Once established, brightly colored ranunculus plants require little maintenance. Plant bulbs in containers or directly in a flower bed for a bright show of color in spring. The blooms of the ranunculus make long-lasting cut flowers.
Give your plants plenty of sunlight. Choose a spot in your garden that receives full sun or place container-grown ranunculus in a south-facing window or patio that gets at least six hours of sunlight per day.
Make sure the plants have well-drained soil. Containers should have holes in the bottom, and garden soil needs to be light and well-drained. Ranunculus will not tolerate wet, hot soil.
Water whenever the soil dries out. Be careful not to overwater. Ranunculus plants, like many bulb flowers, require no fertilization, as the bulb contains adequate nutrients for the entire growing season.
Cut blooms in the early morning as soon as they start coloring. Place them in cool water with a flower preserver for seven to 10 days of color.
Stop watering the plants as the flowers begin to fade. Dig up the tubers once the growth has dried out and died. Slice the tops of the bulbs off and store them in a cool, dry location for planting next year.