| Description | Ageratum 'Purple Top' has reddish-purple flowers which are different than the standard blue. |
|---|---|
| Pronunciation | (a-jer-A-tum)(hew-so-nee-AH-num) |
| Plant Type | All Plants, Annuals |
| Sunlight | full |
| Moisture | average |
| Soil & Site | average, well drained |
| Temperature | A tender garden annual turning black at the first frost. Planting sooner than Memorial Day weekend may be risky (zone #5). |
| Flowers | purple, an inflorescence of clusters of tubular flowers |
| Leaves | simple, green, opposite, heart shaped |
| Roots | fiborus |
| Dimensions | 12 inches |
| Maintenance | As the flowers die they need to be dead headed which is no easy task. Flowers are on short scapes and are hard to remove. This is one plant I don't enjoy the task of dead heading. |
| Propagation | seeds |
| Native Site | Native to Mexico and Central and South America |
| Misc Facts | Named after William Houston who collected the species in the Antilles and Mexico. |
| Notes & Reference | #27-Rodale's Annual Gardens (Paul Loewer), #28-Cottage Garden Annuals(Clive Lane), #51-Armitage's Manual of Annuals, Biennials and Half-Hardy Perennials (Alan Arimitage), #109-Annuals and Tender Perennials for North American Gardens (Wayne Winterroud) |
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