| IRONWEED | Purple-flowered plant in the genus Vernonia (8) |
| IRON | _weed, purple-flowered plant in the genus Vernonia (4) |
| AUBRETIA | Trailing purple-flowered plant, much grown in rock-gardens (8) |
| MARJORAM | Purple-flowered plant used in seasoning (8) |
| KNAPWEED | Hardy purple-flowered plant |
| THISTLES | Wild, prickly, purple-flowered plants (8) |
| LAVENDER | Fragrant lilac-flowered plant in mint family - even lard, oddly! (8) |
| SPEEDWELL | Blue-flowered plant in the genus Veronica with a species considered to be a good luck charm for travellers; or, Acorn's friend in Watership Down (9) |
| BROOM | Yellow-flowered plant in the genus Cytisus; a besom; or, an implement used in curling (5) |
| LEOPARDS | - bane; herbaceous perennial also known as monkshood, queen of all poisons and devil's helmet, Aconitum; or, a plant in the genus Doronicum (8) |
| PEARTREE | Fruit-bearing woody plant in the genus Pyrus (4, 4) |
| BALLFERN | Fronded vascular plant in the genus Davallia (4,4) |
| WISTERIA | Vigorous purple-flowered climbing vine in the lane of desperate housewives |
| SALSIFY | Purple-flowered plant of the dandelion family, sometimes called the oyster plant because of the taste of its edible root (7) |
| OXEYE | Yellow-flowered plant in the Asteraceae family (5) |
| STJOHN | ___'s wort, yellow-flowered plant in the family Hypericaceae (2,4) |
| CHIVE | Small purple-flowered plant whose leaves are used in cooking (5) |
| HEATHER | Purple-flowered plant of the Highlands (7) |
| SPEARMINT | The purple-flowered plant Mentha spicata which yields an oil used for flavouring |
| LILAC | Purple-flowered plant of the olive family (Oleaceae) native to south-eastern Europe; Syringa vulgaris (5) |
