March is the month when most gardens really wake up. In colder regions, it is prime time for indoor seed starting and preparing beds. In milder climates, spring planting is already rolling, and in the warmest zones, the garden may be producing heavily while you begin shifting toward heat-loving crops.
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 settles.
Zones 7b-9a: These zones experience mild winter weather and are warming quickly in March. Many cool-season crops can be direct sown outdoors, and succession planting helps keep harvests coming as temperatures rise. It is also a great time to start warm-season favorites indoors while keeping frost protection on hand for unexpected cold snaps. And of course, sprouts and microgreens are always in season indoors!
Zones 9b-12: Depending on your area, March can be peak garden season in these warm-winter zones. Many crops planted earlier are now producing, and this month often marks the transition from late cool-season planting to the start of warm-season gardening. In the hottest areas, you may begin planting heat lovers while timing your last rounds of tender cool-season crops before warmer weather arrives.
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![Legend: H for Heirloom, O for Organic, A for AAS Winner, F for staff favorites]()
Pepper Seeds - Hot - Anaheim Chili
70-90 Days to maturity (from transplant). Capsicum annuum. Anaheim Chili Pepper Seeds. Non-GMO, annual, open-pollinated, heirloom, deer resistant, heat tolerant, drought tolerant, hot-type pepper with mild heat levels. 500 to...
Pepper Seeds - Sweet - Purple Beauty
70 Days to maturity (from transplant). Capsicum annuum. Purple Beauty Pepper Seeds. Non-GMO, annual, open-pollinated, heirloom, high-yielding, drought tolerant, sweet pepper with no heat. 0 Scoville Heat Units. Resistant to...
Squash Seeds - Winter - Burgess Buttercup
Non-GMO Burgess Buttercup is ready in 100 days and recommended by Utah State. This winter squash has a thick, orange, and creamy flesh that tastes like sweet potatoes once cooked....
Pepper Seeds - Hot - Serrano Tampiqueno
70 to 80 Days to maturity (from transplant). Capsicum annuum. Serrano Tampiqueno Pepper Seeds. Non-GMO, annual, open-pollinated, heirloom, high yielding, deer resistant, heat tolerant, drought tolerant, hot-type pepper with medium...
Cucumber Seeds - Straight Eight (Organic)
55-65 Days to maturity. Cucumis sativus. Organic Straight Eight Cucumber Seeds. Non-GMO, annual, organic, open-pollinated, heirloom, 1935 AAS-winning, slicing cucumber. Suitable for growing in fields, containers (with support), garden plots,...
Tomato Seeds - Slicing - Oregon Spring
58 Days to maturity (from transplant). Solanum lycoperscium. Oregon Spring Tomato Seeds. Non-GMO, annual, open-pollinated, heirloom, determinate, slicing tomato. Suitable for growing in containers, garden plots, raised beds, greenhouses. Resistant...
Bean Seeds - Pole - Oriental Yard Long
85 Days to maturity. Vigna unguiculata subsp. sesquipedalis. Oriental Yard Long Pole Bean Seeds. Non-GMO, annual, open-pollinated, heirloom, heat-tolerant, pole, snap, Asian, specialty bean. Suitable for growing in containers, garden...
Bean Seeds - Bush - Pinto
90-95 Days to maturity. Phaseolus vulgaris. Pinto Bean Seeds. Non-GMO, annual, open-pollinated, heirloom, bush, shelling bean. Suitable for growing in containers, garden plots, raised beds, and greenhouses. Pinto Beans are...
Corn Seeds - Sweet - Stowells Evergreen
95 Days to maturity. Zea mays. Stowells Evergreen Corn Seeds. Non-GMO, annual, open-pollinated, heirloom, Sweet Corn. Suitable for growing in garden plots or raised beds. Corn tolerates heat and drought-prone...
Artichoke Seeds - Green Globe
110-150 days. Artichoke Gardening Seeds. Cynara cardunculus var. scolymus. Perennial. Heirloom. Non-GMO. Native to the Mediterranean, Green Globe Artichoke seeds have been grown for decades and their fruits are eaten...
Squash Seeds - Summer - Crookneck (Organic)
Ready in about 58 days, Organic Summer Crookneck Squash is perfect for the summer garden. Bumpy skin highlights a yellow fleshy squash. When the fruit is 5-6 inches long, it...
Melon Seeds - Honeydew - Green Flesh
105 Days to maturity. Cucumis melo. Green Flesh Honeydew Melon Seeds. A non-GMO, annual, open-pollinated, heirloom, heat-tolerant Honeydew Melon. Suitable for growing in containers, garden plots, raised beds, and greenhouses....
Basil Seeds - Thai
60-90 days. Non-GMO, Open-pollinated, Heirloom Thai Basil Herb Seed from True Leaf Market. Ocimum basilicum var. thyrsiflora is native to various Asian regions, such as India and Iran. As basil...
Tomato Seeds - Cherry - Sunsugar Hybrid
62 Days to maturity (from transplant). Solanum lycoperscium. Sunsugar Hybrid Tomato Seeds. Non-GMO, annual, F1 hybrid, indeterminate, cherry tomato. Suitable for growing in garden plots, raised beds, greenhouses, and containers....
Corn Seeds - Flint - Hopi Blue
100 Days to maturity. Zea mays. Blue Hopi Corn Seeds. Non-GMO, annual, open-pollinated, heirloom, Flint and Flour Corn. Suitable for growing in garden plots or raised beds. Corn tolerates heat...
Tomato Seeds - Slicing - Big Beef Hybrid
73 Days to maturity (from transplant). Solanum lycopersicum. Big Beef Hybrid Tomato Seeds. Non-GMO, annual, F1 hybrid, AAS winner 1994, heat tolerant, drought tolerant, indeterminate, slicing tomato. Suitable for growing...
Pepper Seeds - Hot - Jalapeno M
70-80 Days to maturity (from transplant). Capsicum annuum. Jalapeno M Pepper Seeds. Non-GMO, annual, heirloom, open-pollinated, hot-type pepper with medium heat levels. 2,500 to 5,000 Scoville Heat Units. Suitable for...
Bean Seeds - Pole - Winged Bean
80-100 Days to maturity. Psophocarpus tetragonolobus. Winged Bean Seeds. Non-GMO, annual, heirloom, open-pollinated, heat-tolerant, pole, snap, Asian, specialty bean. Suitable for growing in containers, garden plots, raised beds, and greenhouses....
Watermelon Seeds - Picnic - Jubilee
90-97 Days to maturity. Citrullus lanatus. Jubilee Watermelon Seeds. Non-GMO, annual, open-pollinated, heirloom, heat tolerant, seeded, picnic watermelon. Suitable for growing in garden plots. These large picnic varieties can grow...
Petunia Seeds - Madness Series (pelleted)
98-105 Days to maturity. Petunia x hybrida. Pelleted Madness Series Petunia Seeds. Non-GMO, hybrid, Premium Quality Seeds, annual. Madness Series petunia seeds are an easy way to splash some early-blooming...
Pepper Seeds - Sweet - Horizon Orange
75 Days to maturity (from transplant). Capsicum annuum. Horizon Orange Pepper Seeds. Non-GMO, annual, open-pollinated, heirloom, sweet-type, with no heat levels. 0 Scoville Heat Units. Suitable for growing in garden...
Pepper Seeds - Sweet - Red Cherry Sweet
85 Days to maturity (from transplant). Capsicum annuum. Red Cherry Sweet Pepper Seeds. Non-GMO, annual, open-pollinated, heirloom, high-yielding, drought tolerant, sweet pepper with mild heat levels. 0 to 100 Scoville...
Pepper Seeds - Sweet - Sunset Italian Mix (Organic)
70-100 Days to maturity (from transplant). Capsicum annuum. Organic Sunset Italian Pepper Mix Pepper Seeds. Non-GMO, annual, organic, open-pollinated, heirloom, sweet pepper with mild heat levels. 0 to 100 Scoville...
Pumpkin Seeds - Jack Be Little
95 days. Cucurbita pepo. Jack Be Little Pumpkin seeds are upright tender annuals and a favorite when it comes to miniature holiday pumpkins. Jack Be Littles produce 3-4" wide and...
Petunia Seeds - Daddy Series (Pelleted)
98-105 days. Daddy Series petunia seeds grow an adorable, compact, and vibrant addition to any home, office, or garden. Daddy Series petunias are durable and easy to grow from seed,...
Tomato Seeds - Cherry - Sweetie
65-70 Days to maturity (from transplant). Solanum lycoperscium. Sweetie Tomato Seeds. Non-GMO, annual, open-pollinated, heirloom, indeterminate, cherry tomato. Suitable for growing in garden plots, raised beds, and greenhouses. Widely considered...
Cucumber Seeds - Marketmore 76 (Organic)
67 days. The Marketmore 76 cucumber is a variety of cucumber that is sweet and tender. The Marketmore 76 is dark green and smooth, and grows to be between eight...
Pepper Seeds - Sweet - Keystone Resistant Giant
70 Days to maturity (from transplant). Capsicum annuum. Keystone Resistant Giant Pepper Seeds. Non-GMO, annual, open-pollinated, heirloom, sweet pepper with no heat. 0 Scoville Heat Units. Suitable for growing in...
Corn Seeds - Sweet - (su) Early Sunglow Hybrid
62 Days to maturity. Zea mays. Early Sunglow Hybrid Corn Seeds. Non-GMO, annual, hybrid, Sweet Corn. Suitable for growing in garden plots or raised beds. Corn tolerates heat and drought-prone...
Pepper Seeds - Sweet - Pepperoncini Italian
65-75 Days to maturity (from transplant). Capsicum annuum. Pepperoncini Italian Pepper Seeds. Non-GMO, annual, open-pollinated, heirloom, high-yielding, drought tolerant, sweet pepper with mild heat levels. 100 to 500 Scoville Heat...
Pumpkin Seeds - Howden
Non-GMO, Heirloom Howden Pumpkin Seeds. 115 days. Uniform 15 to 25 pound, deep round, symmetrical fruits with a thick, hard, rich-orange shell and extra-thick flesh for fine Jack O' Lanterns....
Roselle Seeds - Asian Sour Leaf (Hibiscus)
70-90 day maturity. Hibiscus sabdariffa. Asian Sour Leaf Roselle Seeds. Non-GMO, Cool-season perennial heirloom. This unique perennial can be grown as an annual in areas where it will not survive...
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