Which trees can you tap for syrup?
| Tree | For syrup | Sap sugar | Sap : syrup |
|---|---|---|---|
| Sugar mapleAcer saccharum | Best for syrup | 2–2.5% | 35–43 : 1 |
| Black mapleAcer nigrum | Best for syrup | 2–2.5% | 35–43 : 1 |
| Red mapleAcer rubrum | Good to tap | 1.5–2% | 43–58 : 1 |
| Silver mapleAcer saccharinum | Fair, lower yield | varies | varies |
| Norway mapleAcer platanoides | Fair, lower yield | 2.2–2.8% | 31–39 : 1 |
| BoxelderAcer negundo | Fair, lower yield | 2.2–2.8% | 31–39 : 1 |
| Black walnutJuglans nigra | Fair, lower yield | 2–3.5% | 25–43 : 1 |
| Paper birchBetula papyrifera | Not recommended | 0.5–1.5% | 110–175 : 1 |
Ratios use UVM's revised Rule of 86 over each tree's typical sugar; birch is the published figure. See the full ratio chart.
The one-second test
Look at how the twigs pair up.
Maples, and boxelder, have opposite branching: buds and twigs grow in pairs, directly across from each other. Oaks, birches and walnuts are alternate: they zig-zag up the branch. If the twigs alternate, it isn't a maple.
Best for syrupSugar maple
The gold standard — if you've got one, tap it first.
Best for syrupBlack maple
Tap it exactly like sugar maple — same sweet sap, same long season.
Good to tapRed maple
A solid second choice — good syrup, just a shorter and usually less sweet season.
Fair, lower yieldSilver maple
Tappable, but usually the fourth pick — first to bud and often lowest in sugar.
Fair, lower yieldNorway maple
Tappable and surprisingly sweet, but stingy with sap — and an invasive you shouldn't plant.
Fair, lower yieldBoxelder
Yes, it's a real maple and its sap can be sweet — just expect less of it and a darker, molasses-like syrup.
Fair, lower yieldBlack walnut
Sweet sap and nutty, maple-like syrup — but only a trickle compared with a maple, so treat it as a fun side project.
Not recommendedPaper birch
You can tap it, but it's a different sport — around 100+ gallons of sap per gallon of syrup, after maple season ends. Save it for year two.
Did I just tap an oak?
Wait, did I just tap an oak?
- It's an easy mix-up: big gray-barked oaks grow right alongside sugar maples, and “red oak” and “red maple” even share a first name.
- The fastest test is branching. Maples (along with ashes and dogwoods) are opposite — buds and twigs come in matched pairs. Oaks are alternate, with buds staggered up the twig.
- Check a twig tip: oaks carry a cluster of several buds at the very end. A maple has one tip bud flanked by a single pair.
- Dead brown leaves rattling on the branches in February are a classic oak (and beech) habit, especially on young trees and lower limbs — a clue, not proof, so confirm with the branching test.
- Bark clues: northern red oak has wide, flat-topped ridges separated by shallow furrows (like ski tracks), often reddish in the cracks; white oak is ashy gray and scaly to blocky. Sugar maple's plates curl outward at one edge.
- Acorns underneath settle it. Oaks aren't on the syrup-tree lists — the producers' manual covers maples, and Cornell's alternative-syrup research covers birch and walnut — so if you tapped one, pull the spile and go find a maple.
Sources · 7
- 1.Mind Your B's to Identify Winter Trees · University of New Hampshire Extension
- 2.Bark, Buds and Beyond: A Guide to Identifying Winter Trees · New York State Parks, Recreation and Historic Preservation
- 3.Northern red oak (Quercus rubra) — Virginia Tech Dendrology Fact Sheet · Virginia Tech Dendrology (Dept. of Forest Resources & Environmental Conservation)
- 4.White oak (Quercus alba) — Virginia Tech Dendrology Fact Sheet · Virginia Tech Dendrology (Dept. of Forest Resources & Environmental Conservation)
- 5.The stubborn beauty of oak leaves: marcescence explained · University of Illinois Extension
Show 2 moreShow fewer
- 6.North American Maple Syrup Producers Manual, 2nd ed. (Bulletin 856) — Ch. 3 “The Maple Resource” and Ch. 7 “Rule of 86” · Ohio State University Extension with the North American Maple Syrup Council
- 7.Tapping Walnut Trees for a Novel and Delicious Syrup (M. Farrell) · Cornell Small Farms Program
LuckySap · free on iPhone & Android
Log every run. Know your season.
LuckySap is the maple syrup tracker for iPhone and Android: a sap-flow outlook for your trees, a quick log for every collection and boil, and season stats you can compare year to year.
