Annuals Annuals are an excellent way to create a great splash of summer colour in the garden or long-blooming annual baskets. Are you looking for an easy way to fill empty spots in your garden? Annual flowers can provide you with a quick way to fill spots in your garden with beautiful flowers. There’s a wide range of annuals to choose from depending on soil conditions, colour preferences, and sun or shade positions. As passionate gardeners ourselves, we would be happy to assist you in picking out the perfect annual flowers based on your garden’s conditions. With a large selection of different growing habits and colours, Johnston’s greenhouse can offer you the annual flowers that you prefer most. If desired, our staff will give you tips on how to plant and grow annuals, and create colour combos for your most beautiful garden and flower groupings yet!