The Forsythia goes beautifully with:
Abelia grandiflora, beautiful pale pink - white blossom throughout summer.
Beauty Bush 'Pink Cloud' (Kolwitzia amabilis 'Pink Cloud), abundant pale pink blossom in June - July, red foliage in the autumn.
Buddleia (Buddleia Davidii) 'Nanho purple', abundant and scented blossom throughout summer, highly attractive to butterflies.
Heavenly Bamboo (Nandina domestica), beautiful white blossom throughout spring and summer, followed by extremely decorative red berries.
Laurustinus (Viburnum tinus), white blossom from November through to April, followed by bluish - black berries.
Milkflower Cotoneaster (Cotoneaster lacteus), white blossom in June - July, followed by red berries in October.
Oregon Grape (Mahonia aquifolium), blossom of lemony yellow clusters in January.
Smoke Bush (Cotinus coggygria), feathery inflorescences in summer, red foliage in the autumn.
Variegated Pink Weigelia (Weigelia florida 'Variegata'), abundant blossom of pink bell shaped flowers throughout summer.
Virginal Mockorange (Philadelphus x virginalis 'Virginal'), abundant white blossom in summer.
Weigelia 'Bristol Ruby', abundant blossom from May through to September, ruby red bell shaped flowers.
The Forsythia used in the following flowering hedges:
Flowering Hedge 'Emma'
Flowering Hedge 'Julie'