Sugar Maple

Acer saccharumUSDA 3a–8a

Updated 2026-10-18 · Species & health

Mature height60–80 ft
Mature DBHNot published
Canopy spread35–50 ft
Growth rateModerate
Firewood23.7–25.5 MBTU / cord

Woodcut of a mature maple tree — A sugar maple in full leaf: dense, upright-oval, and the first tree on a street to show salt damage.

Sugar maple is the benchmark shade tree of the north and the least forgiving of urban conditions on this list. It resents salt, compaction and heat, which is why the same species thrives in a back garden and struggles twenty feet away in a street verge.

It bleeds — so the window moves

Maple runs sap heavily in late winter. Cutting at bud break produces dramatic bleeding that is largely cosmetic but entirely avoidable: cut in deep dormancy, or wait until midsummer after the flush has hardened. That is why the maple row in the pruning calendar has two separate blocks rather than one.

Sound

Unlike oak and elm, the maple timing rule is about sap and appearance, not disease. Getting it wrong is untidy, not dangerous.

The three urban stresses, in order

Stress	What you see	What helps
De-icing salt	Marginal leaf scorch, dieback on the road side	Mulch, flush irrigation in spring, distance
Compaction	Thin canopy, early autumn colour, surface roots	Wide mulch ring, no traffic over the root zone
Heat and drought	Scorch between the veins, early leaf drop	Deep infrequent watering, mulch

Notice that mulch appears in all three rows. It is the highest-value intervention available for a stressed maple, and it is cheaper than anything injected — the argument is laid out in deep root feeding versus the surface. Size the ring in the mulch calculator.

Structure: watch the forks

Maples form codominant unions readily, and a young one corrected with secateurs is a two-second job that never becomes a rigging job. If a mature tree already has a tight fork with included bark, that is a cabling conversation rather than a pruning one.

On the woodpile

Sugar maple sits just below oak on the heat table at 23.7 to 25.5 million BTU per cord for hard maple across the Illinois and Utah State extension tables and seasons in about a year rather than two — a better practical combination than oak for most people. Silver maple is a different tree entirely and burns considerably faster; the table in the BTU chart lists both.

Sources

UF/IFAS Extension ST051 — Acer saccharum, sugar maple: 60 to 80 ft tall at maturity in landscape plantings, spread 35–50 ft, zones 3A–8A, moderate growth, no salt toleranceretrieved 2026-10-18
University of Illinois Extension — Firewood: burning safety (million BTU per cord)retrieved 2026-10-18
Utah State University Extension — Wood Heating, Table 1 (heat per cord of dry wood)retrieved 2026-10-18
BLS OEWS May 2025 · 37-3013 · hourly mean $26.91 (the crew rate behind maple pruning)retrieved 2026-09-04