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 - Leaf - Ruby Red
Non-GMO Ruby Red Leaf Lettuce is ready in 35-45 days. Lettuce forms compact plants with loose, crumpled reddish-green leaves. Ruby Red is the darkest red of all red lettuces, won't...
Dahlia Seeds - Figaro Series (Coated)
84-91 Days to maturity. Dahlia pinnata. Dahlia Figaro Series Seeds. Premium, Non-GMO, Annual or Perennial. Figaro Series dahlias are a simple way to grow classic southwestern color in your home,...
Tomato Seeds - Cherry - Isis Candy
67 Days to maturity (from transplant). Solanum lycoperscium. Isis Candy Tomato Seeds. Non-GMO, annual, open-pollinated, heirloom, indeterminate, cherry tomato. Suitable for growing in garden plots, raised beds, greenhouses, containers, and...
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...
Pepper Seeds - Sweet - Shishito
60-69 Days to maturity (from transplant). Capsicum annuum. Shishito Pepper Seeds. Non-GMO, annual, open-pollinated, heirloom, high-yielding, sweet-type pepper with little to mild heat levels. 100 to 1,000 Scoville Heat Units....
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...
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...
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...
Squash Seeds - Summer - Cocozelle Zucchini
50-60 Days to maturity. Cucurbita pepo. Cocozelle Zucchini Seeds. Non-GMO, annual, open-pollinated, heirloom. Suitable for growing in garden plots, raised beds, and containers. A traditional Italian heirloom introduced in the...
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...
Cucumber Seeds - Tendergreen Burpless (Organic)
65 Days to maturity. Cucumis sativus. Organic Tendergreen Burpless Cucumber Seeds. Non-GMO, annual, organic, open-pollinated, heirloom, monoecious, burpless, slicing cucumber. Suitable for growing in fields, containers (with support), garden plots,...
Bean Seeds - Bush - Top Notch Golden Wax
53 Days to maturity. Phaseolus vulgaris. Top Notch Golden Wax Bush Bean Seeds. Non-GMO, annual, organic, hybrid, open-pollinated, heirloom, AAS winner, high yielding, deer resistant, heat tolerant, drought tolerant, bush/pole,...
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,...
Zucchini Seeds - Cocozelle - Organic
(48 days) Introduced prior to 1885. An Italian heirloom still widely grown today. Bush type squash with long cylindrical, dark green, zucchini. Organic Cocozelle Zucchini Squash Seeds Cocozelle has very...
Basil Seeds - Green Leaf Holy Basil
65-75 days maturity. Ocimum sanctum. Green Leaf Holy Basil Seeds. Non-GMO, Heirloom. Annual. Holy basil is an essential herb in the Thai kitchen due to its unique flavor. It is...
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...
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...
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...
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...
Nasturtium Seeds - Alaska
54-63 Days to maturity. Tropaeolum majus. Nasturtium Alaska Seeds. Non-GMO, annual, heirloom. Alaska nasturtium is brilliant, easy to grow from seed, and perfectly suited for many dry and temperate climates....
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...
Molokhia - Egyptian Spinach Seeds
60 Days to maturity. Corchorus olitorius. Egyptian Spinach Molokhia Seeds. Warm-season annual heirloom. Egyptian Spinach Molokhia, also called jute leaf, is not a true spinach. It is grown for the...
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...
Corn Seeds - Sweet - Silver Queen Hybrid
88 Days to maturity. Zea mays. Silver Queen Hybrid Sweet Corn Seeds. Non-GMO, annual, hybrid, Sweet Corn. Suitable for growing in garden plots or raised beds. Corn tolerates heat and...
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...
Sunflower Seeds - Autumn Beauty Mix
90-100 Days to maturity. Helianthus annuus. Autumn Beauty Mix Sunflower Seeds: Non-GMO. Open Pollinated. Ornamental. Annual. Heirloom. Autumn Beauty Mix seeds grow one of the summer's most explosive and familiar...
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