When Do Trees Bloom in Pennsylvania?

Dogwood Flowers

Nothing says ‘spring has sprung’ like a sunny day filled with fresh flower blossoms. The birds are singing. Bunnies and ducklings are frolicking. Perhaps there’s a gurgling brook in the background. 

But springtime isn’t the only season in which flowers are in bloom. In fact, there are many plant varieties that flower throughout the summer season. 

Considering when plants bloom is a great thing to keep in mind when planning your outdoor space. Diversity in plant species keeps your yard interesting throughout the year. To maintain a beautiful four-season outdoor space, make sure you think about the big picture when choosing your plants. Consider purchasing trees throughout the year — rather than at the beginning of the spring when that green thumb starts to itch. 

Here, we’ll explore the timeline for when trees in Pennsylvania are blooming. Keep in mind varying micro-ecosystems within the state. And while this is a rough timeline, flowering times vary from year to year based on weather conditions. 

Let’s take a look at some popular trees, along with a rough estimate of when they should bloom in the spring and summer.


Cornelian Cherry Dogwood: This tree, Latin name Cornus mas, is native to Europe. Its name comes from the red, edible fruit it bears in the fall. Expect its pale yellow flowers to bloom in March. 

Star Magnolia: Latin name Magnolia stellata, this tree has beautiful white flowers that bloom in March. Growing up to 8 feet tall, this tree is native to Japan. 

Oregon Grape Holly: As you might guess, Mahonia aquifolium is an evergreen most known for its berries and easily recognizable green leaves. But early in the spring, you can expect bright, beautiful yellow flowers.


Cherry Trees: Is there anything that says ‘spring has sprung’ more than beautiful cherry blossoms? There are many types of cherry trees, including Kwanzan — the ornate blossoms that cover the mall at the U.S. capital — Okame, Yoshiona, Pink Weeping and Weeping Snow Fountains cherry trees. Each of these show blossoms in the spring, and which often appear in April.

Magnolias: The big, hearty flowers of Magnolia trees begin to flower in April. 

Flowering Plum Trees: Plum trees were brought to the new world from Europe and — like apple trees — can be found in both gardens and naturalized woodlands throughout the region. Look for these purple, white or pink flowers to begin to bloom in April.


Hawthorn: Many trees of the genus Crataegus are native to North America. Keep an eye out for the white button flowers to begin blooming this time of year. 

Horse Chestnut: The large, hearty trees of the genus Aesculus will reveal flowers in a protruding cone structure. These flower structures eventually yield chestnuts — also known as buckeyes. 

Dogwoods: Many of the trees from the genus Cornaceae flower in early summer. Two examples are Kousa Dogwood (Cornus kousa), and Redtwig Dogwood (Cornus sericea).


Goldenrain Tree: The Goldenrain tree, or Koelreuteria paniculata, gets its common name from its long, drooping yellow flowers that grow on long terminal panicles. These trees are late bloomers, and put on a dazzling show — while offering some wonderful shade — in the July heat. 

Stewartia: These deciduous trees have small white button flowers that bloom in the mid to late summer. 

Rose-of-Sharon: These barky shrubs are not actually roses. There are many varieties. Look for large pink, white or blue flowers with long protruding stamens during the months of July and August. 


Crape Myrtle: Flowers from the trees in the Lagerstroemia genus have bright red or pink flowers that appear in late summer. These trees are popular for landscapers because the flowers last throughout the summer into the fall. 

Seven Son Flower: The Heptacodium miconioides tree is a type of honeysuckle that blooms in late summer. The fragrant flowers are found in white bunches.

Tree Hydrangea: Hydrangea is a genus of plant that includes both shrubs and trees that bloom throughout the spring and summer. You can find blossoms of many of the tree varieties in late summer.

Now that you have a better idea of when to expect flowers on the trees included in this list, you can start to think about your garden or outdoor space in a more holistic way. Give our Paul Bunyan team a call today to learn more about our landscaping services. 

We will help you take advantage of all the beautiful and vibrant colors and aromas the flowering season has to offer!

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