Regional guide · hardiness Zone 6
Great Lakes and Northeast: long enough for almost everything.
Zone 6 wraps the southern Great Lakes — Toronto, Hamilton, Buffalo, Chicago, Detroit, Cleveland — and reaches to Halifax, Boston, Pittsburgh, Columbus and Kansas City. Lake moderation delays both spring and fall frost near the water. The season is long enough for late tomatoes, sweet potatoes, peaches and a proper fall garden.
Winter low
−23 to −18°C
−10 to 0°F
Frost-free days
160–190
Typical frost window
Roughly late April to late October.
Regions in Zone 6
Open any region for this week's live local guide — forecast, soil, moon, waters and an AI field note.
Gardening in Zone 6
A generous zone where heat-loving crops ripen fully and many borderline perennials survive with mulch. Near the lakes, spring arrives late but fall lingers — plan for a long harvest tail.
Vegetables that thrive
- Long-season tomatoes and paste types
- Peppers, eggplant and okra
- Sweet potatoes and melons
- Sweet corn (successions)
- Winter squash and pumpkins
- Garlic, leeks and onions
- Spring and fall brassicas, roots and greens
- Overwintered spinach and kale under cover
Fruit
- Peaches, nectarines and apricots
- Apples, pears and Asian pears
- Sweet and sour cherries
- Grapes including many vinifera
- Figs in protected sites (‘Chicago Hardy’)
- Blueberries, raspberries and blackberries
- Pawpaw and persimmon (American)
- Hardy kiwi
Reliable perennials & shrubs
- Hydrangea macrophylla (with protection)
- Roses of all kinds
- Lavender, rosemary (marginal)
- Japanese maple
- Boxwood and yew
- Crape myrtle (hardy cultivars, marginal)
Zone tips
- Near the Great Lakes, wait for soil to warm — a mid-May tomato transplant usually catches an early-May one.
- Use fall to your advantage: sow kale, spinach, carrots and turnips through August; they hold into December.
- Plant garlic late October to early November.
- Peaches want a sloped, frost-draining site; avoid low pockets.
Fishing in Zone 6
Great Lakes fishing at its best — salmon and steelhead runs, trophy smallmouth, walleye and perch — plus bass, catfish and crappie in the inland lakes and reservoirs, and striped bass and mackerel off the Atlantic coast.
Signature species
- Smallmouth and largemouth bass
- Walleye and yellow perch (Lake Erie)
- Chinook and coho salmon, steelhead and brown trout (Great Lakes)
- Muskellunge and northern pike
- Channel and flathead catfish
- Crappie and bluegill
- Striped bass, bluefish and mackerel (New England coast)
- Carp (increasingly popular on the fly)
Seasons, limits and licences vary by province and state; every local guide links to the right regulator.
Foraging in Zone 6
Rich deciduous forests give a long foraging calendar: ramps and morels in April, berries and elderflower in summer, then pawpaws, nuts and one of the best fall mushroom seasons anywhere.
What to look for
- Ramps and morels (April–May)
- Fiddleheads
- Mulberries and serviceberries
- Black raspberries and wineberries
- Pawpaws (September)
- Black walnuts, hickory nuts, hazelnuts
- Chicken of the woods, hen of the woods, lion's mane, oyster mushrooms
- Autumn olive and wild grapes
Never eat anything you cannot identify with certainty. Confirm with a regional field guide or local expert.
The Zone 6 year
February–March
Start onions and peppers, then tomatoes; steelhead in the tributaries; maple sap.
April
Cool crops in; ramps, morels and fiddleheads; walleye run on the rivers.
May
Tomatoes out mid-month; smallmouth pre-spawn; mulberries by month end.
June–July
Garlic harvest; berries; bass and walleye on structure; sow fall crops from mid-July.
August–September
Peak harvest; pawpaws; salmon staging off river mouths; hen of the woods begins.
October–November
First frost late October; salmon and steelhead runs; nuts; plant garlic and bulbs.
December–January
Overwintered greens under cover; some ice fishing inland; prune in late winter.
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