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]()
Squash Seeds - Winter - Vegetable Spaghetti
80-100 days. Vegetable Spaghetti Winter Squash Seeds. Cucurbita pepo. Non-GMO. Open Pollinated. Grow your own pasta replacement with Vegetable Spaghetti Winter squash seeds. This spaghetti squash is ready in just...
Nasturtium Seeds - Jewel Mix
54-63 Days to maturity. Tropaeolum majus. Organic Nasturtium Jewel Mix Seeds. Non-GMO, annual, heirloom. Jewel Mix nasturtium is brilliant, easy to grow from seed, and perfectly suited for many dry...
Melon Seeds - Cantaloupe - Hales Best Jumbo (Organic)
85-110 Days to maturity. Cucumis melo. Hale's Best Jumbo Cantaloupe Melon Seeds. A non-GMO, annual, heirloom, open-pollinated, organic, heat-tolerant, drought-tolerant Cantaloupe Melon. Suitable for growing in garden plots, raised beds,...
Bean Seeds - Bush - Contender
50-65 Days to maturity. Phaseolus vulgaris. Contender Bush Bean Seeds. Non-GMO, annual, open-pollinated, heirloom, high yielding, heat tolerant, bush, snap, stringless bean. Suitable for growing in containers, garden plots, raised...
Pepper Seeds - Hot - Jalapeno (Organic)
Organic, heirloom, Non-GMO Jalapeno pepper seeds are a great hot pepper to start due to their ease and versatility. The heat is between 2,000 and 8,000 Scoville Units. Hot peppers...
Cucumber Seeds - Straight Eight
55-60 days. Straight Eight Cucumber Seeds. Cucumis sativus. Non-GMO. Heirloom. Nearly a century-old American heirloom, the Straight Eight is an award-winning slicing cucumber known for its uniformly straight 8 inch...
Spearmint Seeds
50-70 Days to maturity. Mentha spicata. Spearmint Seeds. Non-GMO, perennial, open-pollinated, heirloom. Suitable for growing in fields, containers, garden plots, raised beds, and greenhouses. Enjoy the vibrant, fruity aroma of...
Tomato Seeds - Salad - Early Girl Hybrid
60 Days to maturity (from transplant). Solanum lycoperscium. Early Girl Hybrid Tomato Seeds. Non-GMO, annual, hybrid, heat tolerant, drought tolerant, indeterminate, salad. Suitable for growing in garden plots, raised beds,...
Eggplant Seeds - Black Beauty
74 days. The Black Beauty variety of eggplant is ideal for eggplant parmesan or stuffed eggplant dishes. The Black Beauty reaches maturity in seventy four days and is suitable for...
Basil Seeds - Genovese
60-90 days. Genovese basil seeds. Ocimum basilicum. Non-GMO. Open Pollinated. Genovese is a sweet basil heirloom native to the Italian provinces of Genoa, Savona, and Imperia; while locals are decided...
Pepper Seeds - Hot - Jalapeno Early
60-83 Days to maturity (from transplant). Non-GMO, Early Jalapeno Pepper Seeds from True Leaf Market grow 3" hot peppers that can be harvested when they're either dark green or bright...
Cucumber Seeds - Tendergreen Burpless
65 Days to maturity. Cucumis sativus. Tendergreen Burpless Cucumber Seeds. Non-GMO, annual, open-pollinated, heirloom, monoecious, burpless, slicing cucumber. Suitable for growing in fields, containers (with support), garden plots, raised beds,...
Pepper Seeds - Sweet - Yolo Wonder L
75-80 days. Yolo Wonder L Sweet Pepper Seeds. Capsicum annuum. Heirloom. Non-GMO. Classic bell pepper shape, size, and flavor, Yolo Wonder L sweet pepper seeds are a summer favorite both...
Calendula Seeds - Pacific Beauty Mixture
98-105 Days to maturity. Calendula officinalis. Pacific Beauty Mixture Calendula Seeds. Non-GMO, Open-pollinated. Annual. Pacific Beauty Mix calendula seeds are a tidy and vibrant addition to grow in any home...
Pepper Seeds - Hot - Cayenne Long Slim
70-79 Days to maturity (from transplant). Capsicum annuum. Cayenne Long Slim Pepper Seeds. Non-GMO, annual, open-pollinated, heirloom, deer resistant, heat tolerant, drought tolerant, hot pepper with hot heat levels. 30,000...
Beet - Microgreens Seeds
12-23 days. Beet microgreens have beautiful variegated stems and leaves with an earthy, almost sweet flavor. Beet microgreens are easy to grow from seed in soil. Hydroponic mediums aren't suitable...
Corn Seeds - Sweet - Ambrosia Hybrid
80-90 Days to maturity. Zea mays. Ambrosia Hybrid Corn Seeds. Non-GMO, annual, hybrid, Sweet Corn. Suitable for growing in garden plots or raised beds. Corn tolerates heat and drought-prone regions....
Arugula Seeds - Slow Bolt
40-45 days. Eruca vesicaria sativa. Non-GMO. Herb. Annual. Non-GMO Slow Bolt arugula seeds are one of the fastest-growing crops available to home gardeners and, since they are slower to bolt,...
Squash Seeds - Winter - Waltham Butternut (Organic)
110 days to maturity. Cucurbita moschata. Organic Waltham Butternut Winter Squash Seeds. Non-GMO, annual, heirloom, open-pollinated, AAS winner. Suitable for growing in fields, garden plots, raised beds, and containers. The...
Pepper Seeds - Sweet - Emerald Giant
77 Days to maturity (from transplant). Capsicum annuum. Emerald Giant 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 - Vegetable Spaghetti (Organic)
80-100 days. Organic Vegetable Spaghetti Winter Squash Seeds. Cucurbita pepo. Non-GMO. Open Pollinated. Grow your own pasta replacement with Organic Vegetable Spaghetti Winter squash seeds. This spaghetti squash is ready...
Moringa Seeds
160-170 Days to maturity. Moringa oleifera. Moringa Seeds. Non-GMO, Perennial, Deciduous Softwood Tree. Moringa is also known as the Drumstick Tree, Horseradish Tree, and Ben Oil Tree. It is enjoyed...
Geranium Seeds - Pinto Premium Series
91-105 days maturity. Pelargonium x hortorum . Geranium Pinto Premium Series Seeds. Non-GMO, Annual. Ornamental. Pinto Premium Series geranium seeds promise some of the most classic yet eye-catching blooms available...
Pumpkin Seeds - Jack O Lantern
90-110 days. Jack O Lantern Pumpkin Seeds. Cucurbita pepo. Open Pollinated. Non-GMO. Producing bright orange 10-12 lb pumpkins a piece, Jack O Lantern pumpkins are the ideal seeds for Halloween...
Petunia Seeds - Dreams Series (pelleted)
98-105 Days to maturity. Petunia x hybrida. Dream Series Petunia Seeds. Non-GMO, hybrid, Premium Quality Seeds, annual. Dreams Series petunia seeds are an essential and timeless flower in your garden,...
Cucumber Seeds - Ashley
65 days. The Ashley cucumber is a large variety of cucumber that is sweet and tender. The Ashley is green and smooth, and grows to be seven to eight inches...
Pumpkin Seeds - Jarrahdale
Cucurbita maxima (100 days) A New Zealand heirloom, Jarrahdale pumpkin has a slate blue, ribbed exterior and a deep delicious orange interior flesh. The flesh is dry, string less, sweet...
Cucumber Seeds - Diva Hybrid
58 days. The Diva Hybrid cucumber is an early variety of cucumber that is sweet and tender. The Diva Hybrid is dark and semi glossy, and grows to be between...
French Marigold Seeds - Sparky Mixture
63-77 Days to maturity. Tagetes patula. Sparky Mixture Marigold Seeds. Non-GMO, annual, open-pollinated. Sparky Mixture French marigold seeds offer one of the most vibrant and inexpensive blooms available to the...
Squash Seeds - Winter - Table Queen Acorn
80-85 days. Table Queen Acorn Winter Squash seeds grow as warm season annuals and are part of the diverse Cucurbitaeae family. Acorn squash can be planted year round in temperate...
Cucumber Seeds - Lemon
65 Days to maturity. Cucumis sativus. Lemon Cucumber Seeds. Non-GMO, annual, open-pollinated, heirloom, monoecious, slicing or pickling cucumber. Suitable for growing in fields, containers (with support), garden plots, raised beds,...
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