Skip To Content Close Keyboard Navigation

Your cart

Close

Your cart is currently empty.

x

Cold Winter Areas

Zones: 1–7a

These zones experience cold winters with extended periods of freezing temperatures. In March, monitor soil conditions, thaw cycles, and late frosts as you prepare for early outdoor sowing. Indoors, this is a busy month for starting cool-season crops and hardy flowers under lights or in a greenhouse so they are ready to transplant as soon as the weather warms.

Indoors (fresh harvests):

  • Microgreens: peas, broccoli, sunflowers, arugula.
  • Sprouts: alfalfa, broccoli, radish, mung
  • Herbs & greens under lights: chives, parsley, mint

Crops to start indoors in good light: bunching onion, eggplant, tomato, pepper, zinnia, basil, Swiss chard, cosmos

Transplants to move outdoors (weather permitting - harden first): Onion, parsley, broccoli, cabbage, kohlrabi, arugula, pansy, viola

Crops that can be directly sown outdoors in March (assume intermittent frosts; a low tunnel or row cover makes most of these reliable): pak choi, cabbage, kale, mustard, fava bean, pea, turnip, parsnip, sweet pea

Cover crops: winter rye, fava bean, hairy vetch, red or white clover, and cover crop mixes.

Tip: This zone group covers a lot of territory. Nothing takes the place of talking with experienced gardeners in your area and, of course, watching the weather closely.

Use your USDA zone as a guide. Microclimates matter—coastal/urban spots run warmer; high elevation runs colder. 7b pockets can follow “Mild” recommendations with protection.

50 100 true //store.trueleafmarket.com/cdn/shop/t/54/assets/review-fallback.json?v=33078429469613971781712858278
Legend: H for Heirloom, O for Organic, A for AAS Winner, F for staff favorites
2077 Items
{ "manual": "Featured", "most-relevant": "Most relevant", "best-selling": "Best selling", "title-ascending": "Alphabetically, A-Z", "title-descending": "Alphabetically, Z-A", "price-ascending": "Price, low to high", "price-descending": "Price, high to low", "created-ascending": "Date, old to new", "created-descending": "Date, new to old" }
Tobacco Seeds - Piloto Cubanosmall size packet type seed packaging for - Tobacco Piloto Cubano
-0
Heirloom
Tobacco Seeds - Piloto Cubano
Starting at $4.19
Celosia Seeds - Crested - Armor Mixmid size pouch type seed packaging for - Celosia Crested Armor Mix
-0
Celosia Seeds - Crested - Armor Mix
Starting at $9.60
Pepper Seeds - Hot - Jamaican Yellow Habanerosmall size packet type seed packaging for - Pepper Hot Jamaican Yellow Habanero
-0
Pepper Seeds - Hot - Jamaican Yellow Habanero
Starting at $2.79
Lettuce Seeds - Crisphead - Hanson Improvedmid size pouch type seed packaging for - Lettuce Crisphead Hanson Improved
-0
Heirloom
Lettuce Seeds - Crisphead - Hanson Improved
Starting at $2.99
Squash Seeds - Lakotasmall size packet type seed packaging for - Squash Lakota
-0
Heirloom
Squash Seeds - Lakota
Starting at $3.09
Lettuce Seeds - Romaine / COS - Rouge D'Hiversmall size packet type seed packaging for - Lettuce Romaine / COS Rouge DHiver
-0
Heirloom
Lettuce Seeds - Romaine / COS - Rouge D'Hiver
Starting at $2.99
Pumpkin Seeds - Blue Harvest F1mid size pouch type seed packaging for - Pumpkin Blue Harvest F1
-51%
Pumpkin Seeds - Blue Harvest F1
Starting at $1.99
Torenia Seeds - Kauai Mix (Pelleted)mid size pouch type seed packaging for - Torenia Kauai Mix Pelleted
-0
Torenia Seeds - Kauai Mix (Pelleted)
Starting at $4.79
Squash Seeds - Summer - Fordhook Zucchini (Organic)small size packet type seed packaging for - Squash Summer Fordhook Zucchini Organic
-0
AAS Winner
Heirloom
Organic
Squash Seeds - Summer - Fordhook Zucchini (Organic)
Starting at $3.59
Radish Seeds - Shirahime Hatsuka Daikonmid size pouch type seed packaging for - Radish Shirahime Hatsuka Daikon
-0
Heirloom
Radish Seeds - Shirahime Hatsuka Daikon
Starting at $3.99
Pumpkin Seeds - Harvest Jack F1small size packet type seed packaging for - Pumpkin Harvest Jack F1
-0
Pumpkin Seeds - Harvest Jack F1
Starting at $3.99
Pepper Seeds - Sweet - White Cloudmid size pouch type seed packaging for - Pepper Sweet White Cloud
-0
Heirloom
Pepper Seeds - Sweet - White Cloud
Starting at $2.99
Broccoli Raab Seeds - Sorrentomid size pouch type seed packaging for - Broccoli Raab Sorrento
-0
Heirloom
Broccoli Raab Seeds - Sorrento
Starting at $3.39
Cucumber Seeds - Marketersmall size packet type seed packaging for - Cucumber Marketer
-0
AAS Winner
Heirloom
Cucumber Seeds - Marketer
Starting at $2.99
Broccoli Seeds - Chinese Broccoli - Big Stemmid size pouch type seed packaging for - Broccoli Chinese Broccoli Big Stem
-0
Heirloom
Broccoli Seeds - Chinese Broccoli - Big Stem
Starting at $3.99
Tomato Seeds - Slicing - Striped Germanmid size pouch type seed packaging for - Tomato Slicing Striped German
-0
Heirloom
Tomato Seeds - Slicing - Striped German
Starting at $2.99
Pepper Seeds - Sweet - Golden Greek Pepperoncinismall size packet type seed packaging for - Pepper Sweet Golden Greek Pepperoncini
-0
Heirloom
Pepper Seeds - Sweet - Golden Greek Pepperoncini
Starting at $3.89
Eggplant Seeds - White Eggmid size pouch type seed packaging for - Zinnia Magellan Series Orange
-31%
Heirloom
Eggplant Seeds - White Egg
Starting at $1.99
Watermelon Seeds - Icebox - Yellow Gem Sweetmid size pouch type seed packaging for - Watermelon Icebox Yellow Gem Sweet
-0
Watermelon Seeds - Icebox - Yellow Gem Sweet
Starting at $3.09
Tomato Seeds - Slicing - Mr. Stripey (Organic)small size packet type seed packaging for - Tomato Slicing Mr Stripey Organic
-0
Heirloom
Organic
Tomato Seeds - Slicing - Mr. Stripey (Organic)
$4.79
Carrot Seeds - Scarlet Redmid size pouch type seed packaging for - Carrot Scarlet Red
-0
Heirloom
Carrot Seeds - Scarlet Red
Starting at $3.69
Squash Seeds - Summer - Vegetable Marrow White Bushsmall size packet type seed packaging for - Squash Summer Vegetable Marrow White Bush
-0
Heirloom
Squash Seeds - Summer - Vegetable Marrow White Bush
Starting at $2.99
Cucumber Seeds - Poinsett 76small size packet type seed packaging for - Cucumber Poinsett 76
-33%
Heirloom
Cucumber Seeds - Poinsett 76
Starting at $1.99
Osteospermum Seeds - Asti SeriesOsteospermum Seeds - Asti Series
-0
AAS Winner
Osteospermum Seeds - Asti Series
Starting at $6.79
Cucumber Seeds - Pickling - Calypso Hybridsmall size packet type seed packaging for - Cucumber Pickling Calypso Hybrid
-0
Cucumber Seeds - Pickling - Calypso Hybrid
Starting at $3.99
Tomato Seeds - Slicing - Tangerinesmall size packet type seed packaging for - Tomato Slicing Tangerine
-0
Heirloom
Tomato Seeds - Slicing - Tangerine
Starting at $4.39
Tomato Seeds - Slicing - Amana Orangemid size pouch type seed packaging for - Tomato Slicing Amana Orange
-0
Heirloom
Tomato Seeds - Slicing - Amana Orange
Starting at $2.99
Tomato Seeds - Slicing - Phoenix HybridTomato Seeds - Slicing - Phoenix Hybrid
-0
Tomato Seeds - Slicing - Phoenix Hybrid
Starting at $5.09
Tomato Seeds - Salad - Rutgers VFmid size pouch type seed packaging for - Tomato Salad Rutgers VF
-0
Heirloom
Tomato Seeds - Salad - Rutgers VF
Starting at $2.99
Squash Seeds - Japanese, Winter - Blue Kurimid size pouch type seed packaging for - Squash Japanese Winter Blue Kuri
-0
Heirloom
Squash Seeds - Japanese, Winter - Blue Kuri
Starting at $3.99
Pumpkin Seeds - Baby Bear
Starting at $3.89
Veronica Seeds - Blue Bouquet
Starting at $2.99
[ { "featured_image": "files/piloto-cubano-tobacco-Comp.jpg", "secondary_image": "products/Seed_Packet_1ed671d3-c75e-4ad0-8c1c-e0d144a6b84e.jpg", "price": 419, "handle": "piloto-cubano-tobacco", "title": "Tobacco Seeds - Piloto Cubano", "url": "/products/piloto-cubano-tobacco", "available": true }, { "featured_image": "files/celosia-crested-armor-mix-flower-seed-Comp.jpg", "secondary_image": "products/non-gmo-seed-bag-sm_0ec3d5a6-6bd1-45d3-8505-e5cb74c73462.png", "price": 960, "handle": "celosia-crested-armor-mix-flower-seed", "title": "Celosia Seeds - Crested - Armor Mix", "url": "/products/celosia-crested-armor-mix-flower-seed", "available": true }, { "featured_image": "files/pepper-seeds-hot-jamaican-yellow-comp.jpg", "secondary_image": "products/MVS-generic-packet-com_00367164-4bd2-4020-a794-f064eef6dc2c.jpg", "price": 279, "handle": "pepper-seeds-hot-jamaican-yellow", "title": "Pepper Seeds - Hot - Jamaican Yellow Habanero", "url": "/products/pepper-seeds-hot-jamaican-yellow", "available": true }, { "featured_image": "files/lettuce-crisphead-hanson-improved-seeds-comp.jpg", "secondary_image": "products/non-gmo-sprouting-seed_3bdabaeb-c658-46a8-9261-89fc7a02b419.jpg", "price": 299, "handle": "lettuce-crisphead-hanson-improved-seeds", "title": "Lettuce Seeds - Crisphead - Hanson Improved", "url": "/products/lettuce-crisphead-hanson-improved-seeds", "available": true }, { "featured_image": "files/organic-lakota-squash-com-wm_1222x1222_14074935-b13f-4da4-a83b-682b177277c4.jpg", "secondary_image": "products/Seed_Packet_0434788c-ae78-4646-b675-6ac482141bb0.jpg", "price": 309, "handle": "lakota-squash", "title": "Squash Seeds - Lakota", "url": "/products/lakota-squash", "available": true }, { "featured_image": "files/lettuce-seeds-romaine-cos-rouge-dhiver-Comp.jpg", "secondary_image": "products/Seed_Packet_1_1_1_1_1_e811f599-c61a-421c-92b6-05a3f46d34ad.jpg", "price": 299, "handle": "lettuce-seeds-romaine-cos-rouge-dhiver", "title": "Lettuce Seeds - Romaine / COS - Rouge D'Hiver", "url": "/products/lettuce-seeds-romaine-cos-rouge-dhiver", "available": true }, { "featured_image": "products/pumpkin-blue-harvest-f1-hybrid-l-com-wm.jpg", "secondary_image": "products/non-gmo-seed-bag-1-lb-com_b1d53a9f-413e-456c-a366-fb8c32478e81.jpg", "price": 199, "handle": "pumpkin-seeds-blue-harvest-f1", "title": "Pumpkin Seeds - Blue Harvest F1", "url": "/products/pumpkin-seeds-blue-harvest-f1", "available": true }, { "featured_image": "files/torenia-kauai-mix-flower-seed-comp.jpg", "secondary_image": "products/non-gmo-sprouting-seed_68673469-8f2f-4ba8-ad8c-8d2a6b905e78.jpg", "price": 479, "handle": "torenia-kauai-mix-flower-seed", "title": "Torenia Seeds - Kauai Mix (Pelleted)", "url": "/products/torenia-kauai-mix-flower-seed", "available": true }, { "featured_image": "files/squash-seeds-summer-fordhook-organic-Comp.jpg", "secondary_image": "products/SSC-organic-generic-packet-com_dbdcd181-f467-4454-9c8a-366d75cbcd23.jpg", "price": 359, "handle": "squash-seeds-summer-fordhook-organic", "title": "Squash Seeds - Summer - Fordhook Zucchini (Organic)", "url": "/products/squash-seeds-summer-fordhook-organic", "available": true }, { "featured_image": "files/radish-seeds-shirahime-hatsuka-daikon-Comp.jpg", "secondary_image": "products/non-gmo-seed-bag-premium_7cc3c689-889c-401c-8035-04591f152562.png", "price": 399, "handle": "radish-seeds-shirahime-hatsuka-daikon", "title": "Radish Seeds - Shirahime Hatsuka Daikon", "url": "/products/radish-seeds-shirahime-hatsuka-daikon", "available": true }, { "featured_image": "files/harvest-jack-f1-pumpkin-comp.jpg", "secondary_image": "products/Seed_Packet_3253c7ef-14e7-4f8f-88f8-242b47d24625.jpg", "price": 399, "handle": "harvest-jack-f1-pumpkin", "title": "Pumpkin Seeds - Harvest Jack F1", "url": "/products/harvest-jack-f1-pumpkin", "available": true }, { "featured_image": "products/pepper-sweet-white-cloud-wm_1.jpg", "secondary_image": "products/non-gmo-seed-bag-sm_1_d234f819-3381-4335-b635-53aa0b3216fb.png", "price": 299, "handle": "pepper-seeds-sweet-white-cloud", "title": "Pepper Seeds - Sweet - White Cloud", "url": "/products/pepper-seeds-sweet-white-cloud", "available": true }, { "featured_image": "files/broccoli-raab-seeds-sorrento-Comp.jpg", "secondary_image": "products/non-gmo-seed-bag-premium_b665946b-4a0b-45f0-8007-3bcb6a131e92.png", "price": 339, "handle": "broccoli-raab-seeds-sorrento", "title": "Broccoli Raab Seeds - Sorrento", "url": "/products/broccoli-raab-seeds-sorrento", "available": true }, { "featured_image": "files/cucumber-seeds-marketer-Comp.jpg", "secondary_image": "products/Seed_Packet_1_1_1_1_1_ebf35029-6682-479d-b9c2-bb49390883bb.jpg", "price": 299, "handle": "cucumber-seeds-marketer", "title": "Cucumber Seeds - Marketer", "url": "/products/cucumber-seeds-marketer", "available": true }, { "featured_image": "files/broccoli-seeds-chinese-broccoli-big-stem-Comp.jpg", "secondary_image": "products/non-gmo-seed-bag-premium_55c48a08-4c90-4dae-b99c-b81afb80f1cf.png", "price": 399, "handle": "broccoli-seeds-chinese-broccoli-big-stem", "title": "Broccoli Seeds - Chinese Broccoli - Big Stem", "url": "/products/broccoli-seeds-chinese-broccoli-big-stem", "available": true }, { "featured_image": "files/tomato-seeds-striped-german-Comp.jpg", "secondary_image": "products/non-gmo-seed-bag-1-lb-com_489841d7-0c35-4798-9214-73e43dbe958a.jpg", "price": 299, "handle": "tomato-seeds-striped-german", "title": "Tomato Seeds - Slicing - Striped German", "url": "/products/tomato-seeds-striped-german", "available": true }, { "featured_image": "files/golden-greek-pepperoncini-Comp.jpg", "secondary_image": "products/Seed_Packet_3a816be9-3ce9-466b-b449-35be84d7ca74.jpg", "price": 389, "handle": "golden-greek-pepperoncini", "title": "Pepper Seeds - Sweet - Golden Greek Pepperoncini", "url": "/products/golden-greek-pepperoncini", "available": true }, { "featured_image": "files/eggplant-seeds-white-egg-Comp.jpg", "secondary_image": "files/MVS_1_lb.jpg", "price": 199, "handle": "eggplant-seeds-white-egg", "title": "Eggplant Seeds - White Egg", "url": "/products/eggplant-seeds-white-egg", "available": true }, { "featured_image": "files/watermelon-seeds-yellow-gem-sweet-Comp.jpg", "secondary_image": "products/non-gmo-seed-bag-1-oz-com_1_5ddab53f-5dba-4b00-8304-3dca97013825.jpg", "price": 309, "handle": "watermelon-seeds-yellow-gem-sweet", "title": "Watermelon Seeds - Icebox - Yellow Gem Sweet", "url": "/products/watermelon-seeds-yellow-gem-sweet", "available": true }, { "featured_image": "files/mr-stripey-tomato-com-wm_1222x1222_12e603c7-d7b0-4f4c-92e9-ca3ebc78ddcd.jpg", "secondary_image": "products/SSC-organic-generic-packet-com_5d647737-b6da-42bb-afd4-66981917f69a.jpg", "price": 479, "handle": "organic-mr-stripey-tomato-seeds", "title": "Tomato Seeds - Slicing - Mr. Stripey (Organic)", "url": "/products/organic-mr-stripey-tomato-seeds", "available": true }, { "featured_image": "files/pumpkin-baby-bear-Comp.jpg", "secondary_image": "products/SeedPouch_53f9d282-f7d0-4269-832d-39fabfa4b984.jpg", "price": 389, "handle": "pumpkin-baby-bear", "title": "Pumpkin Seeds - Baby Bear", "url": "/products/pumpkin-baby-bear", "available": false }, { "featured_image": "files/carrot-seeds-scarlet-red-Comp.jpg", "secondary_image": "products/non-gmo-seed-bag-premium_868f578a-8ab0-4ead-ba9d-65df099e9d13.png", "price": 369, "handle": "carrot-seeds-scarlet-red", "title": "Carrot Seeds - Scarlet Red", "url": "/products/carrot-seeds-scarlet-red", "available": true }, { "featured_image": "files/squash-seeds-summer-vegetable-marrow-white-bush-Comp.jpg", "secondary_image": "products/Seed_Packet_06d194d9-3401-431f-a6d6-bab5a3ddbf62.jpg", "price": 299, "handle": "squash-seeds-summer-vegetable-marrow-white-bush", "title": "Squash Seeds - Summer - Vegetable Marrow White Bush", "url": "/products/squash-seeds-summer-vegetable-marrow-white-bush", "available": true }, { "featured_image": "files/veronica-blue-bouquet-flower-seeds-Comp.jpg", "secondary_image": "products/non-gmo-sprouting-seed_6ec13ace-9c94-4156-baff-947d04f34d97.jpg", "price": 299, "handle": "veronica-blue-bouquet-flower-seeds", "title": "Veronica Seeds - Blue Bouquet", "url": "/products/veronica-blue-bouquet-flower-seeds", "available": false }, { "featured_image": "files/poinsett-76-cucumber-seed-Comp.jpg", "secondary_image": "products/Seed_Packet_3bbf583f-6510-46f6-8883-afb0a9881654.jpg", "price": 199, "handle": "poinsett-76-cucumber-seed", "title": "Cucumber Seeds - Poinsett 76", "url": "/products/poinsett-76-cucumber-seed", "available": true }, { "featured_image": "files/osteospermum-asti-series-flower-seed-comp.jpg", "secondary_image": "products/osteospermum-asti-series-white-seed-wm_700.jpg", "price": 679, "handle": "osteospermum-asti-series-flower-seed", "title": "Osteospermum Seeds - Asti Series", "url": "/products/osteospermum-asti-series-flower-seed", "available": true }, { "featured_image": "files/cucumber-seeds-calypso-f1-Comp.jpg", "secondary_image": "products/MVS-generic-packet_1_a45d3ef9-063f-462c-8feb-16118e4ab558.jpg", "price": 399, "handle": "cucumber-seeds-calypso-f1", "title": "Cucumber Seeds - Pickling - Calypso Hybrid", "url": "/products/cucumber-seeds-calypso-f1", "available": true }, { "featured_image": "files/tangerine-tomato-Comp.jpg", "secondary_image": "products/Seed_Packet_00c34f9d-3938-4ec0-ba64-613bf9275c1e.jpg", "price": 439, "handle": "tangerine-tomato", "title": "Tomato Seeds - Slicing - Tangerine", "url": "/products/tangerine-tomato", "available": true }, { "featured_image": "files/tomato-seeds-amana-orange-Comp.jpg", "secondary_image": "products/non-gmo-seed-bag-1-oz-sm_1_1_79d37c79-2d3d-4707-b4c0-919b92796e03.png", "price": 299, "handle": "tomato-seeds-amana-orange", "title": "Tomato Seeds - Slicing - Amana Orange", "url": "/products/tomato-seeds-amana-orange", "available": true }, { "featured_image": "files/tomato-phoenix-hybrid-seeds-comp.jpg", "secondary_image": "products/Seed_Pouch_1_1_1_e7a57faf-748d-4883-b38c-200d629e3f3c.jpg", "price": 509, "handle": "tomato-phoenix-hybrid-seeds", "title": "Tomato Seeds - Slicing - Phoenix Hybrid", "url": "/products/tomato-phoenix-hybrid-seeds", "available": true }, { "featured_image": "files/tomato-rutgers-seeds-Comp.jpg", "secondary_image": "products/non-gmo-sprouting-seed_591e81c4-4c99-43fb-ae00-1198ac7884c0.jpg", "price": 299, "handle": "tomato-rutgers-seeds", "title": "Tomato Seeds - Salad - Rutgers VF", "url": "/products/tomato-rutgers-seeds", "available": true }, { "featured_image": "files/squash-seeds-japanese-winter-blue-kuri-comp.jpg", "secondary_image": "products/non-gmo-seed-bag-premium_6c4fb5fa-e64c-4c56-b472-d6bcec397eb2.png", "price": 399, "handle": "squash-seeds-japanese-winter-blue-kuri", "title": "Squash Seeds - Japanese, Winter - Blue Kuri", "url": "/products/squash-seeds-japanese-winter-blue-kuri", "available": true } ]
%HHours
%MMinutes
%SSeconds
%-dDays
%HHours
%MMinutes
%SSeconds
%-wWeeks
%-dDays
%HHours
%MMinutes
%SSeconds
%HHours
%MMinutes
%SSeconds
%-dDays
%HHours
%MMinutes
%SSeconds
%-wWeeks
%-dDays
%HHours
%MMinutes
%SSeconds
//store.trueleafmarket.com/cdn/shop/t/54/assets/favicon-dark.webp?v=99523036855073563661712858117 //store.trueleafmarket.com/cdn/shop/t/54/assets/option-a.js?v=321266 //store.trueleafmarket.com/cdn/shop/t/54/assets/option-b.js?v=321266 Back to top