Seed To Bloom:
Recommended. Sow indoors 6-8 weeks before last frost. Keep at 70°F.
Direct sow 1-2 weeks after last frost into warm soil.
WHEN TO SET OUTSIDE
After all danger of frost has passed and night temperatures have moderated.
PLACEMENT & CULTIVATION
Resilient medallion flower or melampodium pulls out all the stops and is covered in bright yellow starry blooms all summer–no matter how hot and humid or how poor the soil. This compact, care-free selection is best in borders with cosmos and other heat-loving summer annuals, or in containers and window boxes. Provide even moisture and well-drained soils for the best show.
About 1" per week is plenty. Do not overwater.
Prefers acid soil, about 5.5-6.5, but will tolerate neutral
Mix in a few inches of compost prior to planting. If soil is poor, supplement with an organic liquid or granular fertilizer once per month.
Diseases & Pests:
Powdery mildew can be problematic. Be sure to space properly and set in a location with good airflow. Treat with organic fungicide if necessary.