Houseplant Care in March
Water more often as growth resumes, but check the soil first. Start half-strength fertilizer once new growth appears. Repot root-bound plants in fresh potting mix.
Light in March
The sun climbs higher, and UMN Extension notes that spring sunlight is stronger than winter light, even on cloudy days. Watch for leaf scorch on calatheas and prayer plants in south windows, and move them back from the glass if leaves bleach or brown.
Watering in March
As growth picks up, so does water use. UMN Extension advises checking the soil regularly and watering when the top inch feels dry, letting the plant, not the calendar, be your guide. For fertilizer, it advises starting with a balanced houseplant fertilizer at half strength every two to four weeks.
Pests and problems to watch in March
Aphids and thrips feed on tender new growth. UC IPM advises checking plants for aphids at least twice a week when they are growing rapidly.
What to plan now
UMN Extension calls spring the best time to repot, but only when a plant truly needs it. Buy potting mix and soil amendments now.