Delaware’s coastal environment demands salt-tolerant trees that withstand ocean spray and sandy soil. Finding the best trees to plant in delaware means choosing species that thrive in both the coastal plains and the Piedmont region. Whether you live near Rehoboth Beach or inland near Dover, the right tree can handle humidity, occasional drought, and salty winds.
This guide walks you through top picks for shade, privacy, and year-round beauty. You will learn which trees survive Delaware’s unique climate and how to plant them for long-term success.
Best Trees To Plant In Delaware
Delaware sits in USDA hardiness zones 7a and 7b, with mild winters and hot, humid summers. The state’s proximity to the Atlantic Ocean means salt spray can damage sensitive foliage. The soil ranges from sandy loam near the coast to heavier clay inland.
Here are the top performers for Delaware landscapes:
Eastern Red Cedar
This native evergreen handles salt spray better than most. It grows in poor, sandy soil and provides dense privacy screens. Eastern red cedar reaches 40 to 50 feet tall and attracts birds with its blue berries. It is drought-tolerant once established.
Red Maple
Red maple offers brilliant fall color and adapts to wet or dry sites. It grows fast, up to 2 feet per year, and reaches 40 to 60 feet. Choose a cultivar like ‘October Glory’ for reliable red foliage. It tolerates Delaware’s clay soil well.
White Oak
White oak is a long-lived shade tree that resists wind and salt. It grows slowly but can live for centuries. The tree produces acorns that feed wildlife. Plant it in full sun with well-drained soil.
American Holly
This broadleaf evergreen adds winter interest with red berries and glossy leaves. It grows 15 to 30 feet tall and thrives in partial shade. American holly is salt-tolerant and works well as a foundation plant.
River Birch
River birch loves wet soil and handles heat well. Its peeling bark adds texture year-round. It grows 40 to 70 feet tall and is resistant to bronze birch borer. Plant it near downspouts or low-lying areas.
Serviceberry
Serviceberry offers white spring flowers, edible berries, and orange fall color. It grows 15 to 25 feet tall and works as a small tree or large shrub. Birds love the fruit. It tolerates light shade.
Black Gum
Black gum, also called tupelo, has brilliant red fall foliage. It grows 30 to 50 feet tall and handles wet or dry soil. The tree is pest-resistant and provides food for pollinators.
Japanese Zelkova
Japanese zelkova is a tough urban tree that resists Dutch elm disease. It grows 50 to 80 feet tall with a vase-shaped canopy. It tolerates salt, drought, and compacted soil. Use it as a street tree or shade specimen.
Southern Magnolia
Southern magnolia has large, fragrant flowers and evergreen leaves. It grows 60 to 80 feet tall in Delaware’s coastal areas. Choose a cold-hardy cultivar like ‘Bracken’s Brown Beauty’ for better winter survival.
Kentucky Coffeetree
This tree has unique, coarse bark and large compound leaves. It grows 60 to 75 feet tall and tolerates salt, drought, and pollution. It is a great choice for urban yards or parking strips.
Factors To Consider Before Planting
Choosing the right tree involves more than picking a pretty species. You need to match the tree to your site conditions.
Salt Tolerance
If you live within a few miles of the coast, salt tolerance is critical. Salt spray can burn leaves and stunt growth. Trees like eastern red cedar, white oak, and Japanese zelkova handle salt well. Avoid salt-sensitive species like sugar maple or hemlock.
Soil Type
Delaware’s soil varies from sandy near the beaches to clay in the Piedmont. Sandy soil drains fast and may require extra watering. Clay soil holds moisture but can be heavy. Test your soil pH; most trees prefer 6.0 to 7.0. Amend with organic matter if needed.
Sunlight
Most trees need full sun, meaning at least 6 hours of direct light daily. Some, like American holly and serviceberry, tolerate partial shade. Check your yard’s sun patterns before buying.
Space
Consider mature size. A red maple needs 40 feet of clearance from buildings and power lines. A small tree like serviceberry fits in a 15-foot space. Measure your planting area and account for root spread.
Maintenance
Some trees require pruning, watering, or pest control. Native trees like black gum need less care than exotics. Factor in your time and willingness to maintain the tree.
How To Plant A Tree In Delaware
Proper planting gives your tree the best start. Follow these steps for success.
- Choose the right time. Early spring or fall is best. Avoid planting in summer heat.
- Dig a hole twice as wide as the root ball but no deeper. The top of the root ball should sit slightly above ground level.
- Remove the tree from its container. If it is balled and burlapped, cut away the burlap and wire cage.
- Place the tree in the hole. Check that it is straight from all angles.
- Backfill with native soil. Do not add fertilizer or compost to the hole.
- Water deeply to settle the soil. Add more soil if needed.
- Apply 2 to 3 inches of mulch around the base. Keep mulch away from the trunk.
- Stake only if necessary. Remove stakes after one year.
- Water weekly for the first two growing seasons. Give 10 to 15 gallons per week.
Delaware’s sandy soil drains quickly, so young trees need consistent moisture. Clay soil holds water longer; check before watering to avoid rot.
Best Trees For Specific Delaware Landscapes
Different yards have different needs. Here are targeted recommendations.
Best Trees For Coastal Areas
- Eastern red cedar
- White oak
- Japanese zelkova
- Southern magnolia (cold-hardy cultivars)
- Black cherry
Best Trees For Small Yards
- Serviceberry
- Dogwood (native)
- Redbud
- Japanese maple
- Fringe tree
Best Trees For Privacy Screens
- Eastern red cedar
- American holly
- Arborvitae (Green Giant)
- Leyland cypress (use with caution due to disease)
- White pine
Best Trees For Fall Color
- Red maple
- Black gum
- Sugar maple (inland only)
- Sweetgum
- Ginkgo
Common Mistakes When Planting Trees In Delaware
Avoid these errors to keep your tree healthy.
- Planting too deep. This is the number one killer of new trees. The root flare must be visible.
- Overwatering. Sandy soil drains fast, but clay soil can stay wet. Adjust watering based on your soil.
- Choosing salt-sensitive trees near the coast. Sugar maple, beech, and hemlock struggle with salt.
- Ignoring power lines. Tall trees under wires need constant pruning or removal.
- Skipping mulch. Mulch conserves moisture and moderates soil temperature. Use wood chips, not rocks.
Native Vs. Non-Native Trees
Native trees are adapted to Delaware’s climate and support local wildlife. They often need less water and fertilizer. Non-native trees can offer unique features but may require more care.
Good native choices include red maple, white oak, black gum, and eastern red cedar. Non-native options like Japanese zelkova and southern magnolia perform well if chosen carefully.
A mix of natives and adapted exotics creates a resilient landscape. Avoid invasive species like Norway maple, Bradford pear, and tree of heaven.
When To Plant Trees In Delaware
The best planting windows are early spring (March to April) and fall (September to October). Spring planting gives roots time to establish before summer heat. Fall planting allows root growth during cool weather.
Avoid planting in midsummer. Heat stress can kill young trees. If you must plant in summer, water deeply and provide shade for the first few weeks.
How To Care For Young Trees
New trees need attention for the first three years.
- Water weekly during dry spells. Deep watering encourages deep roots.
- Mulch annually. Refresh the mulch layer to 3 inches.
- Prune only dead or damaged branches. Wait until the tree is dormant for major pruning.
- Protect the trunk from lawnmowers and string trimmers. Use a tree guard if needed.
- Fertilize sparingly. Most trees get nutrients from soil. Test soil before adding fertilizer.
Dealing With Delaware’s Weather Challenges
Delaware’s climate can be tough on trees. Here is how to handle common issues.
Salt Spray
Rinse foliage with fresh water after heavy storms. Plant salt-tolerant species. Create windbreaks with fences or shrubs.
Drought
Water deeply during dry spells. Mulch to retain moisture. Choose drought-tolerant trees like red cedar or black gum.
Storms
Prune weak branches regularly. Stake young trees in exposed areas. Choose wind-resistant species like white oak.
Pests
Common pests in Delaware include aphids, scale, and borers. Monitor trees and treat early. Native trees often resist pests better.
Frequently Asked Questions
What is the fastest growing tree for Delaware?
Red maple and river birch grow 2 to 3 feet per year. They provide quick shade and adapt to various soils.
Can I plant fruit trees in Delaware?
Yes. Apple, pear, and peach trees grow well. Choose disease-resistant varieties. Plant in full sun with good drainage.
What trees should I avoid planting in Delaware?
Avoid invasive species like Bradford pear, Norway maple, and tree of heaven. Also avoid salt-sensitive trees near the coast.
How close to my house can I plant a tree?
Small trees (under 30 feet) can be 10 to 15 feet from the house. Large trees need 20 to 30 feet of clearance. Consider root spread and branch reach.
Do I need a permit to plant a tree in Delaware?
Most residential yards do not require permits. Check with your homeowners association or local municipality for rules about street trees.
Final Tips For Success
Start with a site assessment. Know your soil, sun, and space. Choose trees that match your conditions. Plant correctly and water consistently for the first two years.
Delaware’s climate offers a long growing season for many trees. With the right choices, your landscape can thrive for decades. Visit a local nursery for advice on cultivars that perform best in your area.
Remember that trees are an investment. They increase property value, reduce energy costs, and improve air quality. Take time to select the best trees to plant in delaware for your specific yard.
A well-chosen tree will provide shade, beauty, and habitat for years to come. Start with one tree this season and build your landscape over time.