According to the University of Illinois Extension, all-purpose plant food is fine for bulbs. The Extension recommends using a 10-10-10 soluble fertilizer or an equivalent bulb fertilizer. Spring bulbs should not be fed immediately after they have started flowering.
About this Author
Aileen Clarkson has been an award-winning editor and reporter for more than 20 years, earning three awards from the Society of Professional Journalists. She has worked for several newspapers, including "The Washington Post" and "The Charlotte Observer." Clarkson earned a Bachelor of Arts in journalism from the University of Florida.