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]()
Lettuce Seeds - Little Gem - Organic
Lactuca sativa . (50 days) Little Gem lettuce is a tiny single serving size lettuce with rich dark green Organic leaves and a sweet, buttery flavor. Non-astringent flavor makes them...
Beet Seeds - Cylindra
55 days. The Cylindra beet is a variety of beet that originated in Denmark. Their long, cylindrical shape makes them ideal for anyone who wants a larger yield of beets...
Rhubarb Seeds - Victoria
Non-GMO Victoria Rhubarb Seeds are a perennial heirloom that you want to include in your garden. An open-pollinated strain, Victoria Rhubarb can be raised from seed. Juicy, large stalks are...
Kale Seeds - Red Russian (Organic)
50 days. Brassica napus var. pabularia. Organic Red Russian Kale Seeds. Non-GMO, annual, organic, heirloom, open-pollinated. This is suitable for containers, garden plots, raised beds, and fields. Classic “Ragged Jack/Buda”...
Spinach Seeds - Green Vines Supreme Malabar
60 days. Basella alba. Green Vines Supreme Malabar Spinach Seeds. Non-GMO, warm-season annual/perennial, heirloom, open-pollinated. This crop is suitable for trellised garden plots, raised beds, and large containers. This spinach...
Wildflower Seeds - Low Growing Mix
Annual and perennial mix. Low Growing Mix wildflower seeds grow a classic, vibrant yet modest spin on traditional wildflower mixes. Low Growing Mix seeds are a unique blend of small...
Celeriac Seeds - Giant Prague
110-120 Days to maturity. Apium graveolens. Giant Prague Celeriac Seeds. Non-GMO, Biennial, open-pollinated, heirloom. AKA ‘Large Smooth Prague’ Celeriac. Hardier and more disease resistant than traditional celery. Giant Prague Celeriac...
Onion Seeds - Bunching - Flagpole (Organic)
60-80 Days to maturity. Allium fistulosum. Organic Flagpole Scallion Onion Seeds. Non-GMO, perennial, organic, open-pollinated, heirloom, cold tolerant, bunching onion. Suitable for growing in greenhouses, garden plots, and raised beds....
Dill Seeds - Mammoth (Organic)
55-75 Days to maturity. Anethum graveolens. Organic Mammoth Dill Seeds. Non-GMO, annual, organic, open-pollinated, heirloom. Suitable for growing in fields, containers, garden plots, and raised beds. Mammoth Dill offers garden-fresh,...
Grow and Store Garden Seeds 21 Variety
21 varieties of vegetable garden seeds. Specially dried and sealed for long term emergency seed storage. Shelf life up to 10 years. Seeds should be a key component of any...
Bachelors Buttons Seeds - Mixed Colors
77-91 days. Bachelor's Buttons Flower Seeds. AKA: Cornflower. Annual. Mixed Colors Bachelor's Buttons flower seeds are a convenient and easy summertime grow perfect for kids, indoors, or wild unkept spaces....
Asparagus Seeds - UC 157 F2
3 years to first harvest, annual harvest. Non-GMO, Hybrid. Perennial. This variety was developed at the University of California, Riverside in 1978 by Frank Southers and Frank Takatori. This hybrid...
Broccoli Seeds - Destiny Hybrid
70 to 75 days. Annual. Non-GMO Hybrid seeds. The Destiny Hybrid is a popular variety of the broccoli garden crop to grow. Destiny Hybrid seeds are more tolerant to heat...
Viola Seeds - Johnny Jump Up
65-80 Days to maturity. Viola tricolor. Johnny Jump Up Viola Seeds. Non-GMO, open-pollinated, Premium Quality Seeds, perennial. Johnny Jump Up viola seeds are a vibrant and compact addition to your...
Onion Seeds - Bunching - Warrior AAS
60 Days to maturity. Allium fistulosum. Warrior Bunching Onion Seeds. Non-GMO, perennial, open-pollinated, AAS Regional winner (Southeast, Mountain/Southwest), bunching onion. Suitable for growing in greenhouses, garden plots, raised beds, and...
Broccoli Seeds - Di Cicco
Brassica oleracea (50-70 days) Di Cicco is an Italian heirloom broccoli dating from 1890. Di Cicco broccoli is very vigorous, emerald green, producing nice central heads 3-5" wide. Approx. 9,000...
Cauliflower Seeds - Cheddar Hybrid
70-75 days. This beautiful orange cauliflower boasts uniform, smooth, firm heads. Leave heads untied for maximum color intensity. Roasting enhances the flavor of cheddar cauliflower. In warm growing areas, plant...
Alyssum Seeds - Royal Carpet
56-63 Days to maturity. Lobularia maritima. Royal Carpet Alyssum Seeds. Non-GMO, Open-Pollinated, Annual. Open-pollinated seeds. Royal Carpet Alyssum flower seeds are an essential fragrant and award-winning plant whether kept in...
Mustard Seeds - Red Giant (Organic)
48 days. Non-GMO, Heirloom Organic Red Giant Mustard Herb Garden Seed from True Leaf Market. Brassica juncea. In general, mustard is an ideal garden plant to grow near herbs. As...
Cauliflower Seeds - Self-Blanche
52 days. Large, close-jacket leaves make blanching easy. Deep, smooth, fine-grained heads. This is great for freezing and pickling; a low-calorie, nutritious snack that can be refrigerated and eaten raw...
Mustard Seeds - Tatsoi
50 days. Non-GMO, Heirloom Tatsoi Mustard Herb Garden Seed from True Leaf Market. Brassica rapa subsp. narinosa. Tatsoi Mustard or "Spoon Mustard" comes from China and gained tradition as a...
Lettuce Seeds - Jericho
(26 days for baby greens, 56 days for full size) Jericho Lettuce Seeds. Silky smooth neon green romaine leaves reach for the sky in this amazing lettuce with origins in...
Onion Seeds - Short - Yellow Granex PRR Hybrid
110-160 Days to maturity. Allium cepa. Yellow Granex PRR Onion Seeds. Non-GMO, annual, hybrid, cold tolerant, bulbing, short-day onion. Suitable for growing in greenhouses, garden plots, raised beds, and containers....
Bean Seeds - Bush - Aquadulce Fava
70-85 Days to maturity. Vicia faba. Organic Fava Bean Seeds. Non-GMO, annual, organic, open-pollinated, heirloom, bush, shell, fava bean. Suitable for growing in containers, garden plots, raised beds, and greenhouses....
Lettuce Seeds - Leaf - Lollo Rosso
50-70 days. These non-GMO Lollo Rosso lettuce seeds grow into green leaves with red edges that are ready to harvest in 60 days. The Lollo Rosso thrives in full sun...
Spinach Seeds - New Zealand
Non-GMO New Zealand Spinach is an excellent option for warmer gardens because you get a longer growing season. Not spinach, but a more heat-tolerant substitute for spinach. Similar taste to...
Pak Choi Seeds - Extra Dwarf
Cabbage Seeds - Pak Choi - Extra Dwarf. Heirloom, Non-GMO. Annual. Brassica rapa (Chinensis group). 30 days. Cool-warm season. This specialty pak choi variety is smaller than baby pak choi....
Calendula Seeds - Bon Bon Series
91-98 Days to maturity. Calendula officinalis. Bon Bon Series Calendula Seeds. Non-GMO, Ornamental, Annual. Bon Bon Series seeds grow one of the most celebrated, lush, and brilliant blooms of any...
Lettuce Seeds, Crisphead - Webbs Wonderful
Non-GMO Webbs Wonderful Crisphead is an English lettuce that does well in the heat. Very large and robust heads with crumpled leaves, Webbs Wonderful has a fine distinct flavor and...
Turnip Seeds - White Egg
Brassica rapa (45-55 days) AKA "Early White Egg" or "Snowball". White egg turnip is a long time favorite in the South where it is know for its reliability and fine...
Kohlrabi Seeds - Purple Vienna (Organic)
50-55 days. Brassica oleracea var. gongylodes. Organic Purple Vienna Kohlrabi Seeds. Non-GMO, annual, organic, heirloom, open-pollinated. This crop is suitable for containers, garden plots, raised beds, and fields. Classic purple-skinned...
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