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]()
Bean Seeds - Bush - Henderson Lima
65-85 Days to maturity. Phaseolus lunatus. Henderson Lima Bean Seeds. Non-GMO, annual, open-pollinated, heirloom, high-yielding, heat-tolerant, drought-tolerant, bush, shell, lima bean. Suitable for growing in containers, garden plots, raised beds,...
Squash Seeds - Winter - Sweet Meat
Non-GMO Sweet Meat Winter Squash is ready in 100 days. USU recommends this variety of winter squash due to the fact it's vigorous, heavy-yielding vines. Fruit on Gill's Sweet Meat...
Cucumber Seeds - Muncher Burpless (Organic)
65-70 days. Muncher Cucumber Seeds Organic. Cucumis sativus. Non-GMO. Heirloom. One of the most reliably productive and tolerant grows on the farm or in the home garden, Muncher cucumber has...
Melon Seeds - Cantaloupe - Imperial 45
65-85 Days to maturity. Cucumis melo. Imperial 45 Cantaloupe Melon Seeds. A non-GMO, annual, open-pollinated, heirloom, AAS winner, heat-tolerant Cantaloupe Melon. Suitable for growing in garden plots, raised beds, and...
Cucumber Seeds - Homemade Pickles
Non-GMO, open-pollinated Homemade Pickles Cucumber Seeds from True Leaf Market yield a pickling-variety of cucumber with small white spines and crunchy cores. Growing on up to 5' disease-resistant vines, the...
Bean - Bush - Broad Windsor Fava - Cover Crop...
80-90 Days. Vicia faba. Annual. Cover Crop. Heirloom. Non-GMO Broad Windsor fava bean seeds grow one of the most beneficial heirloom cover crops available to the home gardener. Popularly sown...
Nasturtium Seeds - Alaska
54-63 Days to maturity. Tropaeolum majus. Nasturtium Alaska Mix Seeds. Non-GMO, annual, heirloom. Alaska nasturtium is brilliant, easy to grow from seed, and perfectly suited for many dry and temperate...
Coco Coir Netted Seed Starter Pellets - Unamended
Minute Soil netted expanding coconut coir seed starter pellets are made from pure, unamended, sustainable, renewable coconut coir. Dried, compressed, and netted germination plugs, just add water for soil and...
Bean Seeds - Bush - Provider
50-65 Days to maturity. Phaseolus vulgaris. Provider Bush Bean Seeds. Non-GMO, annual, open-pollinated, heirloom, high-yielding, heat-tolerant, bush, snap, green bean. Suitable for growing in containers, garden plots, raised beds, and...
Pumpkin Seeds - Big Max
Big Max Pumpkins are known for their size. This is the pumpkin to grow if you want to have an enormous pumpkin. Big Max Pumpkins can weigh over 100 lbs...
Red Cabbage Microgreens Seeds
Red Cabbage Microgreens Seeds. Fast and easy to grow cabbage micro greens seeds with whitish stems and green cotyledons with red to purple highlights. Premium seeds with high germination rates....
Oat Seeds - Hulless - Organic
Avena NudaHulless Oat Spring Planted. 15-16% Protein Level (that is higher than corn) Oats grow quick in cool, moist conditions. Used for hay or the oats themselves. Hulless oats are...
Leek Seeds - American Flag Leek - Organic
Allium ampeloprasum (105 days) Originated around 1870. Also called "Giant Musselburh" or "Scotch Flag." Leeks date back to the time of the Ancient Egyptians. Their popularity has grown through many...
Sorrel Seeds - Red Veined
Red Veined Sorrel Seeds. Non-GMO, Heirloom. 55 Days. Perennial. Rumex sanguineus. AKA: Spinach Dock or Narrow-leaved Dock. Tart leaves have lemony taste that some have likend to the flavor of...
Lettuce Seeds - Romaine - Freckles
50-70 days. These non-GMO Freckles lettuce seeds grow into green leaves of lettuce with red spots that are ready to harvest in 50 to 70 days. The Freckles thrives in...
Lentil - Green (Organic) - Sprouting Seeds
2-3 Days to Harvest. Lens culinaris. Organic Green Lentil Sprouting Seeds. Organic. Non-GMO. Sprouting. High Germination. Non-GMO Organic green lentil sprouting seeds is a simple and delicious way to enhance...
Tobacco Seeds - Burley 21
~65–70 Days from transplant to maturity. Nicotiana tabacum. Burley 21 Tobacco Seeds. Non-GMO, annual, open-pollinated, heirloom. Suitable for growing in fields, containers, garden plots, raised beds, and greenhouses. Resistant to...
Bean Seeds - Bush - Strike
50-65 Days to maturity. Phaseolus vulgaris. Strike Bush Bean Seeds. Non-GMO, annual, open-pollinated, heirloom, high-yielding, bush, snap, green bean. Suitable for growing in containers, garden plots, raised beds, and greenhouses....
Cabbage Seeds - Late Flat Dutch
100 days. The Late Flat Dutch cabbage produces large, pale green heads. It is a hardy garden crop that can be grown in climate zones one through ten. After around...
Cilantro Seeds - Leisure Splits (Organic)
Non-GMO, Heirloom Organic Leisure Splits Cilantro Herb Garden Seed from True Leaf Market. Coriandrum sativum. Cilantro is native to regions in North Africa and West Asia. Leisure Splits Cilantro, also...
FloraGro Hydroponic Microgreens Nutrients
FloraGro is a liquid fertilizer ideal for hydroponic growing methods to supply young plants, including microgreens, with nutrients needed for foliar growth. It is formulated with an NPK ratio of...
Kale Seeds - Premier
60 days. Premier Kale is a high yielding variety high in nutrients. This crop is leafy and green in color. Premier Kale is versatile and can be used for kale...
Einkorn Grain Seeds (Organic)
Domesticated Einkorn Grain Seeds. Certified Organic by Oregon Tilth. Triticum monococcum. Non-GMO, Heirloom. Widely agreed to be the oldest known wheat, Einkorn is thought to be the first grain ever...
Thyme Seeds - Winter
95 Days to maturity. Thymus vulgaris. Winter Thyme Seeds. Non-GMO, perennial, open-pollinated, heirloom. Suitable for growing in fields, containers, garden plots, raised beds, and greenhouses. Common Thyme, German Thyme, English...
Melon Seeds - Cantaloupe - Hearts of Gold
80-90 Days to maturity. Cucumis melo. Hearts of Gold Cantaloupe Melon Seeds. A non-GMO, annual, open-pollinated, heirloom, heat-tolerant Cantaloupe Melon. Suitable for growing in garden plots, raised beds, and greenhouses....
Bean Seeds - Bush - Roma II
50-65 Days to maturity. Phaseolus vulgaris. Roma II Bush Bean Seeds. Non-GMO, annual, open-pollinated, heirloom, AAS winner, high-yielding, heat-tolerant, bush, snap, romano, green bean. Suitable for growing in containers, garden...
French Marigold Seeds - Petite Mixture
56-63 Days to maturity. Tagetes patula. Petite Mixture French Marigold Seeds. Non-GMO, annual, open-pollinated. Petite Mixture French marigold seeds are an adorable, compact, and vibrant addition to grow in any...
Parsley Seeds - Italian Giant (Organic)
70-80 Days to maturity. Petroselinum crispum. Organic Italian Giant Parsley Seeds. Non-GMO, annual, organic, open-pollinated, heirloom. Suitable for growing in fields, containers, garden plots, raised beds, and greenhouses. Italian Giant...
Granny's Garden Heirloom Seeds Collection
Granny's Garden Heirloom Seeds is handpicked of some of the most classic and nostalgic heirloom fruits and vegetables found in grandma's garden. Featuring 15 of the most revered crops, this...
Radish Seeds - Watermelon
60-65 days. Watermelon Radish Seeds. Raphanus sativus. Non-GMO. Heirloom. AKA: "Roseheart Radish" or "Red Meat Radish". Watermelon Radish seeds are native to China and a cousin to Daikon radish. Watermelon...
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