| Description | Purpletop Vervain (Verbena bonariensis) A tall tender perennial often grown as an annual. I must admit I do not know if Red Top is a cultivar or another common name for the species Brazilian Vervain. I will treat it as a cultivar until proven otherwise. |
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| Pronunciation | (ver-BEE-nuh)(bon-ar-ee-EN-sis) |
| Plant Type | Perennial Tender |
| Hardiness Zone | 9-11, annual elsewhere |
| Sunlight | full |
| Moisture | average |
| Soil & Site | average |
| Flowers | bright lilac-violet, purple, borne on terminal clusters, tall strong stems |
| Leaves | narrow dense leaves |
| Dimensions | 4-5 feet tall |
| Propagation | seeds |
| Notes & Reference | #51-Armitage's Manual of Annuals, Biennials, and Half-Hardy Perennials (Armitage), #76-Annuals for Every Purpose), #109-Annuals and Tender Perennials for North American Gardens (Wayne Winterrowd) |
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