Learning Download: How to Grow Calendula
In addition to bringing a bright burst of color to the garden, Calendula flowers are grown to be used as a medical salve and the flowers are edible. The blooms are frost tolerant, which creates long-lasting color in the garden.
Before Planting: Calendulas prefer full sun but will grow in partial shade. They like rich, well-drained soil with a pH of 5.5 to 7.0, but the flowers will tolerate poor soil as well.
Planting: Sow Calendula seeds directly into the garden early in the season and cover with 1/4 inch of soil.
Watering: Water them during dry periods. Add mulch to retain moisture and deter weeds.
Fertilizer: Add compost to the soil to improve it and add a general-purpose fertilizer once a month.
Days to Maturity: Calendula flowers bloom from mid-summer up until the first frosts in the fall.
Harvesting: Prior to trimming the flowers and bringing them indoors to arrange in a vase, check for aphids.
Tips: Calendula is a good companion plant when planted near asparagus and tomatoes.