The cherry tree bloom time ranges from March through May in most areas across the country. Your exact bloom dates depend on where you live and which variety you grow in your yard. Southern zones see flowers weeks before northern gardens do. Picking the right varieties gives you flowers for months instead of just days each spring.
I watch my cherry trees bloom each spring with great interest. My Okame cherry opens its pink flowers in late March before anything else in my yard wakes up from winter. The Yoshino follows about two weeks later in early April with its white clouds of flowers. My Kwanzan shows off deep pink double flowers in late April. When I first planted these trees, I chose them to spread the bloom season across two full months in my yard.
The when do cherry trees flower question depends on two main factors that your tree tracks through the seasons. First, the tree needs enough cold hours during winter dormancy. Most cherries need 700-1000 chill hours below 45°F (7°C) to reset their internal clock for spring blooms. Second, warm spring temperatures trigger the buds to open. The tree counts growing degree hours as temps rise each day in spring.
Research shows the best temperature for cherry flowers is around 68°F (20°C) for best results. Warmer than 86°F (30°C) can hurt flower development and reduce your bloom quality. Cool spring weather extends the bloom period for you to enjoy. Hot spells cut it short. You have no control over the weather but you can pick varieties that match your local climate patterns for best results.
The cherry blossom season varies by location across the country in big ways. Southern California and the Gulf Coast see blooms in late February or early March each year. The Pacific Northwest peaks in late March to mid-April. Washington DC is famous for blooms in late March through early April. Northern states wait until late April or even May for their cherry show to begin.
Knowing your cherry bloom by zone helps you plan your garden for spring color each year. Zone 5-6 gardeners see blooms in mid to late April most years. Zone 7-8 blooms come in late March to early April. Zone 9-10 blooms happen in February or March. I tested several varieties in my zone 7 garden to see which ones bloomed best. The ones matched to my area bloomed better than those from warmer zones did. Check your USDA zone and then look at bloom times for varieties you want to grow in your yard.
Late frost can ruin your cherry blooms if flowers open too early in spring. Early blooming varieties face the most risk from cold snaps that hit after buds open. Cover small trees with sheets or frost cloth when temps drop below 32°F (0°C) during bloom. Larger trees are hard to protect but often survive light frosts with only partial damage to the flowers. I lost half my Okame blooms one year to a late frost.
Plant several cherry varieties with different bloom times to extend your spring show in your yard. Early bloomers like Okame start the season with a burst of color in late March. Mid-season Yoshino brings peak color for a few weeks. Late Kwanzan finishes the display into May. This mix gives you weeks of flowers instead of just a few days each spring. Your yard will be the envy of the block all spring long.
Read the full article: 15 Cherry Tree Varieties for Your Garden
