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Black Knight, an RHS Award of Garden Merit winner, is still one of the most strikingly colored and popular of all Buddlejas grown today. Some authors recommend a hard winter pruning, to as low as 6", every 2-3 years to rejuvenate plants and to promote...
- Soil & Moisture: Well-drained to average, moderately fertile soils.
- Outdoor Light: Full sun, Part sun, Part shade
- Pruning: Prune in late winter or early spring, rejuvenate with hard pruning every 2-3 years.
- Deer Resistance: Rarely Bothered
- pH Range: Acidic, Mildly Acidic, Neutral, Mildly Alkaline, Alkaline
- Grows To: 4-6'H x 4-6''W