Learning Download: How to Grow Four O’clock
Four O’clock flowers get their name because they bloom in correlation with changes to light and temperatures, usually in the evenings between 4 and 8 p.m. They bloom in a trumpet shape with many different color varieties.
Before Planting: Four O’clock seeds don’t require pretreatment to germinate and sprout easily if planted in warm, moist soil.
Planting: Begin the seeds indoors up to six week before the last frost. Move the seedlings outdoors after the last spring frost, however use a hardening off process to slowly acclimate them to the outdoors.
Watering: Four O’clocks only need occasional watering.
Fertilizer: Plant Four O’clock flowers in rich, composted soil because they are heavy feeders.
Days to Maturity: Four O’clocks bloom from June through first frost.
Harvesting: Because of their short blooming period, Four O’clock flowers typically aren’t harvested as cut flowers.
Tips: Keep in mind, Four O’clocks are toxic compounds that can cause digestive issues or skin irritation.