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]()
Perlite Soil Amendment
Pure horticultural grade perlite. Granule size about one-eighth of an inch. Perlite is made from all-natural volcanic rock that is heated under pressure until it explodes like popcorn, leaving a...
Fenugreek Seeds - Microgreens
Fenugreek seeds. 30 Days. Annual, Open Pollinated. Trigonella foenum-graecum. Fenugreek can be used grown as a mature herb or microgreen. Fenugreek seeds are popularly used in spice mixes and teas....
Basil Seeds - Sweet (Organic) - Microgreens
Organic Sweet Basil Seeds. 85 Days. Annual. Ocimum basilicum. Non-GMO, Certified Organic by Oregon Tilth. Sweet basil is similar to genovese basil but with an extra hint of sweetness with...
Marigold Microgreens Seeds - Minuta, Edible
7-10 days. Minuta edible Marigold microgreen seeds are one of many flowering seeds that can be enjoyed within days of germination. Minuta Marigold seeds sprout light pink stems and wide...
Shungiku (3 Color Daisy) Seeds- Microgreens
Glebionis carinata. Non-GMO. Shungiku (AKA, Three Color Daisy, Tri Color Daisy) can be grown as an edible flower, salad greens or especially as a microgreen. As a micro it has...
Sunflower - Red Storm - Microgreens Seeds
Red Storm sunflower microgreen seeds grow exotic red sunflower microgreens that boast all the same flavors and simplicity as traditional Black Oil sunflower sprouts. Try red microgreens sunflower shoots alongside...
Pea - Microgreens Seeds
6-14 Days to maturity. Pisum sativum. Pea Microgreen Seeds. Pea microgreens are grown differently than most other microgreens but are well worth the change of pace. While they are different,...
Leek Seeds - Carentan - Microgreens
Carentan leeks are an excellent addition to dishes that need an extra oniony zest. This European plant has high yields. Tender white stems grow 8.5 inches long and 2 inches...
Lupine Seeds - Sweet Lupine - Moonshine
10-14 Days to Harvest. Lupine luteus. Moonshine Sweet Lupine Microgreens Seeds. Non-GMO, flower microgreens, high germination, unique appearance. Lupine microgreens can easily grow indoors, requiring minimal space and time. With...
Retain - Water Retention Soil Additive
Retain plant crystals are a safe and easy-to-use soil additive made out of water-absorbing ingredients (cross-linked polyacrylate, bentonite clay, lava rock, and silicates) that absorb up to 40x its own...
Chinese Mahogany Seeds - Microgreens
Toona sinensis. Non-GMO. This fast growing deciduous tree, that makes a savory, exotic and unique microgreen. Yes, this is a tree, grown and harvested as a microgreen! Harvested just after...
Pea Seeds - Afila Tendril - Microgreens (Organic)
Certified Organic by Oregon Tilth - Afila Tendril Pea Microgreens Seeds - Pisum sativum. Non-GMO. Produces microgreens pea shoots with an abundance of curly tendrils. Tendril Peas are a choice...
Green Mustard Microgreens Seeds
Green Mustard Microgreens Seeds. Brassica juncea. Non-GMO. Light green in color spicy mustard greens flavor. Can be grown as microgreens (harvest in 8 to 12 days) or seed more sparsely...
Sage Herb Seeds - Organic Microgreens Seeds
Salvia officinalis. Perennial. 75 days. Use grey-green leaves and young stem tips for flavoring poultry, stuffings, meats, sausages, chowders and sauces. Ht. 1 to 2 ft. Select a Different Use...
Spinach - Winter Giant - Microgreens Seeds
Winter Giant Spinach Seeds. 50 Days to full maturity. Heirloom, Open Pollinated, and Non-GMO Seeds. Spinacia oleracea. AKA: Giant Winter Spinach. Giant Winter Spinach was selected as a late fall/early...
Vermiculite Soil Amendment
Horticultural grade vermiculite. Very fine coarseness (granules slightly larger than sand). Vermiculite is a silicate of magnesium-aluminum-iron that is treated at high temperatures which causes it to expand. It is...
Minute Soil+ Cube - Amended Compressed Coco Coir
Minute Soil Plus Grow Cubes are self-contained plastic planter bags with amended coconut coir fiber fortified with Nitrogen, Phosphorus and Potassium (NPK) to support early seedling growth. Just add water...
Salad Burnet Herb Seeds - Microgreens
Salad Burnet Herb Garden Seeds. 70 to 100 Days. Sanguisorba minor. Non-GMO, Heirloom, Open Pollinated. Perennial in USDA zones 4 to 8, but can be grown as an annual. Makes...
Amaranth Seeds - All Red Leaf - Microgreens Seeds
10 Days to Harvest. Amaranthus cruentus. All Red Leaf Amaranth Microgreens Seeds. Organic. Non-GMO. Microgreens. High Germination. Amaranth is a pseudo-grain that can be grown as sprouts or microgreens, ground...
Borage Seeds (Organic) - Microgreens Seeds
10-20 Days to maturity. Borago officinalis. Organic Borage Microgreen Seeds. Non-GMO, organic, open-pollinated, heirloom, annual herb and microgreens seeds. These underutilized microgreens are striking with their vibrant green leaves and...
Nasturtium - Whirlybird Mix - Microgreens Seeds
Whirlybird Mix Nasturtium microgreens seeds. Edible Flowers. Whirlybird microgreens have medium green leaves with some of the wavy edges rimmed with maroon. The pretty stems are a mix of green...
Corn Salad Seeds - French - Microgreens
French Corn Salad Microgreens Seeds. Non-GMO, Heirloom Seeds. Valerianella olitoria. AKA: Lamb's Lettuce, Mache. Corn salad has green leaves with a nutty flavor that makes a fantastic addition to salads....
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