How to Plant Moonflower Bush Seeds in Illinois

Moonflowers, also known as Calonyction, are related to the morning glory. Similar to morning glories, moonflowers grow on long trailing vines or bushes. But unlike morning glories, moonflowers bloom in the evening and at night -- hence the name. These flowers are only hardy to USDA zone 8, according to North Carolina State University. While the USDA zones in Illinois range from 4 to 6, you can plant the moonflower as an annual throughout the state.

Things You'll Need

• Cup
• Compost

Instructions

1. Heat 1 cup of water up to about 85 degrees Fahrenheit, and place the moonflower seeds in the water overnight to aid with germination.

2. Select a site in your yard that has full sun and well-drained soil. Add 6 to 8 inches of compost to the soil, and work it into the soil to a depth of 10 inches.

3. Dig small holes about ½ inch deep and 2 feet apart from each other. Place the moonflower seeds in the holes, and cover the seeds with soil. Plant the moonflower seeds once the last chance of frost is past.

4. Water the seeds for 3 to 5 minutes.

References

• North Carolina State University: Ipomea alba; Calonyction aculeatum
• Grow It: Illinois USDA Hardiness Zone Map