Generally — Most Areas
hickory (zones 4-8) partially overlaps with Maryland (5b-8a). It can grow in zones 5-8 within 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 hickory against your parcel's actual hardiness, soil, and sun.
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Zone Comparison
Hickory Needs
- USDA Zones: 4-8
- Soil pH: 5 - 7.5
- Sun: Full Sun
- Drainage: well (dry spells)
- Frost-Free Days: 140+
Maryland Has
- USDA Zones: 5b-8a
- Last Frost: Mar 25 - May 5
- First Frost: Oct 5 - Nov 5
- 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 / plant_species_v5.csv. State data: USDA ARS PHZM 2023, NOAA Climate Normals, NRCS SSURGO.
When to Plant Hickory in Maryland
The frost window
Across Maryland, the last spring frost clears between Mar 25 and May 5, and the first fall frost lands between Oct 5 and Nov 5 (NOAA Climate Normals 1991-2020). Counting from the latest last frost to the earliest first frost, that's a 153-day window you can count on — up to 225 days on a mild site in a kind year.
Frost tenderness
Hickory is frost-tender — its listed minimum temperature is 41°F (USDA PLANTS Database) — so set plants out after the last frost has cleared your local site, not the state's earliest date.
Establishment timing
As a long-lived plant, hickory isn't racing the calendar to a harvest date. Plant it in spring once the last-frost window passes so roots settle in through the full season, or in early fall while the soil still holds summer warmth.
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
Zone compatibility says you can survive winter here. Whether the growing season is long enough — and warm enough — is a different question.
Frost-free days
Hickory wants 140+ frost-free days; a typical Maryland site sees ~190 (NOAA Climate Normals). That leaves a workable window — start indoors to bank time.
Growing degree days
Hickory needs ~2500 GDD (base 50°F) to ripen. The state median runs ~3500 GDD (USDA NRCS county aggregates), so Maryland's typical season clears that easily.
Chill hours
Hickory requires ~1000 chill hours (32-45°F dormancy window). Maryland typically banks ~1200 chill hours per winter (MSU Extension method), which keeps this plant on track.
Climate aggregates derive from USDA NRCS county-level hardiness data + Cornell CALS Extension GDD-by-region tables + MSU Extension chill-hours-by-zone (1991-2020 NOAA Climate Normals baseline).
Soil + Drainage Fit
Hickory likes near-neutral soil (pH 5-7.5). That's the common-ground band across Maryland's silt loam and clay — a soil test confirms it for your site. Drainage matters: this plant wants well (dry spells). If your Maryland site is heavier clay or sits in a low spot, raised beds or amendment with compost solve it.
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.
Hickory in Maryland — Quick Answer
- Verdict: Generally — Most Areas
- Plant Zones: 4-8 (USDA PLANTS Database)
- State Zones: 5b-8a (USDA ARS PHZM 2023)
- Growing Season: Mar 25 - May 5 to Oct 5 - Nov 5 (NOAA Climate Normals)
- Days to Maturity: 3650 days
What Else to Consider
Zone compatibility tells you about winter cold survival — but Maryland growers also need to think about:
Heavy Piedmont clay drains poorly
A raised bed today, compost every fall — Piedmont clay becomes an asset once the drainage is yours.
Humidity and heat in summer promote disease
Morning watering at the base, room to breathe between plants, resistant varieties — the humid-summer basics, per your extension.
Deer pressure in suburban areas is extreme
A tall fence is the answer that holds; for everything outside it, lean toward the plants deer reliably skip.
Maryland Cooperative Extension
For Maryland-specific cultivar recommendations, planting calendars, and pest pressure for hickory, the canonical source is University of Maryland Extension. Their fact sheets carry the local trial data we can't generalize across 50 states.
Is Hickory native to Maryland?
Yes — the USDA PLANTS Database (accessed 2026-07-01) documents Hickory 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 Hickory in Maryland
When can I plant Hickory in Maryland?
Maryland's last spring frost clears between Mar 25 and May 5, and the first fall frost lands between Oct 5 and Nov 5 (NOAA Climate Normals 1991-2020). Hickory is a long-lived planting, so target spring just after your local last frost — or early fall while the soil holds warmth — and let it establish through the season.
What hardiness zone is Hickory grown in across Maryland?
Maryland spans USDA hardiness zones 5b-8a (USDA ARS PHZM 2023). Hickory 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 ~190 frost-free days per year (derived from NOAA Climate Normals 1991-2020). Hickory 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 Hickory native to Maryland?
Yes — the USDA PLANTS Database (accessed 2026-07-01) documents Hickory as native to Maryland. Planting it supports the pollinators and wildlife that evolved alongside it.
How should I amend the soil for Hickory in Maryland?
Hickory prefers pH 5-7.5 and well (dry spells) drainage (USDA PLANTS Database). That sits in the common-ground band across Maryland soils — a 30-minute soil test from a local Extension lab confirms it for your specific site.
Will Hickory actually grow on my specific land in Maryland?
State-level zone + climate data is a sketch. A Growable Ground parcel report scores hickory 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 hickory against your parcel's exact soil, sun, drainage, and frost data — not zone averages.
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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