When is the last frost in USDA Zone 5B?

The average last spring frost in Zone 5B is April 17, with a range from Mar 30 to May 5 depending on the specific year. Data from NOAA 1991–2020 Climate Normals.

When is the first fall frost in Zone 5B?

The average first fall frost in Zone 5B is October 26, with a range from Oct 10 to Nov 10.

How long is the growing season in Zone 5B?

The average frost-free growing season in Zone 5B is 192 days, running from approximately April 17 to October 26.

When should I start seeds indoors in Zone 5B?

In Zone 5B, start tomatoes and peppers indoors 8–10 weeks before the last frost date of April 17. That means starting seeds in mid-winter to early spring depending on your specific transplant targets.

USDA Zone 5B

Zone 5B Planting Calendar — April 17 to October 26

Zone 5b offers reliable four-season weather with a growing season of approximately 165–180 days. Last frost typically clears by mid-April, giving gardeners a productive window through late October. Starting warm-season crops indoors and choosing early-maturing varieties makes the most of the season.

Zone 5B at a glance: Last frost averages April 17 (range Mar 30–May 5). First fall frost averages October 26. Growing season is 192 days. Start warm-season crops indoors 6–10 weeks before last frost; transplant after April 17.

Last Spring Frost

April 17

Range: Mar 30 – May 5

First Fall Frost

October 26

Range: Oct 10 – Nov 10

Growing Season

192 days

Avg. frost-free window

Winter Low

-15° to -10°F

Average minimum temp

Reference City

Kansas City, MO

Climate data source

Annual Rainfall

42"

Regular pattern

Zone 5B Planting Calendar — All Crops

Dates based on April 17 average last frost. Start indoors dates assume seed starting under grow lights or in a warm window. All dates are averages — adjust based on your specific microclimate and the current year's weather.

Plant	Type	Start Indoors	Transplant / Direct Sow	Harvest Window
Tatsoi	tatsoi	Mar 6	Mar 20 Transplant	Apr 14 – May 4
Texas 1015Y SuperSweet Onion	root	Feb 13	Mar 20 Transplant	Jul 3 – Jul 13
Acorn Squash	vegetable	—	Apr 17 Plant Out	Jul 6 – Jul 26
Alexandria Alpine Strawberry	strawberry	Mar 13	Apr 24 Transplant	Aug 2 – Aug 22
Armenian Cucumber	cucumber	Apr 10	Apr 24 Transplant	Jun 23 – Jul 3
Astro Arugula	vegetable	—	Apr 17 Plant Out	May 8 – May 27
Aunt Molly's Ground Cherry	vegetable	—	Apr 17 Plant Out	Jun 26 – Jul 16
Baby Cakes Blackberry	blackberry	—	Apr 24 Plant Out	Apr 24 – Jun 23
Bay Laurel	bay laurel	—	Apr 24 Plant Out	Jun 23 – Apr 24
Beauregard Sweet Potato	root	—	Apr 24 Direct Sow	Jul 23 – Aug 7
Bee Balm	flower	—	Apr 17 Plant Out	—
Black Beauty Eggplant	vegetable	—	Apr 17 Plant Out	Jul 1 – Jul 16
Black Beauty Zucchini	vegetable	Mar 31	Apr 28 Transplant	Jun 12 – Jun 22
Black-Eyed Pea	vegetable	—	Apr 17 Plant Out	Jun 21 – Jun 26
Black-Eyed Susan	flower	—	Apr 17 Plant Out	—
Bloomsdale Longstanding Spinach	vegetable	—	Apr 17 Plant Out	Jun 1 – Jun 8
Blue Lake Bush Bean	vegetable	—	Apr 17 Plant Out	Jun 6 – Jun 14
Bok Choy	vegetable	—	Apr 17 Plant Out	Jun 1 – Jun 16
Borage	flower	—	Apr 17 Plant Out	Jun 11 – Jul 1
Brilliant Celeriac	celeriac	Mar 6	Apr 17 Transplant	Aug 5 – Aug 15
Buckwheat	cover crop	—	Apr 17 Plant Out	May 17 – Jun 1
Butterhead Lettuce	vegetable	—	Apr 17 Plant Out	Jun 6 – Jun 21
Calendula	flower	—	Apr 17 Plant Out	Jun 6 – Jun 16
Calypso Cilantro	herb	—	Apr 17 Plant Out	Jun 6 – Jun 11
Cherry Belle Radish	root	—	Apr 24 Direct Sow	May 15 – May 24
Chinese Broccoli (Gai Lan)	vegetable	—	Apr 17 Plant Out	May 17 – Jun 6
Chioggia Beet	root	—	Apr 24 Direct Sow	Jun 18 – Jun 28
Chives	herb	—	Apr 17 Plant Out	Jun 16 – Jul 1
Clemson Spineless Okra	vegetable	—	Apr 17 Plant Out	Jun 11 – Jun 20
Common Sage	herb	—	Apr 17 Plant Out	Jul 1 – Jul 16
Contender Bush Bean	vegetable	—	Apr 17 Plant Out	Jun 1 – Jun 11
Cosmic Purple Carrot	root	—	Apr 24 Direct Sow	Jun 21 – Jul 8
Cosmos	flower	—	Apr 17 Plant Out	Jun 26 – Jul 16
Crimson Clover	cover crop	—	Apr 17 Plant Out	Jun 16 – Jul 16
Crimson Sweet Watermelon	vegetable	—	Apr 17 Plant Out	Jul 6 – Jul 16
Curly Kale	vegetable	—	Apr 17 Plant Out	Jun 11 – Jun 21
Curly Parsley	herb	Mar 13	Apr 17 Transplant	Jun 26 – Jul 6
Daikon Radishes	daikon radish	Mar 27	Apr 3 Transplant	May 18 – May 28
Danvers Carrot	root	—	Apr 24 Direct Sow	Jul 3 – Jul 13
Delicata Squash	vegetable	—	Apr 17 Plant Out	Jul 6 – Jul 26
Detroit Dark Red Beet	root	—	Apr 24 Direct Sow	Jun 18 – Jun 23
Dill	herb	—	Apr 17 Plant Out	May 27 – Jun 11
Dragon Tongue Bean	vegetable	—	Apr 17 Plant Out	Jun 11 – Jun 16
Echinacea	flower	—	Apr 17 Plant Out	—
Edamame	vegetable	—	Apr 17 Plant Out	Jul 1 – Jul 21
Eight Ball Zucchini	zucchini	Apr 10	Apr 24 Transplant	Jun 8 – Jun 18
Endive / Escarole	vegetable	—	Apr 17 Plant Out	Jun 1 – Jun 21
English Lavender	herb	—	Apr 17 Plant Out	Jul 16 – Aug 15
English Lavender	flower	—	Apr 17 Plant Out	—
English Thyme	herb	—	Apr 24 Plant Out	Jul 3 – Jul 23
Epazote	epazote	Apr 3	Apr 24 Transplant	Jun 18 – Jun 28
Fall Rutabagas	rutabaga	—	Apr 17 Plant Out	Jul 11 – Jul 26
Fava Bean	vegetable	—	Apr 17 Plant Out	Jul 1 – Jul 26
Flat-Leaf Parsley	herb	Mar 13	Apr 17 Transplant	Jun 26 – Jul 16
French Breakfast Radish	root	—	Apr 24 Direct Sow	May 15 – May 22
French Marigold	flower	—	Apr 17 Plant Out	Jun 6 – Jun 16
French Tarragon	herb	—	Apr 17 Plant Out	Jun 16 – Jul 6
Garlic Chives	herb	—	Apr 17 Plant Out	Jun 16 – Jul 1
Georgia Southern Collard Greens	vegetable	—	Apr 17 Plant Out	Jun 16 – Jul 6
German Chamomile	herb	—	Apr 17 Plant Out	Jun 16 – Jun 21
Gold Rush Zucchini	zucchini	Apr 10	Apr 24 Transplant	Jun 8 – Jun 13
Golden Beet	root	—	Apr 24 Direct Sow	Jun 18 – Jun 28
Greek Oregano	herb	—	Apr 24 Plant Out	Jun 23 – Jul 13
Green Fingers Persian Cucumber	cucumber	Apr 10	Apr 24 Transplant	Jun 18 – Jun 23
Green Onion	vegetable	—	Apr 17 Plant Out	Jun 16 – Jul 16
Heirloom Red Kuri Squash	winter squash	Apr 10	Apr 24 Transplant	Jul 23 – Aug 2
Herb Fennel	herb	—	Apr 17 Plant Out	Jun 16 – Jun 26
Heritage Raspberry	raspberry	—	Apr 24 Plant Out	Apr 24 – Jun 23
Horseradish	vegetable	—	Apr 17 Plant Out	Sep 4 – Sep 24
Imperial Star Artichoke	artichoke	Mar 13	Apr 17 Transplant	Jul 16 – Jul 26
Jack O'Lantern Pumpkin	vegetable	—	Apr 17 Plant Out	Jul 16 – Aug 5
Japanese Eggplant	vegetable	—	Apr 17 Plant Out	Jun 6 – Jun 21
Jersey Knight Asparagus	vegetable	—	Apr 17 Plant Out	Apr 16
Kentucky Wonder Pole Bean	vegetable	—	Apr 17 Plant Out	Jun 14 – Jun 26
Lacinato Kale	vegetable	—	Apr 17 Plant Out	Jun 16 – Jun 21
Leaf Lettuce Mix	vegetable	—	Apr 17 Plant Out	Jun 1 – Jun 11
Leek	vegetable	—	Apr 17 Plant Out	Jul 26 – Aug 25
Lemon Balm	herb	—	Apr 17 Plant Out	Jun 1 – Jun 16
Lemon Cucumber	vegetable	—	Apr 17 Plant Out	Jun 16 – Jun 26
Lemon Verbena	lemon verbena	—	Apr 24 Plant Out	Jul 23 – Aug 22
Lemongrass	herb	—	Apr 17 Plant Out	Jul 1 – Jul 26
Lima Bean	vegetable	—	Apr 17 Plant Out	Jun 16 – Jul 6
Mammoth Sunflower	flower	—	Apr 17 Plant Out	Jun 21 – Jul 6
Mesclun Mix	vegetable	—	Apr 17 Plant Out	May 8 – May 17
Mizuna	vegetable	—	Apr 17 Plant Out	May 27 – Jun 6
Mrs. Burns Lemon Basil	basil	Mar 27	Apr 24 Transplant	Jun 23 – Jul 3
Mustard Greens	vegetable	—	Apr 17 Plant Out	May 22 – Jun 6
Mâche (Corn Salad)	vegetable	—	Apr 17 Plant Out	Jun 16 – Jul 10
Nantes Carrot	root	—	Apr 24 Direct Sow	Jun 25 – Jul 8
Napa Cabbage	vegetable	—	Apr 17 Plant Out	Jun 26 – Jul 16
Nasturtium	flower	—	Apr 17 Plant Out	Jun 6 – Jun 21
National Pickling Cucumber	vegetable	—	Apr 17 Plant Out	Jun 6 – Jun 14
New Zealand Spinach	new zealand spinach	Apr 10	Apr 24 Transplant	Jun 13 – Jun 23
Orion Florence Fennel	fennel	Apr 3	Apr 24 Transplant	Jul 13 – Jul 23
Ozark Beauty Strawberry	strawberry	—	Apr 24 Plant Out	Jun 23 – Jul 23
Parsnip	root	—	Apr 24 Direct Sow	Aug 2 – Sep 1
Patriot Blueberry	blueberry	—	Apr 24 Plant Out	Apr 23
Pattypan Squash	vegetable	—	Apr 17 Plant Out	Jun 3 – Jun 11
Peppermint	herb	—	Apr 17 Plant Out	May 17 – Jun 1
Popcorn	vegetable	—	Apr 17 Plant Out	Jul 11 – Aug 15
Provider Bush Bean	vegetable	—	Apr 17 Plant Out	Jun 6 – Jun 11
Radicchio	vegetable	—	Apr 17 Plant Out	Jun 16 – Jul 11
Raspberry Shortcake Raspberry	raspberry	—	Apr 24 Plant Out	Apr 24 – Jun 23
Red Leaf Lettuce	vegetable	—	Apr 17 Plant Out	Jun 1 – Jun 11
Red Pontiac Potato	root	—	Apr 24 Direct Sow	Jul 23 – Aug 12
Red Russian Kale	vegetable	—	Apr 17 Plant Out	Jun 6 – Jun 16
Rhubarb	vegetable	—	Apr 17 Plant Out	Apr 17 – Apr 16
Romaine Lettuce	vegetable	—	Apr 17 Plant Out	Jun 21 – Jul 1
Scarlet Runner Bean	vegetable	—	Apr 17 Plant Out	Jun 16 – Jun 26
Seascape Strawberry	strawberry	—	Apr 24 Plant Out	Jul 8 – Jul 23
Shallot	vegetable	—	Apr 17 Plant Out	Jul 16 – Aug 15
Shelling Pea	vegetable	—	Apr 17 Plant Out	Jun 11 – Jun 26
Silver Queen Sweet Corn	vegetable	—	Apr 17 Plant Out	Jul 16 – Jul 18
Snow Pea	vegetable	—	Apr 17 Plant Out	Jun 8 – Jun 26
Softneck Garlic	root	—	Apr 24 Direct Sow	Dec 20 – Jan 19
Spacemaster Bush Cucumber	cucumber	Apr 10	Apr 24 Transplant	Jun 23 – Jun 28
Spaghetti Squash	vegetable	—	Apr 17 Plant Out	Jul 14 – Jul 26
Spearmint	herb	—	Apr 17 Plant Out	May 17 – Jun 1
Stevia	herb	—	Apr 17 Plant Out	Jul 16 – Aug 15
Straight Eight Cucumber	cucumber	Apr 10	Apr 24 Transplant	Jun 23 – Jun 28
Sugar Pie Pumpkin	vegetable	—	Apr 17 Plant Out	Jul 16 – Aug 5
Sugar Snap Pea	vegetable	—	Apr 17 Plant Out	Jun 11 – Jun 26
Sunshine Blue Blueberry	blueberry	—	Apr 24 Plant Out	Apr 23
Sunshine Kabocha Squash	winter squash	Apr 10	Apr 24 Transplant	Jul 28 – Aug 2
Sweet Alyssum	flower	—	Apr 17 Plant Out	May 27 – Jun 11
Sweet Marjoram	marjoram	Mar 27	Apr 24 Transplant	Jul 8 – Jul 23
Swiss Chard	vegetable	—	Apr 17 Plant Out	Jun 6 – Jun 16
Tall Utah 52-70 Celery	vegetable	—	Apr 17 Plant Out	Jul 26 – Aug 25
Tomatillo	vegetable	—	Apr 17 Plant Out	Jun 16 – Jul 11
Top Hat Blueberry	blueberry	—	Apr 24 Plant Out	Apr 23
Turnip	root	—	Apr 24 Direct Sow	Jun 13 – Jun 23
Watermelon Radish	root	—	Apr 24 Direct Sow	Jun 13 – Jun 28
Winner Kohlrabi	vegetable	—	Apr 17 Plant Out	Jun 1 – Jun 6
Yard Long Bean	vegetable	—	Apr 17 Plant Out	Jun 16 – Jul 16
Yarrow	flower	—	Apr 17 Plant Out	—
Yellow Crookneck Squash	vegetable	—	Apr 17 Plant Out	Jun 6 – Jun 16
Yukon Gold Potato	root	—	Apr 24 Direct Sow	Jul 13 – Aug 2
Zinnia	flower	—	Apr 17 Plant Out	Jun 16 – Jul 16
Amish Paste Tomatoes	tomato	Apr 3	May 1 Transplant	Jul 14 – Jul 25
Anaheim Peppers	pepper	Mar 27	May 1 Transplant	Jul 17 – Jul 25
Banana Peppers	pepper	Apr 3	May 8 Transplant	Jul 7 – Jul 17
Beefsteak Tomatoes	tomato	Apr 24	May 1 Transplant	Jul 20 – Jul 25
Better Boy Tomatoes	tomato	Apr 10	May 1 Transplant	Jul 10 – Jul 15
Bhut Jolokia Ghost Pepper	pepper	Mar 27	May 1 Transplant	Jul 30 – Aug 29
Big Jim Hatch Chile	pepper	Mar 27	May 1 Transplant	Jul 10 – Jul 15
Black Cherry Tomato	tomato	Apr 3	May 1 Transplant	Jul 4 – Jul 15
Black Krim Tomatoes	tomato	Apr 24	May 1 Transplant	Jul 15 – Jul 20
Black Oil Sunflower Microgreens	sunflower microgreens	Apr 24	May 1 Transplant	May 8 – May 13
Brandywine Tomatoes	tomato	Apr 24	May 1 Transplant	Jul 20 – Jul 30
Broccolini	vegetable	Mar 27	May 1 Transplant	Jun 20 – Jul 10
Brussels Sprouts	vegetable	Mar 27	May 1 Transplant	Jul 25 – Aug 19
Butternut Squash	vegetable	Apr 3	May 1 Transplant	Aug 9 – Aug 29
California Wonder Peppers	pepper	Apr 3	May 8 Transplant	Jul 19 – Jul 22
Cantaloupe	vegetable	Apr 3	May 1 Transplant	Jul 20 – Jul 30
Caribbean Red Scotch Bonnet Pepper	pepper	Mar 27	May 1 Transplant	Aug 4 – Aug 29
Cayenne Peppers	pepper	Mar 27	May 1 Transplant	Jul 25 – Aug 4
Celebrity Tomatoes	tomato	Apr 24	May 1 Transplant	Jul 10 – Jul 12
Celeste Fig	fig	—	May 1 Plant Out	May 1 – Apr 30
Cherokee Purple Tomatoes	tomato	Apr 24	May 1 Transplant	Jul 18 – Jul 25
Chicago Hardy Fig	fig	—	May 1 Plant Out	May 1 – Apr 30
Corno di Toro Pepper	pepper	Mar 27	May 1 Transplant	Jul 15 – Jul 20
Cubanelle Peppers	pepper	Apr 3	May 8 Transplant	Jul 9 – Jul 17
Culinary Turmeric	turmeric	Apr 10	May 8 Transplant	Jan 3 – Mar 4
Cupid Grape Tomato	tomato	Apr 10	May 1 Transplant	Jul 5 – Jul 10
Early Girl Tomatoes	tomato	Apr 24	May 1 Transplant	Jun 22 – Jul 2
Fresno Peppers	pepper	Mar 27	May 1 Transplant	Jul 15 – Jul 20
Genovese Basil	herb	Apr 3	May 1 Transplant	Jun 30 – Jul 10
Ginger	ginger	Apr 10	May 8 Transplant	Jan 3 – Mar 4
Green Cabbage	vegetable	Mar 27	May 1 Transplant	Jun 30 – Aug 9
Green Zebra Tomatoes	tomato	Apr 24	May 1 Transplant	Jul 15 – Jul 18
Habanero Pepper	pepper	Mar 27	May 8 Transplant	Aug 6 – Sep 5
Honeydew Melon	vegetable	Apr 3	May 1 Transplant	Aug 9 – Aug 24
Hungarian Hot Wax Pepper	pepper	Mar 27	May 1 Transplant	Jul 5 – Jul 15
Improved Meyer Lemon	meyer lemon	—	May 1 Plant Out	Apr 30
Jalapeño Peppers	pepper	Mar 27	May 1 Transplant	Jul 5 – Jul 15
Jimmy Nardello Peppers	pepper	Apr 3	May 8 Transplant	Jul 27 – Aug 6
Juliet Tomatoes	tomato	Apr 10	May 1 Transplant	Jun 29 – Jul 1
King Arthur Peppers	pepper	Apr 3	May 8 Transplant	Jul 9 – Jul 15
Lunchbox Mini Peppers	pepper	Apr 3	May 8 Transplant	Jul 2 – Jul 7
Marketmore 76 Cucumber	vegetable	Apr 3	May 1 Transplant	Jun 28 – Jul 8
Midnight Snack Tomato	tomato	Apr 3	May 1 Transplant	Jul 5 – Jul 10
Mortgage Lifter Tomatoes	tomato	Apr 24	May 1 Transplant	Jul 20 – Jul 25
Mountain Magic Tomatoes	tomato	Apr 24	May 1 Transplant	Jul 12 – Jul 15
Mucho Nacho Jalapeño Peppers	pepper	Apr 3	May 1 Transplant	Jul 8 – Jul 10
Nagami Kumquat	kumquat	—	May 1 Plant Out	Apr 30
Padron Peppers	pepper	Apr 3	May 8 Transplant	Jul 7 – Jul 12
Patio Princess Tomatoes	tomato	Apr 10	May 1 Transplant	Jul 5 – Jul 10
Pinkeye Purple Hull Pea	cowpea	Mar 6	May 1 Transplant	Jun 25 – Jul 8
Poblano Peppers	pepper	Mar 27	May 1 Transplant	Jul 5 – Jul 15
Purple Basil	herb	Apr 3	May 1 Transplant	Jul 10 – Jul 25
Rambo Radish Microgreens	radish microgreens	Apr 24	May 1 Transplant	May 7 – May 11
Red Cabbage	vegetable	Mar 27	May 1 Transplant	Jul 10 – Aug 19
Red-Stem Malabar Spinach	malabar spinach	Apr 10	May 1 Transplant	Jun 25 – Jul 10
Roma VF Tomatoes	tomato	Apr 24	May 1 Transplant	Jul 15 – Jul 20
Romanesco	vegetable	Mar 27	May 1 Transplant	Jul 15 – Aug 9
Rosemary	herb	—	May 1 Plant Out	Jul 20 – Aug 9
Rutgers Tomato	tomato	Apr 3	May 1 Transplant	Jul 10 – Jul 20
San Marzano Tomatoes	tomato	Apr 24	May 1 Transplant	Jul 18 – Jul 28
Serrano Peppers	pepper	Mar 27	May 1 Transplant	Jul 10 – Jul 20
Shishito Peppers	pepper	Apr 3	May 8 Transplant	Jul 7 – Jul 12
Snow Crown Cauliflower	vegetable	Mar 27	May 1 Transplant	Jun 20 – Jun 30
Speckled Pea Shoot Microgreens	pea shoot microgreens	Apr 24	May 1 Transplant	May 9 – May 15
Sugar Baby Watermelon	vegetable	Apr 3	May 1 Transplant	Jul 15 – Jul 20
Sun Gold Tomatoes	tomato	Apr 10	May 1 Transplant	Jun 27 – Jul 5
Supersweet 100 Tomatoes	tomato	Apr 10	May 1 Transplant	Jun 30 – Jul 5
Sweet 100 Tomatoes	tomato	Apr 10	May 1 Transplant	Jun 30 – Jul 5
Sweet Million Tomato	tomato	Apr 3	May 1 Transplant	Jun 30 – Jul 5
Thai Basil	herb	Apr 3	May 1 Transplant	Jun 30 – Jul 5
Thai Hot Peppers	pepper	Mar 27	May 1 Transplant	Jul 15 – Jul 25
Tiny Tim Tomato	tomato	Apr 3	May 1 Transplant	Jun 15 – Jun 25
Tumbling Tom Red Tomato	tomato	Apr 3	May 1 Transplant	Jul 5 – Jul 10
Waltham 29 Broccoli	vegetable	Mar 27	May 1 Transplant	Jul 15 – Jul 30
Yellow Pear Tomatoes	tomato	Apr 10	May 1 Transplant	Jul 10 – Jul 18
Garlic	garlic	Oct 12	Oct 19 Transplant	Jun 16 – Jul 16

Browse Zone 5B by Month

See exactly what to plant, transplant, and harvest each month in Zone 5B.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Zone 5B Growing Tips

Average last spring frost is April 17 and first fall frost is October 26 — these are the anchor dates your entire planting schedule is built around.
Heat and humidity can stress crops in mid-summer. Mulching critical.
Good spring/summer rainfall with thunderstorms. Dry spells possible in Aug-Sep.
Disease pressure in this zone is moderate. Primary risks include early blight, powdery mildew, septoria leaf spot. Proper plant spacing, air circulation, and avoiding overhead watering significantly reduce disease incidence.
Fall cool-season crops (lettuce, spinach, kale, radishes) should go in the ground between August 1 and September 15 for harvest before hard frost arrives.

States in Zone 5B

Zone 5B spans parts of these states. Note that zone boundaries run within states — check your specific ZIP code for your exact zone.

Iowa Illinois (north) Indiana (north) Ohio (north) Pennsylvania (mountains) Massachusetts Connecticut Rhode Island Nebraska (east)

Zone 5A Zone 5B Calendar Zone 6A

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Frost dates from NOAA 1991–2020 Climate Normals via NOAA 1991-2020 Climate Normals, NWS Kansas City (EAX). Growing season data from University of Missouri Extension. Planting dates are averages based on zone frost dates and standard horticultural timing — adjust for your local microclimate.