Generally — Most Areas
loblolly pine (zones 6-9) suits most of Massachusetts (5a-7b) — zones 6-7 are in range, and the rest of the state is the exception.
Loblolly Pine in Massachusetts — the short answer
Loblolly Pine in Massachusetts: hardy in zones 6–9, full sun, against a state median of ~206 frost-free days.
- Plant zones
- 6-9
- Manual horticultural correction (source not retained); NC State Extension and Missouri Botanical Garden, with the remaining rows from other published sources or Growable Ground compilation
- Massachusetts zones
- 5a-7b
- USDA PHZM 2023
- Frost window
- Apr 4 - Apr 14 – Oct 24 - Nov 14
- NOAA RCC ACIS 1991-2020, 28°F
- Shortest county season
- 171 days
- NOAA Regional Climate Centers ACIS, 1991-2020, county 28°F killing freeze
Plant data: Growable Ground Plant Database, compiled from FAO ECOCROP, USDA PLANTS and university Extension sources — per-field provenance varies and is published with the dataset.
Your yard isn't the whole zone.
Massachusetts spans zones 5a-7b, but your yard sits in exactly one — and slope, tree cover, and cold-air pockets nudge it further. Enter your address and we'll score loblolly pine against your parcel's actual hardiness, soil, and sun.
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Massachusetts is not one climate
Massachusetts’s winter-low ladder runs across 14 counties, from zone 5.5 in Berkshire County to zone 7.5 in Nantucket County. That is 20°F between the two counties’ average coldest night — the difference between loblolly pine overwintering in the ground and coming under cover.
The middle half of 14 counties runs 6–7 zones, with a median of 6.5 zones — a 2-zone span end to end.
Measured across 14 Massachusetts counties. USDA PHZM 2023, per county. Quartiles are order statistics — every figure shown is a value a real county recorded, not an interpolation. Your own site sits somewhere inside this range; a parcel report resolves where.
Where in Massachusetts Fits Best
Loblolly Pine is rated for zones 6–9 — a cold floor USDA puts at -10 to 0°F. Against Massachusetts’s 14 counties that band holds in 13 of them, and the line runs at Franklin County (zone 6a), the coldest county still inside it.
Inside zones 6–9
13 counties
- Hampshire County · zone 6a
- Worcester County · zone 6a
- Essex County · zone 6b
3 of 13 shown
Below the zone 6 floor
1 county
- Berkshire County · zone 5b
Winter cold is the limit here — the same plant works in a container that comes under cover.
County hardiness zones: USDA Plant Hardiness Zone Map (PHZM) 2023, per county. A zone is a 10°F band of average annual extreme minimum temperature, so the floor above is the band the plant's rating denotes, not a single measured kill point. Slope, shelter and cold-air drainage routinely move a site half a zone either way from its county figure — which is the part only your address resolves.
Even within Massachusetts's zones 5a-7b, county microclimates differ enough to change what thrives. These counties carry the closest zone match for loblolly pine (USDA PHZM 2023):
Zone Comparison
Loblolly Pine Needs
- USDA Zones: 6-9
- Frost-Free Days: 300+
- Sun: Full Sun
- Mature size: 90 ft tall
- Drought tolerance: Low
Massachusetts Has
- USDA Zones: 5a-7b
- Last Hard Freeze (28°F): Apr 4 - Apr 14
- First Hard Freeze (28°F): Oct 24 - Nov 14
- Annual Rainfall: 42-50 inches
- Common Soils: Glacial till, Sandy loam, Rocky loam
Plant Zone Range (zones 6-9)
Preferred Soil pH
Plant data: Growable Ground Plant Database, compiled from FAO ECOCROP, USDA PLANTS, and university Extension sources — per-field provenance varies and is published with the dataset. State data: USDA ARS PHZM 2023, NOAA Climate Normals, NRCS SSURGO.
When to Plant Loblolly Pine in Massachusetts
The frost window
Across Massachusetts, the last spring hard freeze (28°F) clears between Apr 4 and Apr 14, and the first fall hard freeze lands between Oct 24 and Nov 14 (NOAA Regional Climate Centers ACIS, 1991-2020). Counting from the latest last freeze to the earliest first freeze, that's a 193-day window you can count on — up to 224 days on a mild site in a kind year. That marks the hard freeze, not the last light frost, so tender transplants usually wait another 2-3 weeks.
Winter standing
Massachusetts runs as cold as USDA zone 5, and no sourced winter-hardiness floor is on record for loblolly pine, so this page does not state whether it overwinters here — and gives no fall establishment date on the strength of a guess. Whether loblolly pine is a permanent planting or a replant-every-spring crop for you turns on your own zone within Massachusetts; check its hardiness range against that before treating it as long-lived ground.
Frost window: NOAA Climate Normals 1991-2020. Plant timing fields: Growable Ground Plant Database — frost-free days from FAO ECOCROP, days to harvest from university Extension production guides, and growing-degree-day and chill-hour minimums that are compilation estimates rather than published figures. Your site's own frost dates can run earlier or later than the state range — a parcel report pins them down.
Growing Season Fit
The zone check says loblolly pine survives winter in part of Massachusetts, not across all of it. Whether the season is long enough — and warm enough — is a different question.
Frost-free days
Loblolly Pine wants 300+ frost-free days; a typical Massachusetts site sees ~206 (NOAA Regional Climate Centers ACIS, 1991-2020) — 94 days short of what it needs. A typical Massachusetts season does not carry this crop to harvest outdoors, and a gap that size is not one an earlier sowing date or a faster cultivar closes; growing it here means growing it under cover.
Chill hours
Loblolly Pine requires ~200 chill hours (32-45°F dormancy window). Massachusetts typically banks ~2500 chill hours per winter (from PRISM 1991-2020 climate normals), which keeps this plant on track.
GDD and chill-hour figures are computed from PRISM 1991-2020 monthly climate normals; frost-free days from NOAA Regional Climate Centers ACIS, 1991-2020. Each is the state median across its counties (P25/P75 span the within-state spread). Hardiness-zone range is USDA PHZM 2023.
Soil + Drainage Fit
Loblolly Pine likes near-neutral soil (pH 4-6.5). That's the common-ground band across Massachusetts's glacial till and sandy loam — a soil test confirms it for your site. It will grow across that whole span, but it does best between pH 4.5 and 5.5 — worth knowing before you decide whether a Massachusetts soil test result is a problem or just a number. Drainage matters: this plant wants poorly (saturated >50% of year), well (dry spells). If your Massachusetts site is heavier clay or sits in a low spot, raised beds or amendment with compost solve it.
Plant pH requirements: FAO ECOCROP and USDA PLANTS, with the remaining rows from other published sources or Growable Ground compilation. Drainage: FAO ECOCROP, with the remaining rows from other published sources or Growable Ground compilation. Massachusetts soil profile from USDA NRCS SSURGO. Site-specific verification: a 30-minute soil test from your local Extension lab.
What Else to Consider for Loblolly Pine in Massachusetts
Zone compatibility tells you about winter cold survival — but Massachusetts growers also need to think about:
Short growing season (120-180 frost-free days) limits warm-season crops
Rocky glacial soils require amendment in many areas
Late spring frosts can damage early plantings through mid-May
Deer pressure is significant in suburban and rural areas
What to actually do about these — and the constraints that apply to every Massachusetts grower, not just loblolly pine — is covered on the Massachusetts growing guide.
Timing shifts within Massachusetts
Loblolly Pine needs about 300 days of frost-free season to complete its cycle. No Massachusetts county gives it that outdoors: even Nantucket County, the state’s longest season at 246 frost-free days, falls 54 days short — so it needs transplants, a short-season variety, or covered growing.
Across Massachusetts’s 14 counties the frost-free season runs from 171 days in Berkshire County to 246 days in Nantucket County — a spread of 75 days, which is why a single statewide planting date misleads. The median Massachusetts county sees 206 frost-free days, which is 94 days short of what loblolly pine needs — so on a typical Massachusetts parcel this is a transplant-or-protect crop, not a direct-sow one.
County last-freeze dates and frost-free day counts: NOAA Regional Climate Centers ACIS (1991-2020), county 28°F freeze (earlier than the folk 32°F "last frost"). Loblolly Pine's 300-day requirement: USDA PLANTS / Growable Ground plant database (minimum frost-free days). A parcel report resolves your address's own frost dates.
Massachusetts Cooperative Extension
For Massachusetts-specific cultivar recommendations, planting calendars, and pest pressure for loblolly pine, the canonical source is UMass Extension. Their fact sheets carry the local trial data we can't generalize across 50 states.
Is Loblolly Pine native to Massachusetts?
Loblolly Pine is native to parts of the Lower 48, but the USDA PLANTS Database (accessed 2026-07-01) does not document a native range in Massachusetts. It can still earn a place in a Massachusetts garden — the zone comparison above tells you whether it will thrive.
Looking for plants that belong here? The Massachusetts growing guide lists USDA-documented natives for the state.
Native-range data: USDA PLANTS Database state-distribution records, accessed 2026-07-01.
Common Questions About Growing Loblolly Pine in Massachusetts
When can I plant Loblolly Pine in Massachusetts?
Massachusetts's last spring hard freeze (28°F) clears between Apr 4 and Apr 14, and the first fall hard freeze lands between Oct 24 and Nov 14 (NOAA Regional Climate Centers ACIS, 1991-2020). No sourced winter-hardiness floor is on record for Loblolly Pine, so this page does not state whether it overwinters in Massachusetts and publishes no fall establishment date for it — check its hardiness range against your own zone before treating it as a permanent planting.
What hardiness zone is Loblolly Pine grown in across Massachusetts?
Massachusetts spans USDA hardiness zones 5a-7b (USDA ARS PHZM 2023). Loblolly Pine carries a range of zones 6-9, so the overlap zones are where outdoor growing is most reliable.
How many frost-free days does a typical Massachusetts site have?
A typical Massachusetts site sees ~206 frost-free days per year (derived from NOAA Regional Climate Centers ACIS, 1991-2020). Loblolly Pine needs 300+ frost-free days, so check whether your local microclimate runs above or below the state average before settling on a planting date.
Is Loblolly Pine native to Massachusetts?
Loblolly Pine is native to parts of the Lower 48, but the USDA PLANTS Database (accessed 2026-07-01) does not document a native range in Massachusetts. It can still earn a place in a Massachusetts garden — the zone comparison above tells you whether it will thrive.
How should I amend the soil for Loblolly Pine in Massachusetts?
Loblolly Pine prefers pH 4-6.5 and poorly (saturated >50% of year), well (dry spells) drainage (FAO ECOCROP). That sits in the common-ground band across Massachusetts soils — a 30-minute soil test from a local Extension lab confirms it for your specific site.
Will Loblolly Pine actually grow on my specific land in Massachusetts?
State-level zone + climate data is a sketch. A Growable Ground parcel report scores loblolly pine against your address's exact soil pH, drainage, sun, and frost-date data drawn from USDA SSURGO, NOAA, and PRISM — not state averages.
Check your specific parcel in Massachusetts
State-level data is a sketch. Your Growable Ground report scores loblolly pine against your parcel's exact soil, sun, drainage, and frost data — not zone averages.
Three things about your lot that Massachusetts loblolly pine averages can't show:
We read public map data around Massachusetts — soil, climate, flood, and parcel records. How we handle your address.
25+ data sources read at your address, not the Massachusetts loblolly pine average
Explore More
Growing guides for loblolly pine
Explore Massachusetts county by county
Massachusetts carries 14 counties with their own USDA zone — a sample of the growing pages for loblolly pine there:
Where else loblolly pine grows
Loblolly Pine's zone band crosses state lines — these are the states closest to Massachusetts in winter climate where it also has a page, plus the far ends of its range. Each one re-answers the question with that state's own record.
More to grow in Massachusetts
Massachusetts has a growing page for 893 plants — a rotating sample of the rest of the shelf.
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