Eastern Hemlock is a tree, a long-term addition to the landscape. It's hardy across USDA zones 4 through 10.
Eastern Hemlock — the short answer
Eastern Hemlock: grown in zones 4–10, shade, pH 4.2–5.7.
- USDA zones
- 4–10
- Hardy to zone 4 — USDA PLANTS Database (-33 °F, converted).
- Soil pH
- 4.2–5.7
- USDA PLANTS
- Sun
- Shade
- Growable Ground Plant Database
Plant data: Growable Ground Plant Database, compiled from FAO ECOCROP, USDA PLANTS and university Extension sources — each tile names its own row's source, because per-field provenance varies.
Score Eastern Hemlock on your exact land.
Zone averages can't see the slope, soil, frost, and sun that decide whether eastern hemlock actually takes — and those shift from one yard to the next. Enter your address and we'll score eastern hemlock against your land's real conditions.
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See Eastern Hemlock
What Eastern Hemlock is
Eastern Hemlock grows as a perennial and reaches around 70 feet at maturity. It blooms yellow in mid spring.
How to grow Eastern Hemlock
Eastern Hemlock grows in USDA zones 4 through 10. Eastern Hemlock does best in shade — at least 2 hours of direct sun a day — and soil from pH 4.2 to 5.7.
USDA Zones
4-10
Hardy to zone 4: USDA PLANTS Database lists -33 °F, converted to zone 4a, checked Oct 2026. Ceiling: our plant database.
Soil pH
4.2 - 5.7
USDA PLANTS
Sun
Shade
Growable Ground plant catalog
Drainage
Data pending
Cold Hardiness
-33°F
The coldest temperature this plant is documented to survive.
USDA PLANTS
Mature Height
70 ft
Growable Ground plant catalog
Plant it right
Set eastern hemlock in shade with well-drained soil.
Match the soil
Eastern Hemlock prefers pH 4.2 to 5.7 (USDA PLANTS). A quick soil test from your local Extension lab tells you whether to add lime or sulfur to land in band.
Water steadily
Keep the root zone evenly moist through establishment. Match watering to the plant's drainage preference and your local rainfall.
Shape it while it is young
Prune eastern hemlock only to remove dead, damaged or crossing branches while it is young; it is grown for its form, not a harvest, so little more is needed once it settles in.
Where Eastern Hemlock thrives
Eastern Hemlock is hardy across USDA zones 4 through 10. Zone is only the starting point, though: the soil pH, drainage, and frost dates on your specific land decide how well it actually does.
A USDA zone is a 10°F band of average annual extreme winter minimum, so zones 4–10 spans average winter lows from -30°F to 40°F (USDA PHZM 2023). Across the 50 states and DC, that band covers 38 outright and splits 13 more down the middle — and which side of that line your land sits on changes the answer.
Zones 4–10·Where Eastern Hemlock growsOpen map →
This map is derived from the USDA ARS / PRISM Plant Hardiness Zone Map (2023) and is not the official USDA Plant Hardiness Zone Map.
Where Eastern Hemlock stands, state by state
Eastern Hemlock is rated for zones 4–10 — a cold floor USDA puts at -30 to -20°F. Across the 50 states and DC, 38 sit fully inside that band, the line runs through 13 more, and 0 sit outside it — and inside every split state, the same line runs on at county grain.
Fully inside zones 4–10
38 states
3 of 38 shown
State zone extents: USDA Plant Hardiness Zone Map (PHZM) 2023. A zone is a 10°F band of average annual extreme minimum temperature, so a state that splits the band contains the boundary — its own page draws the county line, and a parcel report resolves which side your land sits on.
What grows around Eastern Hemlock
Growing guides for eastern hemlock
Good to know
Good news for pet owners — eastern hemlock isn't known to be toxic to dogs or cats. (Source: ASPCA.)
Eastern Hemlock isn't classified as a notable pollinator plant in our data — pair it with high-value bloomers nearby to feed bees.
Your land is one point inside Eastern Hemlock's range
This page resolves to the species. Your state page draws the county line, and a report reads the parcel — the soil pH, drainage, sun, and frost dates on your exact ground, which no species average can see.
See if Eastern Hemlock will thrive on your land
Zone averages are a start. Your exact soil pH, drainage, sun exposure, and frost dates shape whether eastern hemlock actually takes — we score it against the real conditions at your address.
Three things about your exact spot that zone averages miss:
We read public map data for this spot — soil, climate, flood, and parcel records. How we handle your address.
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How we know this about Eastern Hemlock
The figures above are cited per row, not per site: the pH band names this plant’s own source column, the three temperature figures each carry their own, and days-to-maturity cites the publication that actually lists it. All of it comes from the Growable Ground Plant Database — a compilation over FAO ECOCROP, USDA PLANTS, and university Extension sources, published openly with per-field provenance.
Grounded inUSDA PLANTS Database•ASPCA
Frequently asked questions
Can I grow Eastern Hemlock in my zone?
Eastern Hemlock grows in USDA hardiness zones 4 through 10 (Hardy to zone 4: USDA PLANTS Database lists -33 °F, converted to zone 4a, checked Oct 2026. Ceiling: our plant database.). Zone is one factor — soil pH, drainage, and frost dates on your specific parcel also shape whether it takes.
When should you plant Eastern Hemlock?
Set eastern hemlock out in early spring or fall while it's dormant, so the roots establish before the heat of summer. Your local last-frost date — which a Growable Ground report pulls for your exact address — sets the precise window.
How much sun does Eastern Hemlock need?
Eastern Hemlock is shade-tolerant — it gets by on as little as 2 hours of direct sun, so it earns a place most vegetables can't use. A north-facing strip or the ground under a leafy canopy is right where it belongs. A Growable Ground report shows which corners of your land stay shaded through the day, turning those dim spots into planting spots.
What soil does Eastern Hemlock need?
Eastern Hemlock prefers soil pH 4.2 to 5.7 (USDA PLANTS). Your report scores your parcel's actual soil against that using USDA SSURGO data.
Does Eastern Hemlock attract pollinators?
Eastern Hemlock isn't classified as a notable pollinator plant in our data. Pairing it with high-value bloomers nearby keeps bees and butterflies fed.
Is Eastern Hemlock safe for pets?
Eastern Hemlock is not known to be toxic to dogs or cats based on available data. Always supervise pets around new plantings. (Source: ASPCA.)
Keep exploring Eastern Hemlock
Eastern Hemlock state by state
Every state eastern hemlock's zone reaches — 25 link straight to that state's eastern hemlock growing page; the rest open the state's full growing guide.