Purple-flowering trees like jacaranda, crepe myrtle, and eastern redbud offer striking color, but each has distinct climate requirements. If you are searching for a tree with purple flowers, you likely want a show-stopping centerpiece for your yard. The good news is that there is a purple blooming tree for almost every hardiness zone in the United States.
Before you buy, you need to check your local USDA zone and your available space. Some of these trees grow massive canopies, while others stay small enough for patios. In this guide, we will break down the best options, care tips, and common mistakes to avoid.
Tree With Purple Flowers: Top Picks For Every Climate
Not all purple trees are created equal. Some bloom in early spring, while others wait until summer. Here are the most reliable species that deliver that vivid purple punch.
Jacaranda (Jacaranda Mimosifolia)
Jacarandas are the undisputed kings of purple bloomers. They thrive in warm, frost-free climates like Southern California, Florida, and parts of Arizona. In late spring, they drop thousands of trumpet-shaped flowers, creating a purple carpet underneath.
- USDA Zones: 9-11
- Height: 25-40 feet
- Sun: Full sun
- Soil: Well-draining, sandy loam
These trees are messy. The flowers fall constantly, and the seed pods are hard. If you plant one, keep it away from driveways and pools. You will be sweeping petals for about eight weeks.
Eastern Redbud (Cercis Canadensis)
Redbuds are native to the eastern United States. They produce tiny, pea-like purple-pink flowers that hug the branches directly. This is one of the first trees to bloom in spring, often before the leaves emerge.
- USDA Zones: 4-9
- Height: 20-30 feet
- Sun: Part shade to full sun
- Soil: Adaptable, but prefers moist, well-drained
The redbud is a great choice if you have a smaller yard. It also handles colder winters much better than the jacaranda. Look for the ‘Forest Pansy’ variety if you want deeper purple foliage all season long.
Crepe Myrtle (Lagerstroemia)
Crepe myrtles are a staple in the southern United States. They bloom in mid-summer when most other trees are done. The flower clusters are large and crinkly, resembling crepe paper. You can find them in shades from light lavender to deep purple.
- USDA Zones: 6-10
- Height: 10-30 feet (dwarf varieties exist)
- Sun: Full sun (at least 6 hours)
- Soil: Tolerates most soil types
One major tip: do not commit “crepe murder.” This is the bad habit of chopping the tree down to stubs in winter. It ruins the natural shape and creates weak branches. Let the tree grow naturally for the best look.
Royal Empress Tree (Paulownia Tomentosa)
This tree is famous for its incredibly fast growth and huge lavender flower clusters. It can grow up to 15 feet in a single year. However, it is considered invasive in many eastern states because it spreads aggressively.
- USDA Zones: 5-9
- Height: 40-50 feet
- Sun: Full sun
- Soil: Any, as long as it drains
If you want a quick screen, this works. But check your local regulations first. In some areas, selling or planting this tree is illegal. It can crowd out native plants quickly.
Chaste Tree (Vitex Agnus-Castus)
Chaste trees are actually large shrubs that can be trained into small trees. They bloom in late summer with spikes of fragrant purple flowers. They are drought-tolerant and deer-resistant, making them perfect for dry, sunny spots.
- USDA Zones: 6-9
- Height: 10-20 feet
- Sun: Full sun
- Soil: Dry, rocky, or sandy
These trees are low-maintenance. They rarely need fertilizer and actually bloom better when the soil is not too rich. If you live in a hot, dry area, this is your best bet.
How To Choose The Right Purple Flowering Tree
Picking the right tree is about matching the plant to your environment. Here is a simple step-by-step process to avoid wasting money on a tree that will die.
- Check your hardiness zone. Look up your USDA zone online. If you are in zone 5, do not buy a jacaranda. It will not survive the winter.
- Measure your space. Look at the mature height and width. Do not trust the small sapling size at the nursery. A 40-foot tree needs at least 20 feet of clearance from your house.
- Assess sunlight. Most purple bloomers need full sun. If your yard is shady, you will get few flowers. Look for a redbud, which tolerates part shade.
- Check soil drainage. Dig a small hole and fill it with water. If it takes more than 2 hours to drain, you need to amend the soil or pick a different tree.
- Consider maintenance. Some trees drop huge messes. Others need pruning. Be honest about how much time you want to spend.
Planting Your Tree Correctly
Proper planting is the key to survival. Dig a hole that is two to three times wider than the root ball but no deeper. The top of the root ball should sit slightly above the soil line. Backfill with native soil, not potting mix. Water deeply right after planting.
Mulch around the base with 2-3 inches of wood chips. Keep the mulch a few inches away from the trunk to prevent rot. Water every other day for the first month, then taper off.
Common Mistakes To Avoid
- Planting too deep: This is the number one killer of new trees. The trunk flare must be visible.
- Over-fertilizing: Too much nitrogen creates leaves, not flowers. Use a low-nitrogen fertilizer in early spring.
- Pruning at the wrong time: If you prune a spring bloomer in winter, you cut off the flower buds. Prune right after the flowers fade.
- Ignoring water needs: Jacarandas need deep watering during dry spells. Crepe myrtles need consistent moisture to bloom well.
When Do Purple Flowering Trees Bloom?
Bloom time varies by species and location. Here is a general timeline to help you plan for continuous color.
Early Spring Bloomers
Eastern redbuds are the earliest. They often bloom in March or April, depending on your zone. The flowers appear before the leaves, so the whole tree looks purple for about two weeks.
Late Spring Bloomers
Jacarandas take over in May and June. In Southern California, they are the iconic sight of late spring. The bloom period lasts about two months, but it is not continuous. It comes in waves.
Summer Bloomers
Crepe myrtles and chaste trees bloom from June through September. They are the longest-blooming purple trees on this list. You get months of color, not just a short burst.
How To Care For A Tree With Purple Flowers
Once your tree is established, the care routine is fairly simple. Here are the main tasks you need to perform.
Watering
Deep watering is better than frequent shallow watering. Water slowly at the base of the tree so the moisture reaches the roots. During the first year, water once a week if there is no rain. After that, most trees are drought-tolerant.
Fertilizing
Use a balanced fertilizer like 10-10-10 in early spring. For flowering trees, you can switch to a bloom booster with higher phosphorus. Do not fertilize after July, as this encourages new growth that will not harden before winter.
Pruning
Remove dead or crossing branches in late winter. For spring bloomers, wait until after they flower. For summer bloomers like crepe myrtle, you can prune in late winter. Always use clean, sharp tools.
Pest And Disease Watch
Purple flowering trees are generally tough. However, watch for aphids on new growth. A strong spray of water knocks them off. Crepe myrtles can get powdery mildew if they are in shade with poor air circulation. Ensure good spacing.
Landscaping Ideas With Purple Blooming Trees
These trees are versatile. You can use them as focal points, street trees, or part of a mixed border. Here are some design tips.
- Pair with yellow: Purple and yellow are complementary colors. Plant a purple tree near a golden chain tree or yellow daylilies.
- Use as a specimen: A single jacaranda in the middle of a lawn is a dramatic statement.
- Create an allee: Line a driveway with crepe myrtles for a stunning entrance.
- Underplant with bulbs: Plant white daffodils or pink tulips underneath. The contrast is beautiful in spring.
Container Growing
If you have a small patio, you can grow a dwarf crepe myrtle or a chaste tree in a large pot. Use a container at least 18 inches wide. Make sure it has drainage holes. You will need to water more often, but this is a great option for renters.
Frequently Asked Questions
What is the fastest growing tree with purple flowers?
The Royal Empress tree is the fastest. It can grow 10-15 feet per year. However, it is invasive in some areas. A safer fast-growing option is the crepe myrtle, which grows about 2-3 feet per year.
Do purple flowering trees need full sun?
Most of them do. Jacarandas, crepe myrtles, and chaste trees need at least 6-8 hours of direct sun to bloom heavily. The eastern redbud is the exception and can handle partial shade.
Can I grow a jacaranda in a cold climate?
No. Jacarandas are not frost-hardy. They will die in temperatures below 20°F. If you live in zone 8 or colder, choose a redbud or a chaste tree instead.
Why is my purple tree not flowering?
The most common reasons are lack of sun, too much nitrogen fertilizer, or pruning at the wrong time. Also, young trees need a few years to establish before they bloom. Be patient.
Are purple flowering trees messy?
Yes, some are. Jacarandas drop massive amounts of flowers and seed pods. Crepe myrtles drop their bark and old flower clusters. If you want a cleaner tree, the redbud is the least messy option.
Final Thoughts On Growing Purple Trees
Adding a tree with purple flowers to your landscape is a rewarding project. You get an annual show of color that few other plants can match. Just do your homework first. Match the tree to your climate, give it enough space, and provide basic care.
Start with a healthy sapling from a reputable nursery. Check the roots for circling, which can stunt growth. Plant it correctly, water it consistently for the first year, and you will have a beautiful flowering tree for decades.
Remember that the bloom period is often short, but the wait is worth it. When that canopy turns purple, you will have the best-looking yard on the block. Choose wisely, plant with care, and enjoy the color.
If you are still unsure, visit a local botanical garden to see these trees in person. Seeing the mature size and flower color up close will help you make the final decision. Happy planting.