This stunning winter45flowering bulb produces large white trumpet blooms with fine red margins admired for their large showy blooms amaryllis plants are a firm favourite for the windowsill or conservatory amaryllis 39picotee39 is a well45known variety popular for its pretty red45margined flowers which shine out on dull winter days hippeastrum plants require a minimum temperature of 13c 4055f41 and are best grown as a house plant or in a heated greenhouse height 4