Want to bring diversity to your landscape? Check out this list of impressive Trees that Start with O to elevate your gardening game!
While Oaks are the most recognized among Trees That Start with O, there is a broader list worth exploring. Explore this guide to get insights into these lesser-known species.
Read the Trees that Start with A here
Trees That Start With O
Botanical Name: Fagus orientalis
Indigenous to Eurasia, the Oriental Beech offers smooth, silver-gray bark and lush green leaves. Known for its shade tolerance, it’s often used in forest underplantings and offers great autumnal foliage.
Botanical Name: Olea europaea
The olive tree is popular for its silver-green leaves and slender branches. Its graceful appearance makes it a cherished addition to this list of trees that start with O.
Discover the List of Trees that Start with B here
Botanical Name: Malus fusca
The Oregon Crabapple is a deciduous tree with white blossoms that appear in spring. This Pacific Northwest tree bears small, tart apples mostly consumed by wildlife.
4. Osage Orange Tree
Botanical Name: Maclura pomifera
The osage orange tree stands out with its distinctive, bumpy fruit. Historically used for creating hedgerows, it now adds a touch of intrigue to gardens, showcasing nature’s quirky side.
Find Out the List of Trees that Start with C here
Botanical Name: Aucoumea klaineana
Indigenous to Central Africa, the Okoumé tree is harvested for its timber, often used in plywood. The tree grows in swampy or flooded forests and can reach significant heights.
6. Overcup Oak Tree
Botanical Name: Quercus lyrata
What sets the overcup oak apart is its acorns, creating a distinctive visual feature. This oak variety adds intrigue and character to wooded areas.
Explore the List of Trees that Start with D here
7. Oyama Magnolia
Botanical Name: Magnolia sieboldii
Magnolia sieboldii features large, fragrant white blooms with crimson stamens. This wind-tolerant tree brings elegance and sophistication to any garden.
8. Oregon Ash
Botanical Name: Fraxinus latifolia
The Oregon ash showcases compound leaves and stunning fall foliage, providing visual appeal. Among the trees that start with O, it reaches a height of up to 40-80 ft with yellowish male and greenish female blooms.
Discover the Trees that Start with E here
9. Oriental Hornbeam
Botanical Name: Carpinus orientalis
With its unusual serrated leaves, the oriental hornbeam tree produces ornamental catkins in the spring. This small to medium-sized tree can grow up to 20-25 feet tall.
10. Oriental Spruce
Botanical Name: Picea orientalis
This dense evergreen conifer boasts dark green needles and strawberry-shaped cones. Oriental spruce is popular among gardeners for its year-round greenery and drought-tolerant nature.
Check Out the Trees that Start with F here
11. Oriental Sweetgum
Botanical Name: Liquidambar orientalis
Native to Turkey, the oriental sweetgum offers striking five-lobed leaves and fragrant resin. This broadleaf deciduous tree produces monoecious flowers in a yellow-green hue.
12. Osage Plum Tree
Botanical Name: Prunus Americana
Prunus Americana is a deciduous tree native to North America. This versatile species is famous for its fragrant white flowers and tart, edible fruits. It’s often used in landscaping for ornamental purposes.
Learn About the Trees that Start with G here
13. Olive Oleaster
Botanical Name: Elaeagnus angustifolia
Olive oleaster features silvery leaves, yellow fruits, and showy flowers. Often used for ornamental purposes, this tree is also valued for its drought-resistant qualities.
14. Oregon White Oak
Botanical Name: Quercus garryana
Quercus garryana is a deciduous tree species that can grow up to 40-90 ft with a broad, rounded crown. The tree features lobed leaves and acorns that serve as a food source for local wildlife.
15. Old Man Banksia
Botanical Name: Banksia serrata
Endemic to Australia, the Old Man Banksia is an evergreen tree with leathery, serrated leaves and large, woody seed cones. It’s used for timber and ornamental purposes.
Read the Best Trees that Start with the Letter H here
16. Ozark Chinquapin
Botanical Name: Castanea ozarkensis
This American native was once widespread across the Ozark Mountains but is now considered endangered due to chestnut blight. Its edible nuts are covered by a spiky husk and are a valuable food source for local wildlife.
17. Ogeechee Lime Tree
Botanical Name: Nyssa ogeche
Popular for its glossy green leaves and small, tart fruits, the Nyssa ogeche tree is a botanical gem. It inhabits wetland habitats and attracts wildlife.
Check Out the Trees that Start with I here
18. Ohio Buckeye Tree
Botanical Name: Aesculus glabra
The Ohio buckeye tree stands out with its distinctive palmate leaves and interesting buckeye nuts. It’s a native species that adds character to woodland areas.
19. Oregon Myrtle
Botanical Name: Umbellularia californica
Also known as the California bay laurel, this tree produces aromatic leaves and clusters of small, yellowish flowers. This tree is valued for its timber, making it suitable for various applications, including woodworking.
Botanical Name: Podocarpus falcatus
Native to South Africa, the Outeniqua yellowwood is a large, evergreen tree with a straight trunk and lush, dark-green foliage. Often used in reforestation projects, this tree is prized for durable timber in furniture and construction.
Explore the Trees that Start with J here