When flowers bloom depends on where you live because air and soil temperatures are major influences on the capability of a flower to grow. In warm-winter climates like U.S. Department of Agriculture plant hardiness zones 8 through 10, flowers will likely bloom earlier than in colder zones. In the event of annuals, warm-season flowers typically will bloom from April through the summer, such as late June.
Roses
Roses (Rosa spp.) May bloom all at once as several heirloom varieties do, or during the summer for example late June. Wild roses bloom only once in late spring, but if they are located in a suitable microclimate, they could continue to bloom through late June. Rose varieties contain hybrid, named because the scent was similar to the beverage tea; floribunda; and grandiflora. Nearly all roses require at least six hours of sunlight a day. If you live in a foggy coastal area, choose a rose that will bloom in dappled shade like the hybrid tea roses “Irish Fireflame” or “Lady X.”
Bulbs, Corms and Rhizomes
Gladiolus (Gladiolus spp.) , in zones 7 through 10, grows from 18 inches to 5 feet high with sword-shaped leaves about a central stem. The flowers open on the stem in the bottom toward the top. All colors are available except for blue. Blossoms could be splashed with over 1 color. Asiatic lilies (Lilium spp.) , growing in zones 4 through 9, supply colour and scent in the backyard. The plants grow from 2 to 5 feet high with flowers growing to nearly 5 inches in diameter to a central stem. When cutting lilies for bouquets, cut as little of the leaves and stem as possible. Daylilies (Hemerocallis spp.) , growing in zones 3 through 10, bloom continuously through the summer. Each flower only lasts for a single day, hence the name. But 1 plant can produce an assortment of blossoms.
Perennials
Hydrangea (Hydrangea spp.) , in zones 4 through 9, favors a cooler climate like on the coast. It flowers in pink, pink, blue and purple. Purple coneflowers (Echinacea purpurea), in zones 3 through 9, are carefree, drought-tolerant flowers. Hibiscus (Hibiscus spp.) Grows in zones 5 through 9 and contains flowers around 4 inches across in white, yellow, orange and red. The flowers only last a day or so in cut bouquets. The trees grow to 8 feet high but choose to pruning nicely.
Annuals
Several cool-season yearly flowers such sweet peas and nasturtiums can last through late June if in a cooler climate. Most will stop blooming when the summer heat arrives. Plant zinnias (Zinnia elegans), marigolds (Tagetes erecta) and cosmos (Cosmos bipinnatus) to take over the task of offering color during late June. Zinnias grow from 6 inches to 48 inches in bright colors, and marigolds bloom in orange, yellow, rust red and burgundy. Cosmos bloom in pink, white and purple, reaching 4 to 5 ft in height.