Which trees are most common in Andover, MA?
Andover sits in the transition hardwood forest of eastern Massachusetts, where northern hardwoods, oaks and white pine mix. Around homes, you’ll also find generations of planted shade and ornamental trees. The most common trees in Andover yards and woodlands are maples (red, sugar and Norway), oaks (red and white), eastern white pine, eastern hemlock, American beech, birches and ash, with black cherry, shagbark hickory and planted ornamentals mixed in.
Each has its own strengths and weaknesses. Here’s a quick guide to identifying them and caring for them well.
Maples
Red maple
Red maple is one of the most widespread native trees in the region. It has red flowers in early spring, red leaf stems and often brilliant red fall color. It tolerates wet soil, which is why it’s common near ponds and streams. Thin bark is easily damaged by mowers and string trimmers, and older trees can develop weak forks, so structural pruning matters.
Sugar maple
Sugar maple is the classic New England fall-color tree, with orange and yellow leaves. It prefers deep, well-drained soil and suffers near salted roads and on compacted lots. Watch for decline from road salt, root damage and drought.
Norway maple
Norway maple was widely planted as a street tree in the mid-1900s and is common on older streets. It’s now on the Massachusetts prohibited plant list as invasive. Mature Norway maples often have dense, heavy crowns, girdling roots and weak forks, so they benefit from inspection, pruning and sometimes cabling.
Oaks
Northern red oak
Red oak is a large, fast-growing native oak with pointed, bristle-tipped leaf lobes. It’s a mainstay of Andover’s woods and yards. It’s also the oak most vulnerable to oak wilt, so prune it only during the dormant season. Spongy moth caterpillars can defoliate red oaks in outbreak years.
White oak
White oak has rounded leaf lobes and pale, scaly bark. It’s long-lived, strong and more resistant to oak wilt than red oak. Big, open-grown white oaks can have heavy horizontal limbs that benefit from end-weight reduction.
Oaks: winter pruning onlyPrune all oaks from about November through March. Our oak wilt guide explains why.
Conifers
Eastern white pine
White pine is the tallest tree in many Andover woodlands, with soft needles in bundles of five. It grows fast and tall, often with most of its crown high up. Common issues include needle cast diseases after wet springs, weevil damage to the leader, and storm breakage of tall, narrow crowns at woodland edges.
Eastern hemlock
Hemlock is a graceful, shade-tolerant evergreen with short, flat needles that have two white lines underneath. It’s threatened across New England by hemlock woolly adelgid, a tiny insect that shows up as white woolly tufts at the base of needles. Early monitoring and treatment can protect valuable hemlocks.
American beech
American beech has smooth, silver-gray bark and pointed, toothed leaves that often hang on through winter. It faces two serious threats: long-established beech bark disease, and the newer beech leaf disease, which is spreading in Massachusetts. See our beech leaf disease guide for what to look for.
Birches
Black birch, gray birch and paper birch are all found locally, along with planted river birch. Birches are relatively short-lived and sensitive to heat and drought stress. Paper and European white birches are especially prone to the bronze birch borer when stressed. Good watering and mulching help.
Ash
White ash and green ash were once common in Andover’s woodlands and along streets. Emerald ash borer has killed many of them, and untreated ash should be considered at risk. Healthy, valuable ash can be protected with treatment; declining ash near homes should be removed before it becomes brittle. Our emerald ash borer guide covers the decision.
Other common trees
- Black cherry: native, fast-growing, with dark, flaky bark; prone to black knot and storm breakage.
- Shagbark hickory: distinctive peeling bark and strong wood; long-lived.
- Crabapples and flowering cherries: popular ornamentals; crabapples face apple scab and fire blight.
- Flowering dogwood: native understory tree; susceptible to dogwood anthracnose.
- American elm: surviving elms are rare and valuable; protect them from Dutch elm disease.
Quick reference: care by tree
| Tree | Best pruning time | Main threats |
|---|---|---|
| Red maple | Late winter or early summer | Weak forks, mower damage |
| Sugar maple | Late winter or early summer | Salt, compaction, drought |
| Norway maple | Late winter | Girdling roots, weak forks, invasive spread |
| Red oak | November–March only | Oak wilt, spongy moth |
| White oak | November–March only | Heavy limbs, spongy moth |
| White pine | Late spring (candles) | Needle cast, storm breakage |
| Hemlock | Early spring | Hemlock woolly adelgid |
| American beech | Late winter | Beech leaf disease, beech bark disease |
| Birch | Early summer (avoid late-winter bleeding) | Bronze birch borer, drought |
| Ash | Late winter | Emerald ash borer |
How have Andover’s trees changed over time?
The town’s tree mix tells a story. American elms once lined many New England streets until Dutch elm disease killed most of them in the twentieth century; Norway maples were planted widely afterward as replacements, and many still stand. Ash became common in woods and along roads, and is now declining from emerald ash borer. Hemlocks face woolly adelgid, and beeches face beech leaf disease. Each wave of loss is a reminder that planting a variety of species is the best protection for the future canopy.
Today’s new plantings, from swamp white oak and tupelo to disease-resistant elms, are the start of the next chapter. Choosing them with care, and caring for the older trees still standing, keeps Andover’s streets and yards shaded for the next generation.
For homeowners, the practical lesson is to know which of these species you have. A yard with several ash, a large beech or a row of hemlocks deserves closer attention than one full of oaks and maples, because those species carry the biggest current risks.
How can you keep local trees healthy?
A few habits help nearly every tree on this list:
- Mulch, don’t mow, near the trunk. A wide, flat mulch ring protects bark and roots.
- Water during dry spells, especially young trees and shallow-rooted species.
- Protect roots during construction. Root damage is the hidden cause of many declines.
- Prune at the right time for the species; see our pruning calendar.
- Watch for change. Thinning crowns, early fall color and leaf spots are early warnings.
A plant health care program puts these steps on a schedule, and tree trimming keeps structure strong.
Call and describe it, and we’ll help identify it and explain what it needs.
Andover tree FAQs
What is the most common tree in Andover?
In woodlands, red maple, oaks and white pine are among the most common. In older neighborhoods, maples and oaks dominate.
Is Norway maple bad for my yard?
It’s invasive in Massachusetts and casts heavy shade that suppresses other plants. Existing trees can be kept with care, but don’t plant new ones.
How do I tell a red oak from a white oak?
Red oak leaves have pointed, bristle-tipped lobes; white oak leaves have rounded lobes.
Are hemlocks still worth keeping?
Yes, if they’re healthy. Monitor for hemlock woolly adelgid and treat early to protect them.
Which local trees are the strongest in storms?
Oaks and hickories generally have strong wood. Silver maple, Callery pear and willows are more prone to breakage.
Understanding these trees is the foundation of good tree pruning across Andover and tree care, whether you have one maple or a whole wooded lot.
