How to Grow Petunia:
Transplanting: Transplant when there are at least two sets of true leaves

Spacing: Plant out after danger of frost is past at 12 inches apart in full sun and a rich, light, sandy soil with excellent drainage

Soil: Feed monthly with a balanced fertilizer. The single-flowered forms will tolerate alkaline and poor soils

Temperature: For best results, grow on under full sun at 65-75° days/62-68° nights, however plants are tolerant of higher and lower temperatures