A close relative to the more familiar yellow-flowering Forsythia, this a quite rare shrub in the UK gardening scene. Its parent, the white flowered Abeliophyllum disticum is found growing in the wild only in the Korean peninsular in the Far East, where it is considered a threatened species. Abeliophyllum flowers on the previous season's woody growth and produces a very dainty display of soft pink and lightly fragrant flowers in late winter to early spring.
Although fully hardy as far as cold weather is concerned, Abeliphyllum really does need good summer heat to fully ripen the new growth and to thus encourage the formation of flower buds. Although we can all hope we never get to see the blisteringly hot summers Korea, both North and South,. have to endure, a sheltered spot facing south, perhaps backing on to a wall will suffice very well.
Once the plant is established, get in to the habit of cutting the oldest wood hard after flowering to encourage a steady supply of fresh stems - this will keep the plant invigorated and flowering generously. Any decent and reasonably fertile, moist and well drained soil will be fine. Height should be at least 1m but potentially twice or more than this in perhaps a decade.