| Achillea chrysocoma is a vigorous spreader with golden flower heads while Achillea x huteri makes neat hummocks of grey-green leaves and has white flowers. |
| First-year flowering perennials which can be sown early in heated propagators then grown on in a greenhouse or cool room include achillea, helenium, echinacea and salvia. |
| This change often begins with the first flush of flower from crocosmias, along with achillea and heleniums, and followed by rudbeckia, helianthus and lobelia Queen Victoria. |
| Place clumps of spiky flowers such as red hot pokers and verbascums between clumps of rounded flat flowers, like daisies and achillea to create maximum interest. |
| Spray artichokes, cynara carduncularus, achillea, lavender, hydrangea, acanthus and eryngiums with snow, glitter or metallic paints available from DIY shops. |
| These include achillea, potentilla, red hot pokers, bergenia, penstemon, geranium, zantedeschia and crocosmia. |
