About PlantSweet William Black Prince is a very popular and easy to cultivate biennial garden flower. Large flowering, sweetly scented double dark red, almost black blossoms are produced in an abundance on dark foliage on 45 cm erect stems.
Propagation Sweet William Black Prince Plant Height 18 inches Sow seeds sparingly in trays or directly outdoors from late spring to autumn for blooms the following year. Cover with 1/8 to 1/4-inch fine soil and firm down. Keep soil moderately moist during germination. When seedlings are large enough to handle transplant to trays and grow on or if planted directly outside at 2 inches high thin to 8 to 10 inches apart. Plant in full sun or partial shade. Prefers a somewhat moist cool climate. Remove dead flowers to encourage second blooming. Will readily reseed itself, if allowed..
|Preferred climate||13 to 24 (°C)|
|Germination Time||7 to 14 days|
|Season to plant||Spring and autumn|
To provide borders at Garden corners, Garden pathways, Garden .
To form flower beds in garden.
For landscaping at Pavements ,Garden Patios.