Bidens Yellow Crown
This is one of the most eye-catching Bidens with its bright yellow flowers covering the top of this mounding, semi-trailing plant. It can flower in partial sun, but the biggest and best blooms are reserved for plants receiving at least 4 hours of direct sun per day. It is a prolific bloomer and will  deliver from early summer to fall. Bidens are somewhat drought tolerant but do appreciate well-drained, rich soil and regular watering. It is important to fertilize them regularly with a general-purpose fertilizer and they can be pruned to control growth, if required.