Geranium horizon appleblossom Geranium horizon appleblossom flowers from June until October, it produces delicate uniform pale pink blooms alongside sturdy stems and well branched boasting foliage. This Zonal Pelargonium is the perfect choice for patio containers and sits beautifully in pots adding ornamental value to pretty decking areas, balconies and courtyards. Zonal geranium enjoy growing in a sunny position, they are easy to care for and feature weather resistant blooms. Its large weatherproof flowerheads add colour and architectural value to lifeless areas in outdoor spaces and look superb in conservatories and greenhouses adding garden interest.