Mirabilis Jalapa - Seeds

Height: 6 to 50 inches (15 to 125 cm).
Growing Region: Zones 3 to 10.
Flowers: Summer and autumn.
Flower Details: Yellow; often two-toned. Deep throated trumpets. Fragrant. Flowers open in the evening.
Foliage: Green. Thin. Oval or heart-shaped.

Sow Outdoors: Surface. Following last frost or in autumn (warm areas). Spacing 4 to 40 inches (10 to 100 cm).

Sow Indoors: Use peat pots. Germination time: one to three weeks in the light. Temperature 70°F (21°C). Seven or eight weeks in advance. Transplant outdoors following the last frost or in autumn.

Requirements: Full sunlight or light shade. Good drainage. Soil pH 6-7. Ordinary soil. Monthly feed. Regular watering. Perennials should be cut back to the ground once flowering has finished. Propagate: dividing in the spring.

How to grow:
Beauty of the Night should be sown about a week after the last frost of spring on the surface. The plant likes to grow in an average soil that is slightly acidic to neutral (pH 6 to 7). Beauty of the night can be grown both in sunny and in partially shaded areas. 
If starting Beauty of the night and other Mirabilis off indoors then start about one and a half months in advance. The seeds should be sown in peat pots and takes about one to three weeks to germinate in the light at 20 degrees Centigrade. Once ready transplant the young beauty of the night plants following the last frost at from 15 to 20cm (small Mirabilis) or 30 to 90cm (larger species) apart.