Choosing annuals The seed catalogues are bursting with choice so to help you find the varieties of annual flowers you need for your garden, I've selected the twenty best varieties in each of these categories. Just click on the choice to see the full list. Hardy annuals Hardy annuals are raised from seed by sowing outside in the garden in spring; they flower and die later the same season. They're easy to grow but seed in individual colours may be hard to find. Half hardy annuals Half hardy annuals are plants from seed each year in a warm environment then planted outside in late spring for a colourful summer display. In warm climates they can be sown in the garden although the seed can be expensive. Blue flowers Pink flowers Purple flowers Red flowers White flowers Yellow flowers Unusual colours Mixtures For drying Fragrant flowers Blue flowers Pink flowers Purple flowers Red flowers White flowers Yellow flowers Unusual colours Mixtures Fragrant flowers Bicolours Best bought as seedlings Attractive foliage Adapted from The Planting Planner by Graham Rice   ©copyright 1999 Graham Rice. All Rights Reserved. All Images Digitally Watermarked.