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Checking the zone…
Zone 5b — The Commonwealth Garden
moderate growing season · Frost-free ~140-170 days · Min temp -15°F to -10°F
Where the original states cultivated their identities. This fertile ground supports redbud, spirea, and black-eyed susan that decorated the homes of revolutionaries. The 140-day season provided sufficient time for the three sisters - corn, beans, and squash - to sustain growing communities. Your garden grows on the very soil that nurtured a nation.
Zone 5b · moderate growing season
❄️ Frost Dates — Zone 5b
Average Last Spring Frost
April 22
Plant warm-weather crops after this date. Check 10-day forecasts before setting out tender plants.
Average First Fall Frost
October 14
Count back from this date to know how long your growing window is.
Growing Season
moderate
Frost-Free Period
~140-170 days
Min Temperature
-15°F to -10°F
📍 Where is Zone 5b?
Central Illinois, Indiana, Ohio, Pennsylvania, Utah, Nevada, parts of Colorado
🌱 Soil & Growing Notes
Generally good with moderate fertility. Mulch well to retain moisture in summer heat.
📅 Zone 5b Month-by-Month Planting Calendar
Approximate timing based on average last frost April 22 and first fall frost October 14. Always confirm with a 10-day forecast before transplanting tender crops.
Jan
🪴 Start Indoors: Peppers, Eggplant, Onions
Feb
🪴 Start Indoors: Tomatoes, Peppers, Eggplant, Cabbage, Broccoli
🌱 Direct Sow: Lettuce, Spinach, Radishes, Peas, Carrots
Mar
🌱 Direct Sow: Lettuce, Spinach, Radishes, Peas, Carrots
🌿 Transplant: Cabbage, Broccoli, Lettuce
Soil warming — harden off transplants. Direct sow cold-tolerant crops.
Apr
🌱 Direct Sow: Beans, Cucumbers, Zucchini, Corn
🌿 Transplant: Tomatoes, Peppers, Eggplant, Cabbage, Broccoli, Lettuce
🌽 Harvest: Spring Radishes, Lettuce, Spinach
Last frost around this month. Safe to transplant warm-season crops outdoors.
May
🌱 Direct Sow: Beans, Cucumbers, Zucchini, Corn
🌿 Transplant: Tomatoes, Peppers, Eggplant
🌽 Harvest: Lettuce, Spinach, Peas, Garlic (if planted last fall)
Jun
🌱 Direct Sow: Beans, Cucumbers, Zucchini, Corn
🌽 Harvest: Lettuce, Spinach, Beans, Cucumbers, Zucchini, Tomatoes, Peppers
Jul
🪴 Start Indoors: Broccoli (fall), Kale (fall)
🌽 Harvest: Beans, Cucumbers, Zucchini, Tomatoes, Peppers
Aug
🪴 Start Indoors: Broccoli (fall), Kale (fall)
🌱 Direct Sow: Lettuce (fall), Spinach (fall), Radishes (fall)
🌽 Harvest: Beans, Cucumbers, Zucchini, Tomatoes, Peppers, Kale, Carrots, Broccoli
Sep
🌱 Direct Sow: Lettuce (fall), Spinach (fall), Radishes (fall), Garlic
🌽 Harvest: Beans, Cucumbers, Zucchini, Tomatoes, Peppers, Kale, Carrots, Broccoli
Begin fall harvest. Protect tomatoes and peppers on cold nights with row cover.
Oct
🌽 Harvest: Kale, Carrots, Broccoli
First fall frost likely. Harvest remaining warm-season crops before a hard freeze.
NovRest period — plan & prepare
DecRest period — plan & prepare
What Grows Well in Zone 5b?
Zone 5b has a moderate growing season with roughly ~140-170 days of frost-free weather — last spring frost around April 22, first fall frost around October 14. That's enough time for 77+ popular garden plants, from fast-growing leafy greens to longer-season fruiting crops. Below is our curated list of plants that thrive in your zone.
🥕 Best Vegetables for Zone 5b
🌱
Asparagus
730 days · $19.99
🥕
Beets
50-70 days · $2.49
🫑
Bell Peppers
60-90 days · $3.49
🥦
Broccoli
60-90 days · $2.99
🥬
Brussels Sprouts
90-120 days · $2.99
🎃
Butternut Squash
90-110 days · $3.49
🥬
Cabbage
70-100 days · $2.49
🥕
Carrots
75 days · $3.99
🥦
Cauliflower
55-100 days · $2.99
🍅
Cherry Tomatoes
60-80 days · $3.49
🥒
Cucumbers
55 days · $4.49
🍆
Eggplants
70-90 days · $3.99
🧄
Garlic
240 days · $12.99
🫘
Green Bean
50-60 days · $3.49
🌱
Green Beans
50 days · $4.99
🌶️
Jalapeños
65-80 days · $3.49
🥬
Kale
55-75 days · $2.49
🥬
Lettuce
45 days · $3.49
🌱
Okra
50-65 days · $2.99
🧅
Onion
100 days · $4.99
🟢
Peas
60 days · $4.49
🌱
Pepper (Bell & Sweet)
70 days · $5.99
🥔
Potato
90 days · $8.99
🎃
Pumpkins
90-120 days · $3.49
🔴
Radish
22-30 days · $1.99
🌱
Rhubarb
365 days · $4.99
🥬
Spinach
40 days · $3.49
🌽
Sweet Corn
60-100 days · $2.99
🍠
Sweet Potatoes
90-120 days · $6.99
🥬
Swiss Chard
50-60 days · $2.49
🌱
Tomato
75 days · $5.99
🍅
Tomatoes
80-100 days · $3.99
🥒
Zucchini
50 days · $4.49
🥬
Celery
130 days · $3.49
🥬
Turnips
55 days · $2.99
🥒
Pickling Cucumbers
52 days · $4.49
🧅
Leeks
120 days · $3.99
🌿
Arugula
40 days · $3.49
🌿
Fennel
90 days · $3.99
🥬
Kohlrabi
55 days · $3.49
🌿
Horseradish
365 days · $8.99
🥬
Collard Greens
70 days · $3.49
🥕
Parsnips
120 days · $3.99
🌿 Best Herbs for Zone 5b
🌿
Basil
30 days
🌿
Chives
30 days
🌿
Cilantro
45-70 days
🌿
Dill
40-60 days
🌿
Lavender
90 days
🌿
Mint
30 days
🌿
Oregano
45 days
🌿
Parsley
70 days
🌿
Sage
75-90 days
🌿
Thyme
60 days
🌿
Marjoram
90 days
🌸 Companion Flowers for Zone 5b
🌼
Marigolds
60 days
🌺
Nasturtiums
55 days
🌻
Sunflowers
80 days
🌸
Borage
60 days
🌼
Chamomile
90 days
🌸
Hyssop
120 days
🌼
Tansy
120 days
🌿
Rue
120 days
🍓 Best Fruits for Zone 5b
🍎
Apple Tree
1095 days
🫐
Blackberry
365 days
🫐
Blueberry Bush
730 days
🍈
Cantaloupes
75-100 days
🍇
Grape Vine
1095 days
🍑
Peach Tree
1095 days
🍐
Pear Tree
1095 days
🍑
Plum Tree
1095 days
🍒
Cherry Tree
1095 days
🍑
Apricot Tree
1095 days
🍑
Nectarine Tree
1095 days
🍇
Raspberry
365 days
🍓
Strawberry
365 days
🍉
Watermelons
70-90 days
🌰
Black Walnut
3650 days
🐝
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