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]()
Basil Seeds - Italian Large Leaf
60-90 days. Italian Large Leaf basil seeds. Ocimum basilicum. Non-GMO. Open Pollinated. Giant green shiny leaves full of seasonal aroma that just makes your mouth water, Italian Large Leaf is...
Pea Seeds - Snap - Sugar Snap
60-70 Days to maturity. Pisum sativum. Sugar Snap Pea seeds. Non-GMO, open-pollinated, 1979 AAS winner. Suitable for growing in fields, containers, garden plots, raised beds, and greenhouses. Resistant to powdery...
Bean Seeds - Bush - Blue Lake 274
50-65 Days to maturity. Phaseolus vulgaris. Blue Lake 247 Bean Seeds. Non-GMO, annual, open-pollinated, heirloom snap bush bean. Suitable for growing in containers, garden plots, raised beds, and greenhouses. Blue...
Cabbage Seeds - Golden Acre
65 days. The Golden Acre cabbage is a crop that can be grown in climate zones three through twelve, and is resistant to yellowing diseases. This hardy plant produces heads...
Broccoli Seeds - Waltham 29 (Organic)
85-90 days. Organic Waltham 29 Broccoli Seeds. Brassica oleracea var. italica. Annual. Non-GMO. Developed at the University of Massachusetts Amherst's historic research farm, Waltham Field Station, Organic Waltham 29 broccoli...
Squash Seeds - Winter - Waltham Butternut
85-90 days. Cucurbita moschata. Waltham Butternut Winter Squash seeds grow as cool season tender annuals that are fast-maturing. As the summer season fades, butternut squash varieties are the most popular...
Tomato Seeds - Paste - Roma VF
75-80 Days to maturity (from transplant). Solanum lycoperscium. Roma VF Tomato Seeds. Non-GMO, annual, open-pollinated, heirloom, determinate, paste tomato. Suitable for growing in garden plots, raised beds, and greenhouses. Resistant...
Bean Seeds - Pole - Blue Lake FM1K
65 Days to maturity. Phaseolus vulgaris . Blue Lake Pole FM1K Bean Seeds. Non-GMO, annual, open-pollinated, heirloom, high-yielding, drought-tolerant, pole, snap bean. Suitable for growing in containers, garden plots, raised...
Emergency Heirloom Bug Out Seed Bag
Emergency Seed Assortment of Annuals and Perennials. Non-GMO. Heirloom. Open Pollinated. Bug Out Seed Bag delivers 34 of the easiest and most prolific fruit and vegetable seeds for emergency preparedness...
Mini Microgreens Growing Kits (Organic)
These single serve mini microgreens kits are a fun and inexpensive way to start growing microgreens for sandwiches, salads and garnishes. Choose from Radish, Arugula, Sunflower, Red Streaks Mizuna Mustard,...
Pumpkin Seeds - Sugar Pie
85-100 days. Sugar Pie Pumpkin Seeds. Cucurbita pepo. Non-GMO. Heirloom. Also widely known as the New England pumpkin, the Sugar Pie is a true American heirloom and culinary standard. Non-GMO...
Pepper Seeds - Sweet - Cal Wonder (Organic)
75-90 Days to maturity (from transplant). Capsicum annuum. Organic Cal Wonder Pepper Seeds. Non-GMO, annual, organic, open-pollinated, heirloom, drought tolerant, sweet pepper with no heat. 0 Scoville Heat Units. Resistant...
Tomato Seeds - Cherry - Large Red Cherry
75-80 Days to maturity (from transplant). Solanum lycoperscium. Large Red Cherry Tomato Seeds. Non-GMO, annual, open-pollinated, heirloom, indeterminate, cherry tomato. Suitable for growing in garden plots, raised beds, and greenhouses....
Spinach Seeds - Bloomsdale Long Standing (Organic)
35-50 days. Organic Bloomsdale Long Standing Spinach Seeds. Spinacia oleracea. Non-GMO. Heirloom. Organic Bloomsdale Long Standing Spinach provides bright flavor with tender leaves, as this annual is a popular variety...
Red Clover - Organic - Sprouting Seeds
4-6 Days. Trifolium pratense. Organic. Sprouting. High Germination. Non-GMO Organic red clover sprouting seeds grow one of the most flavorful and diverse crops anywhere. Traditionally grown as both an ornamental...
Carrot Seeds - Danvers 126
65-70 days. Danvers 126 Carrot Seeds. Daucus carota subsp. sativus. Non-GMO. Heirloom. Danvers carrot seeds is a hardy 19th century American garden heirloom grown for its rugged tolerance to heavy,...
Onion Seeds - Bunching - Tokyo Long White
60-90 Days to maturity. Allium fistulosum. Tokyo Long White Onion Seeds. Non-GMO, perennial, open-pollinated, heirloom, cold tolerant, drought tolerant, bunching onion. Suitable for growing in greenhouses, garden plots, raised beds,...
Cilantro Seeds - Slow Bolt
Non-GMO, Heirloom Slow Bolt Cilantro Herb Garden Seed from True Leaf Market. Coriandrum sativum. Cilantro is native to regions in North Africa and West Asia. As a cool-season herb dating...
Radish - Daikon Minowase (Organic) - Sprouting Seeds
5-6 Days to Harvest. Raphanus sativus var. longipinnatus. Organic Daikon Minowase Radish Sprouting Seeds. Organic. Non-GMO. Sprouting. High Germination. Organic Daikon radish seeds sprout one of the most unmistakably flavorful...
Asparagus Seeds - Mary Washington
2-3 years. Asparagus Gardening Seeds. Asparagus officinalis. Perennial. Non-GMO. Open Pollinated. Mary Washington Asparagus seeds can be grown into a hardy vegetable and are fairly easy to grow as a...
Corn Seeds - Sweet - Golden Bantam 12
80-85 Days to maturity. Zea mays. Golden Bantam 12Corn Seeds. Non-GMO, annual, open-pollinated, heirloom, Sweet Corn. Suitable for growing in garden plots or raised beds. Corn tolerates heat and drought-prone...
Pepper Seeds - Sweet - Cal Wonder
75-90 Days to maturity (from transplant). Capsicum annuum. California Wonder Pepper Seeds. Non-GMO, annual, open-pollinated, heirloom, high-yielding, drought tolerant, sweet pepper with no heat. 0 Scoville Heat Units. Also known...
Swiss Chard - Ruby Red - Microgreens Seeds
11-21 days. A mild delicate spinach flavor and amazing red stem color. Makes an excellent choice to add to any micro mix for earthy flavor and striking color. Select a...
Lettuce Seeds - Romaine - Parris Island Cos
65-70 days. The Parris Island Cos lettuce is a Romaine lettuce, which means it is among the most nutritious of lettuce varieties. These non-GMO seeds grow upright into tall heads...
Radish - Rambo - Microgreens Seeds
6-10 days. Rambo radish is another striking radish that boasts the same wonderful dark cotyledons as Sango radish. The rosy stems and bright floral flavor add both a tasty and...
Okra Seeds - Clemson Spineless
50-70 days. Clemson Spineless Okra Seeds. Abelmoschus esculentus. Non-GMO. Heirloom. Also known as Clemson Spineless 80. Clemson Spineless okra debutedas the 1939 All-America Selections Vegetable Winner is a highly popular...
Onion Seeds - Long - Utah Yellow Sweet Spanish
110-115 Days to maturity. Allium cepa. Utah Yellow Sweet Spanish Onion Seeds. Non-GMO, annual, open-pollinated, heirloom, cold tolerant, bulbing, long-day onion. Suitable for growing in greenhouses, garden plots, raised beds,...
Parsley Seeds - Dark Green Italian Flat-leaf
Petroselinum crispum Annual. 72 days. Non-GMO, Heirloom Dark Green Italian Flat Leaf Parsley Herb Garden Seed from True Leaf Market. Petroselinum crispum. Italian Parsley plants are hardy biennials often grown...
Brussels Sprouts Seeds - Long Island Improved
90-100 days. Long Island Improved Brussels sprouts seeds. Brassica oleracea var. gemmifera. Non-GMO. Brussels Sprouts can be grown in colder climates, and the crop is very tolerant of frost. While...
Squash Seeds - Summer - Crookneck
50-60 days. Crookneck Summer Squash Seeds. Cucurbita pepo. Non-GMO. Open Pollinated. Non-GMO Summer Crookneck squash is ready in about 58 days. The flesh of this squash is bumpy and yellow....
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