| Name (common name) & Description |
Conditions |
Size |
| Acanthus mollis (Bears Breeches) Long-lasting architectural flower spikes of purple and white in late summer. Plant in fertile, well-drained soil in full sun or partial shade. |   | HEIGHT: 1.5m. SPREAD: 90cm. |
| Acanthus spinosus (Bears Breeches) Bold spikes of mauve-purple flowers from July to September. Handsome deeply cut foliage. Sun or semi-shade in a well-drained soil. |   | HEIGHT: 1.5m. SPREAD: 60-90cm. |
| Acanthus Summer Beauty Tall architectural spires of purple and white flowers in summer with spiny leaves. Plant in a well-drained soil in sun or partial shade. |   | HEIGHT: 50-180cm. |
| Achillea filipendulina Cloth of Gold Brilliant yellow flat-headed flowers from July to September. Requires full sun and a well drained soil. Ideal for cut flowers. |  | HEIGHT: 1.2m. |
| Achillea millefolium Red Velvet (Yarrow or Milfoil) Red flowers which may darken to crimson from June to September. Good for cut flowers. Full sun and well drained soils. Drought resistant. |  | HEIGHT: 60cm. SPREAD: 60cm. |
| Achillea Moonshine (Yarrow or Milfoil) Soft silvery foliage with soft yellow flowers from June to August. Full sun and well drained soils. Drought resistant. |  | HEIGHT: 60cm. SPREAD: 60cm. |
| Achillea Summerwine (Yarrow) Clusters of deep claret flowers from July-Sept above feathery foliage. Plant in full sun in a well-drained soil. |  | HEIGHT: 60cm |
| Achillea Terracotta (Yarrow) Clump-forming with fern-like grey-green foliage. Brown-orange to pale yellow flowers from June to September. Well drained soil in full sun. |  | HEIGHT: 90cm SPREAD: 45cm. |
| Achillea Walter Funken Brown-orange flowers from mid to late summer. Moist, well drained soil in a sunny, open site. |  | HEIGHT: 60cm. SPREAD: 60cm. |
Aconitum carmichaelii (Monkshood) Lavender-blue flower spikes and deeply divided deep green leaves. Plant in sun or partial shade in well-drained soil. Warning: CAUTION toxic if eaten / harmful via skin |   | HEIGHT: 90-150cm. |