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Herb Specifications Season: Perennial USDA Zones: 8 - 11 Height: 120 inches Bloom Season: Mid summer Bloom Color: Purple & White Environment: Full sun to partial shade Soil Type: Prefers moist, fertile soils, high in organic matter, pH 6.5 to 6.8 Planting Directions Temperature: 65 - 75F Average Germ Time: 14 - 21 days, scarify seed to hasten germination Light Required: Yes Depth: Plant seeds 1/4 inch deep Sowing Rate: 1 -2 seeds per plant Moisture: Keep seeds moist until germination Plant Spacing: 9 - 12 inches