The name “great” is fitting for this plant as it grows to a towering height of 9 feet. The atropurpurea describes the plants purple stems. Flowers are also large: white and 10 inches across. Very tropical in appearance. Leaves are divided and toothed. Does best in acid, rich, moist soil.
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Size: Height: 6 ft. to 9 ft.
Width: 3 ft. to 5 ft.
Plant Category: annuals and biennials,
Plant Characteristics: seed start,
Foliage Characteristics: medium leaves,
Flower Characteristics: old fashioned/heritage, showy,
Flower Color: whites,
Bloomtime Range: Late Spring to Mid Fall
USDA Hardiness Zone: 3 to 9
AHS Heat Zone: Not defined for this plant
Light Range: Part Shade to Full Sun
pH Range: 4.5 to 6.5
Soil Range: Some Sand to Some Clay
Water Range: Normal to Normal
FertilizingHow-to : Fertilization for Annuals and Perennials
Annuals and perennials may be fertilized using: 1.water-soluble, quick release fertilizers; 2. temperature controlled slow-release fertilizers; or 3. organic fertilizers such as fish emulsion. Water soluble fertilizers are generally used every two weeks during the growing season or per label instructions. Controlled, slow-release fertilizers are worked into the soil ususally only once during the growing season or per label directions. For organic fertilizers such as fish emulsion, follow label directions as they may vary per product.
LightConditions : Partial Shade
Partial Shade is defined as filtered light found beneath trees with high limbs. Partial shade usually offers some protection from direct afternoon sun.
Conditions : Part Sun
Part Sun refers to filtered light, with most sun being received during the afternoon hours. Shade usually occurs during the morning hours.
WateringConditions : Moist and Well Drained
Moist and well drained means exactly what it sounds like. Soil is moist without being soggy because the texture of the soil allows excess moisture to drain away. Most plants like about 1 inch of water per week. Amending your soil with compost will help improve texture and water holding or draining capacity. A 3 inch layer of mulch will help to maintain soil moisture and studies have shown that mulched plants grow faster than non-mulched plants.
PlantingHow-to : Sow Seed
Now is the preferred time to sow seed.