Photo by Forestfarm
Used with permission, all rights reserved
Forsythia x intermedia 'Karl Sax'
Plant type
shrub
size
- H: 6'-8'
- W: 6'-8'
planting zones
- 5a-8b
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
By: Forestfarm
By: Hoot Owl Hollow Nursery
Garden photo gallery of Forsythia x intermedia 'Karl Sax'
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
Scientific Name: Forsythia 'Nimbus'
aka Show Off® Sugar Baby Forsythia
Plant Type
Shrub
Zones
5a-9b
Size
Height: 2'-3'
Width: 2'-3'
- sun - mostly sun
- regular
Scientific Name: Forsythia 'Minfor6'
aka Show Off® Starlet Forsythia
Plant Type
Shrub
Zones
5a-9b
Size
Height: 2'-3'
Width: 2'-3'
- sun - mostly sun
- even moisture - regular
Scientific Name: Forsythia koreana 'Sunny'
aka Flying Machine® Korean Forsythia
Plant Type
Shrub
Zones
6a-9b
Size
Height: 5'-8'
Width: 4'-6'
- sun - dappled shade
- even moisture - regular
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
aka Klein Greenstem Forsythia
Plant Type
Shrub
Zones
5a-9b
Size
Height: 1'-2'
Width: 3'-4'
- sun - mostly sun
- even moisture - regular
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