Shades of orange, yellow, red, bronze, and copper adorn the Cafe au Lait Buttercups in early summer. Ranunculus make lovely cut flowers, and grow well in containers. These bulbs will need at least 4-6 weeks of cool (evening 40-50° & daytime 60-75°) weather to sprout. If too warm, they will stay dormant. It can take 6-8 weeks to sprout.