Radermachera sinica (syn. Stereospermum sinicum) Bignoniaceae Emerald tree Benefits, Care & Propagation

This treelike plant succeeds indoors because of its tolerance of the dry atmosphere in most homes. It has shiny, pointed, veined leaves up to IbAn/b.SCM long. 


In its natural habitat, it has sweetly scented, yellow bell­shaped flowers—hence its other common name, Asian bell tree—but these are not usually produced on young plants grown in the home.

FACT FILE Radermachera sinica (syn. Stereospermum sinicum) Bignoniaceae Emerald tree

ORIGIN: China.
HEIGHT: 4ft/1.2m.
POTTING MIX: Peat-moss-based.


REPOTTING: Repot in spring, but only if roots have filled the pot.
PROPAGATION: Take stem cuttings in summer. 

KEEPING PLANTS: Keep away from open fires and smokers: a smoky atmosphere will make the leaves drop. Prune after flowering to keep the plant compact. Put the plant outdoors in summer in a protected spot.

PLANT CARE Radermachera Sinica (syn. Stereospermum sinicum) Bignoniaceae Emerald tree

  • Bright, indirect light. 
  • Normal room temperature, with a minimum of 50°F/10°C in winter. 


  • Keep the soil moist at all times.
  • Mist frequently to maintain humidity.
  • Feed every week in spring and summer.
  • Share
  • Share
  • Share
  • Share


Leave a Comment