7 easy flowers to grow in August for a colourful garden

August is an ideal month to plant seasonal flowers, with monsoon conditions helping plants establish well. Seven easy-to-grow varieties can add vibrant color to gardens through autumn and winter: marigold, zinnia, cosmos, sunflower, balsam, calendula and dianthus. With suitable sunlight, watering and regular care, these flowering plants can thrive and create a colourful garden in the months ahead.