Accipiter cooperii)

Forsythia 'Northern Sun'

Forsythia

Featured Videos

Gardener's Notes:

Get to Know Dave's Garden

Follow Dave's Garden