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]()
Corn Salad (Mache) Seeds - Dutch Broad Leaved
50 days. Forms rosettes of smooth, spoon-shaped leaves coveted by fine chefs. Prized as early spring green. Fairly hardy this green can be mulched with straw to overwinter in cold...
Broccoli Seeds - Green Sprouting Calabrese
brassica oleracea var. capitata (60-90 days) Start Green Sprouting broccoli early in the season and by early summer you will have tons of sweet broccoli. Harvest the central head then...
Beet Seeds - Sugar Beet
Beta vulgaris (90 days) Sugar beets are a natural source of sugar and where most of the sugar industry derives its sugar from these days. Beets are up to 1...
Rutabaga Seeds - American Purple Top
90 days. Brassica napus var. napobrassica. American Purple Top Rutabaga Seeds. Non-GMO, annual, heirloom, open-pollinated. This crop is suitable for garden plots, fields, raised beds, and containers. American Purple Top...
Broccoli Seeds - Di Cicco (Organic)
48 to 70 days. Annual. Organic Heirloom seeds. Di Cicco is an Italian heirloom broccoli dating back from 1890. Very vigorous plants produce heavy crops of 3 to 4 inch...
No-Till Forage Friendly Cover Crop Mix
30-60 Days to termination. No-Till Forage Friendly Cover Crop Seeds. Non-GMO, annual, winter-killing, no-till, and forage-friendly. This mix has been created as a forage-safe option for home gardens, small farms,...
Beet Seeds - Chioggia
55 Days. Beta vulgaris. Annual. Open-pollinated. Pronounced "key-oh-jah" after the small Venetian villa town, non-GMO Chioggia beet seeds are a classic Italian garden heirloom grown and sold throughout the Mediterranean...
Swiss Chard Seeds - Bright Lights
55 days. AAS Winner for 1998. A vibrant new Swiss Chard. Distinguished by stems of many different colors - gold, pink, orange, purple, red, and white. This variety is a...
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...
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...
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...
Lettuce Seeds - Romaine - Giant Caesar
Giant Caesar Lettuce Seeds. 70 days to maturity. Lactuca sativa. Heirloom, Annual. The Giant Caesar Lettuce is an amazing bright green loose-leaf romaine type that has a buttery sweet flavor...
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...
Bean - Broad Windsor Fava - Cover Crop Seeds
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...
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...
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...
Swiss Chard Seeds - Ruby Red
55 days. This plant produces good yields of dark green shiny leaves with ruby red stalks and veins. Both the stems and the leaves xcellent for salads and steamed with...
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...
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...
Gazania Seeds - New Day Series
84-91 Days to maturity. Gazania splendens. Gazania New Day Series Seeds. Non-GMO, Annual. New Day Series gazania seeds grow some of the most recognizable summertime blooms both indoors and out!...
Cabbage Seeds - Savoy Perfection
90 days. The Savoy Perfection cabbage is a unique variety that doesn't produce the sulfur-like smell that other varieties of cabbage do when they are cooked. It is a hardy...
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...
Lettuce Seeds - Leaf - Oakleaf
Non-GMO Oakleaf lettuce is ready 55-65 days. Utah State University recommends this lettuce strain. The Oakleaf can tolerate colder temperatures. The leaves of the Oakleaf have a mildly sweet flavor,...
Lettuce Seeds - Leaf - Salad Bowl Green
45-50 days. An AAS winner, these non-GMO Salad Bowl Green seeds grow into green leaves of lettuce that are ready to harvest in 45 to 50 days. The Salad Bowl...
Cabbage Seeds - Early Round Dutch
Brassica oleracea (75 days) Also called "Round Dutch Cabbage" Early round Dutch has solid uniform, oval heads that weigh 2-5 lbs. Small, short-stemmed, short core, good wrapper leaves and slow...
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...
Achillea Seeds - Golden Yarrow
2nd year maturity. Achillea filipendulina. Golden Yarrow Seeds. Non-GMO, perennial, heirloom, open-pollinated. This crop is suitable for garden plots, raised beds, and ornamental borders. Golden Yarrow (Cloth of Gold) is...
Spinach Seeds - Red Malabar
70 days. Basella rubra. Red Malabar Spinach Seeds. Non-GMO, warm-season annual, heirloom, open-pollinated. This crop is suitable for trellised garden plots, raised beds, and large containers. Red Malabar is a...
Onion Seeds - Long - Ruby
100 Days to maturity. Allium cepa. Ruby Onion Seeds. Non-GMO, annual, open-pollinated, heirloom, cold tolerant, bulbing, long-day onion. Suitable for growing in greenhouses, garden plots, raised beds, and containers. Ruby...
Parsnip - Hollow Crown
Non-GMO, Open-Pollinated, Heirloom Hollow Crown Parsnip Seeds from True Leaf Market. 100 to 120 days. Good storage variety with a sweet taste that grows up to 15" long. Originating in...
Portulaca Seeds - Double Mix
84-91 Days to maturity. Portulaca grandiflora. Double Mix Portulaca Seeds. Non-GMO, annual. Double Mix portulaca seeds promise some of the most stunning, and most convenient succulents available to home gardeners....
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