Yes — Strong Match
Atlantic white cedar (zones 4-8) covers every zone Maryland contains (5b-8a), so hardiness is not what limits it anywhere in the state.
Your yard isn't the whole zone.
Maryland spans zones 5b-8a, 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 atlantic white cedar against your parcel's actual hardiness, soil, and sun.
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Zone Comparison
Atlantic White Cedar Needs
- USDA Zones: 4-8
- Frost-Free Days: 140+
- Sun: Part Sun
- Mature size: 50 ft tall
- Drought tolerance: Low
Maryland Has
- USDA Zones: 5b-8a
- Last Hard Freeze (28°F): Mar 18 - Mar 29
- First Hard Freeze (28°F): Nov 11 - Nov 27
- Annual Rainfall: 36-48 inches
- Common Soils: Silt loam, Clay, Sandy loam (Eastern Shore)
Plant Zone Range (zones 4-8)
Preferred Soil pH
Plant data: USDA PLANTS Database / Growable Ground plant catalog. State data: USDA ARS PHZM 2023, NOAA Climate Normals, NRCS SSURGO.
When to Plant Atlantic White Cedar in Maryland
The frost window
Across Maryland, the last spring hard freeze (28°F) clears between Mar 18 and Mar 29, and the first fall hard freeze lands between Nov 11 and Nov 27 (NOAA Regional Climate Centers ACIS, 1991-2020). Counting from the latest last freeze to the earliest first freeze, that's a 227-day window you can count on — up to 254 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
Maryland runs as cold as USDA zone 5, and no sourced winter-hardiness floor is on record for atlantic white cedar, so this page does not state whether it overwinters here — and gives no fall establishment date on the strength of a guess. Whether atlantic white cedar is a permanent planting or a replant-every-spring crop for you turns on your own zone within Maryland; check its hardiness range against that before treating it as long-lived ground.
Frost window: NOAA Climate Normals 1991-2020. Plant timing fields: USDA PLANTS Database. 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 atlantic white cedar survives winter here. Whether the season is long enough — and warm enough — is a different question.
Frost-free days
Atlantic White Cedar wants 140+ frost-free days; a typical Maryland site sees ~238 (NOAA Regional Climate Centers ACIS, 1991-2020). That leaves comfortable headroom for succession planting.
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
Atlantic White Cedar prefers acidic soil (pH 3.5-5.5). Maryland's silt loam can run on the acidic side, which often aligns well — confirm with a soil test before planting. It will grow across that whole span, but it does best between pH 4 and 5.5 — worth knowing before you decide whether a Maryland soil test result is a problem or just a number. Drainage requirement: poorly (saturated >50% of year). A soil-survey lookup (NRCS SSURGO) flags whether your specific site matches.
Plant pH and drainage requirements from USDA PLANTS Database. Maryland soil profile from USDA NRCS SSURGO. Site-specific verification: a 30-minute soil test from your local Extension lab.
Atlantic White Cedar in Maryland — Quick Answer
- Verdict: Yes — Strong Match
- Plant Zones: 4-8 (USDA PLANTS Database)
- State Zones: 5b-8a (USDA ARS PHZM 2023)
- Growing Season: 28°F hard freezes about Mar 18 - Mar 29 to Nov 11 - Nov 27 (NOAA Regional Climate Centers ACIS, 1991-2020)
What Else to Consider for Atlantic White Cedar in Maryland
Zone compatibility tells you about winter cold survival — but Maryland growers also need to think about:
Heavy Piedmont clay drains poorly
Humidity and heat in summer promote disease
Deer pressure in suburban areas is extreme
What to actually do about these — and the constraints that apply to every Maryland grower, not just atlantic white cedar — is covered on the Maryland growing guide.
Timing shifts within Maryland
Atlantic White Cedar needs about 140 days of frost-free season to complete its cycle. Even Garrett County — Maryland’s shortest season at 190 frost-free days — clears that by 50 days, so season length isn’t the constraint anywhere in Maryland. What varies is your own parcel.
Across Maryland’s 24 counties the frost-free season runs from 190 days in Garrett County to 270 days in Talbot County — a spread of 80 days, which is why a single statewide planting date misleads. The median Maryland county sees 238 frost-free days, leaving atlantic white cedar about 98 days of slack on a typical parcel — room for a second sowing where the season runs long.
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"). Atlantic White Cedar's 140-day requirement: USDA PLANTS / Growable Ground plant database (minimum frost-free days). A parcel report resolves your address's own frost dates.
Where in Maryland Fits Best
Even within Maryland's zones 5b-8a, county microclimates differ enough to change what thrives. These counties carry the closest zone match for atlantic white cedar (USDA PHZM 2023):
Maryland Cooperative Extension
For Maryland-specific cultivar recommendations, planting calendars, and pest pressure for atlantic white cedar, the canonical source is University of Maryland Extension. Their fact sheets carry the local trial data we can't generalize across 50 states.
Is Atlantic White Cedar native to Maryland?
Yes — the USDA PLANTS Database (accessed 2026-07-01) documents Atlantic White Cedar as native to Maryland. Planting it supports the pollinators and wildlife that evolved alongside it.
Native-range data: USDA PLANTS Database state-distribution records, accessed 2026-07-01.
Common Questions About Growing Atlantic White Cedar in Maryland
When can I plant Atlantic White Cedar in Maryland?
Maryland's last spring hard freeze (28°F) clears between Mar 18 and Mar 29, and the first fall hard freeze lands between Nov 11 and Nov 27 (NOAA Regional Climate Centers ACIS, 1991-2020). No sourced winter-hardiness floor is on record for Atlantic White Cedar, so this page does not state whether it overwinters in Maryland 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 Atlantic White Cedar grown in across Maryland?
Maryland spans USDA hardiness zones 5b-8a (USDA ARS PHZM 2023). Atlantic White Cedar carries a range of zones 4-8, so the overlap zones are where outdoor growing is most reliable.
How many frost-free days does a typical Maryland site have?
A typical Maryland site sees ~238 frost-free days per year (derived from NOAA Regional Climate Centers ACIS, 1991-2020). Atlantic White Cedar needs 140+ frost-free days, so check whether your local microclimate runs above or below the state average before settling on a planting date.
Is Atlantic White Cedar native to Maryland?
Yes — the USDA PLANTS Database (accessed 2026-07-01) documents Atlantic White Cedar as native to Maryland. Planting it supports the pollinators and wildlife that evolved alongside it.
How should I amend the soil for Atlantic White Cedar in Maryland?
Atlantic White Cedar prefers pH 3.5-5.5 and poorly (saturated >50% of year) drainage (Growable Ground Plant Database). Most Maryland soils run mildly acidic to neutral; many sites land near this band naturally, and a soil test plus targeted sulfur or organic amendment closes any gap.
Will Atlantic White Cedar actually grow on my specific land in Maryland?
State-level zone + climate data is a sketch. A Growable Ground parcel report scores atlantic white cedar 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 Maryland
State-level data is a sketch. Your Growable Ground report scores atlantic white cedar against your parcel's exact soil, sun, drainage, and frost data — not zone averages.
Three things about your lot that Maryland atlantic white cedar averages can't show:
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Growing guides for atlantic white cedar
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