This annual is ideally suited as a ground cover plant for those hot, humid climates. Vinca Rosea grows 8 - 10 inches high, but it is a fast spreader and fills in spaces nicely making it perfect for beds, borders, and as a general ground cover plants.
Sow pink Periwinkle seeds indoors 6 - 10 weeks before the last frost is expected. Cover the seeds with 1/4 inch of potting mix, spray with water to moisten and press down lightly. At about 2 - 3 inches tall, transplant the strongest plants into individual pots.
Periwinkles can be moved outside once the temperature is consistently above 65F degrees. Vinca Rosea is fast-growing in hot temperatures and tolerant of nutrient-poor and sandy soils. The pink Periwinkle plant produces large numbers of seeds, and especially in warmer climates, the seeds may sprout Periwinkle seedlings for next season.
Season: Annual USDA Zones: 3 - 10 Height: 8 - 10 inches Width: 24 - 36 inches Bloom Season: Summer through fall Bloom Color: Pink Growth Rate: Fast Environment: Full sun Foot Traffic: Light Soil Type: Moist, well-drained, pH 6.1 - 7.8 Deer Resistant: Yes
Temperature: 65 - 70F Average Germ Time: 10 - 14 days Light Required: No - complete darkness to germinate Depth: 1/4 inch Sowing Rate: 2 - 3 seeds per plant or approximately 2,000 seeds covers 50 square feet Moisture: Keep seeds moist until germination occurs Plant Spacing: 6 - 9 inches