Can calendula grow indoors year-round?

Calendula can grow indoors with the right attention to light and temperature. The ideal situation is a south-facing window that receives six or more hours of direct sunlight for optimal flower growth. If you do not have access to this, consider supplementing with grow lights for a minimum of 14 hours each day. Light and temperature, in combination with consistent conditions, allow for steady growth and flowering.

Avoid fungal problems with proper airflow management. Use oscillating fans in the vicinity to circulate air without a direct draft. Index plants 6 inches apart, spacing for breathing room.Water only as the topsoil dries to limit humidity-related diseases such as powdery mildew.

Select compact varieties that are suitable for growing indoors. 'Dwarf Gem' plants don't grow more than 12 inches high, making them good for small areas. 'Citrus Cocktail' takes to container life nicely. These compact varieties handle root confinement better than taller varieties and produce an abundance of blooms.

Address common problems caused by indoor growing sooner rather than later. Stems becoming leggy indicate a lack of light, and adjustments to lamp positioning will be necessary. Yellow leaves generally indicate overwatering, so checking for soil moisture may be warranted. Spray aphids with water upon discovery to eliminate them quickly, before they can establish a physical infestation.

Optimize blooming potential with specific care routines. Pinch the stems that are four inches tall to promote bushiness. Deadhead dead blooms every day to keep the energy in the plant's leaves. Practice quarterly root pruning for container-bound plants. These will have excellent growth every year inside.

Read the full article: How to Grow Calendula: Complete Guide