These low growing bushy mimulus plants produce masses of tubular blooms looking much like exotic wide snapdragon flowers although monkey flowers are tender perennials they are best treated as an annual for beds containers and baskets except in the mildest parts of the country mimulus 39magic rainbow39 is ideal to add a bright splash of summer colour from june to august in lightly shaded moist beds in the garden height and spread 30cm 4012amp343941