Forsythia, Golden Bells
A hybrid of Forsythia suspensa x Forsythia viridissima it is by far the most commonly available Forsythia in the market place today, primarily as it has a longer lasting and more prolific flowering habit. There are many cultivars of x intermedia commonly available, including dwarf varieties, Lynnwood Gold, Spectabilis, Arnold Dwarf to name a few. The make a colourful small to medium Bonsai.
Informal Upright, Slanting, Cascade, Semi-cascade, Clump
Prefers full sun, can tolerate partial shade. Must be in full sun to get a good flush of flowers. The flowers are frost resistant.
Water well, likes a moist soil but let the surface of the growing medium dry out in between watering.
Feed bimonthly during the growing season. If using a slow release organic fertiliser feed every two months during the growing season.
Leaf and Branch Pruning:
Carried out once stems have extended to bear 6-7 leaves, cut back to leave last two leaf nodes. Structural pruning if required should best be done late autumn.
Re-potting & Growing Medium:
Repot older plants every 2-3 years, in spring, for younger plants every year. Use a well drained organic mix soil. Formula A - 1 Part Akadama, 1 Part Pumice, 1 Part Bark or Leaf Mulch. Formula B - 1 Part Damolin Clay, 1 Part Bark or Leaf Mulch.
Shaping is normally done pruning, but can be undertaken all thru the year. But best done in late autumn when spa has been withdrawn into the roots.