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A picture of a Forsythia intermedia 'Karl Sax'

Forsythia intermedia 'Karl Sax'

Forsythia intermedia 'Karl Sax'

Partial Shade
Moderate watering
Frost Hardy

8a

USDA zone

-12°C

Minimum temperature

Expected size

Height
Spread

3m

Max

3.5m

1.5m

Min

2m

Flowering

  • spring
  • summer
  • autumn
  • winter

Forsythia intermedia 'Karl Sax' Overview

A dense growing shrub with profuse clusters of dark yellow flowers and leaves which turn red or purple in autumn.

How to propagate Forsythia intermedia 'Karl Sax'

Cuttings

You can propagate by softwood or greenwood cuttings in the summer. Hardwood cuttings in the autumn or winter.

Special features of Forsythia intermedia 'Karl Sax'

Hedge plant

Other uses of Forsythia intermedia 'Karl Sax'

Hedging, border, ornamental