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Forsythia x intermedia 'Karl Sax'

Plant type

shrub

size

H: 6'-8'
W: 6'-8'

planting zones

5a-8b

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Forsythia x intermedia 'Karl Sax' plant details

Forsythia x intermedia 'Karl Sax' is a broadleaf deciduous shrub with green foliage. In spring yellow flowers emerge. Grows well with sun and regular water. Adapts to various soil conditions. Does well in average, rich and well-drained soil.

CHARACTERISTICS OF Forsythia x intermedia 'Karl Sax'

Plant type: shrub
Plant family: oleaceae
Foliage: deciduous green
Mature size: 6 FT - 8 FT - wide, 6 FT - 8 FT - tall
Flowers: yellow blooms in spring
Uses: cutting garden, hedge

GROWING CONDITIONS for Forsythia x intermedia 'Karl Sax'

USDA Zones: 5a - 8b
Sun exposure: sun
Watering frequency: regular
Resistant to: deer
Soil needs: average, rich and well-drained

Nursery contributed plant descriptions

Developed at Arnold Arboretum for hardiness and flower color and size, this tetraploid Forsythia bears a profusion of very large (to 1") flowers of a very deep yellow on gracefully arching branches. S/M

By: Forestfarm

A tetraploid forsythia with larger flowers in a very deep yellow.

By: Hoot Owl Hollow Nursery

Garden photo gallery of Forsythia x intermedia 'Karl Sax'

Photo of Forsythia x intermedia 'Karl Sax' flower by Forestfarm

By: Forestfarm

By: Forestfarm

By: Forestfarm

Gardening facts about Forsythia x intermedia 'Karl Sax' plant

How to Grow Forsythia x intermedia 'Karl Sax'

Sun Exposure
- sun
Water Needs
- regular
Soil Needs
- adaptable
- average
- well-drained
- rich

Features

Foliage Color
- green
Flower Color
- yellow
Wildlife
- deer resistant
Flower Season
- spring
Foliage Season
- deciduous

Landscape groups by tags

See other plant types of Forsythia for your garden

Forsythia koreana 'Kumsum'

aka Forsythia 'Kumsun', Forsythia koreana 'Kumsom', Forsythia koreana 'Kumson', Forsythia viridissima koreana, Forsythia viridissima var. koreana 'Kumson', Kumson Golden Bells, Kumson Korean Greenstem Forsythia, Variegated Korean Forsythia

Plant Type

Shrub

Zones

4a-9b

Size

Height: 4'-6'

Width: 4'-6'

sun - mostly shade
regular

Photo of Forsythia koreana 'Kumsum' foliage by Hoot Owl Hollow Nursery

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Forsythia x intermedia Golden Peep™ PP13050

Scientific Name: Forsythia x intermedia 'Courdijau'

aka Forsythia intermedia 'Golden Peep', Forsythia intermedia Golden Peep™, Forsythia x intermedia 'Golden Peep', Courdijau Border Forsythia, Golden Peep Border Forsythia, Golden Peep Dwarf Forsythia