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]()
Cardoon Seeds
60-75 days. Cynara cardunculus. Cardoon Seeds. Non-GMO, perennial, heirloom, open-pollinated. This crop is suitable for garden plots, raised beds, and ornamental borders. Cardoon is a tall, architectural relative of the...
Watermelon Seeds - Icebox - Yellow Petite
65-78 Days to maturity. Citrullus lanatus Yellow Petite watermelon seeds. Non-GMO, annual, open-pollinated, heirloom, heat tolerant, seeded, mini watermelon. Petite Yellow watermelon is perfect for those with a short growing...
Celosia Seeds - Crested - Armor Mix
85-95 Days to maturity. Celosia plumosa. Prestige Scarlet Crested Celosia Flower Seeds. Non-GMO, Annual. These striking and vigorous bedding plants are ideal for hot summer gardens. They display showy cockscomb...
Tobacco Seeds - Piloto Cubano
~65 Days from transplant to maturity. Nicotiana tabacum. Piloto Cubano Tobacco Seeds. Non-GMO, annual, open-pollinated, heirloom. Suitable for growing in fields, containers, garden plots, raised beds, and greenhouses. Resistant to...
Phlox Seeds - 21st Century Mix (coated)
70-85 Days to maturity. Phlox drummondii. Phlox 21st Century Mix Seeds. Non-GMO, Annual. 1st Century Mix phlox seeds are an adorable, compact, and vibrant addition to grow in your garden....
Cauliflower Seeds - Song TJS-65 - Hybrid
55-60 Days in Spring, 65-70 Days in Fall to maturity Brassica oleracea var. botrytis. Cauliflower Seeds - Song TJS-65. Annual, Hybrid. This is a non-GMO seed that has a yellowish...
Eggplant Seeds - White Egg
White Egg variety eggplant plants produce fruits that look like actual eggs. Each eggplant is 2-3 inches wide and long, and has a smooth white exterior. Plants produce productive yields,...
Tomato Seeds - Slicing - Phoenix Hybrid
70 Days to maturity (from transplant). Solanum lycopersicum. Phoenix Hybrid Tomato Seeds. Non-GMO, annual, F1 hybrid, determinate, heat tolerant, slicing tomato. Suitable for growing in garden plots, raised beds, and...
Zinnia Seeds - Cut and Come Again (Organic)
60-70 Days to Maturity. Zinnia elegans. Organic Cut and Come Again Zinnia Flower Seeds. Non-GMO, organic, heirloom, open-pollinated flowers. Annual in zones 3, 4, 5, 6, 7, 8, 9, and...
Stock Flower Seeds - Harmony Mix
77-84 Days to maturity. Matthiola incana. Harmony Mix Stock Seeds. Non-GMO, annual, open-pollinated, cold tolerant. Harmony Mix Stock seeds grow fantastically compact and exceptionally fragrant stock flowers that are sure...
Okra Seeds - Star of David - Organic
Organic Star of David Okra Seeds. 60 - 75 days to maturity. Abelmoschus esculentus. Heirloom, Non-GMO, Annual. An Israeli variety, Star of David grows 8 to 10 feet tall stalks....
Basil Seeds - Lime
Non-GMO, Heirloom Lime Basil Herb Seed from True Leaf Market. Ocimum americanum. As basil has many different types, Lime Basil is a sweet cultivar that grows round bright-green leaves with...
Tomato Seeds - Salad - Indigo Rose
75-80 Days to maturity (from transplant). Solanum lycopersicum. Indigo Rose Tomato Seeds (PVP 201100302). Non-GMO, annual, open-pollinated, heirloom, indeterminate, salad tomato. Suitable for growing in garden plots, raised beds, and...
Melon Seeds - Cantaloupe - Tuscany
78 Days to maturity. Cucumis melo. Tuscany Cantaloupe Melon Seeds. A non-GMO, annual, open-pollinated, heirloom, heat-tolerant Cantaloupe Melon. Suitable for growing in garden plots, raised beds, and greenhouses. The Tuscany...
Tomato Seeds - Slicing - Floradade
74 Days to maturity (from transplant). Solanum lycoperscium. Floradade Tomato Seeds. Non-GMO, annual, open-pollinated, heirloom, determinate, heat tolerant, slicing tomato. Suitable for growing in garden plots, raised beds, and greenhouses....
Tomato Seeds - Slicing - Husky Red Hybrid
78 Days to maturity (from transplant). Solanum lycopersicum. Husky Red Hybrid Tomato Seeds. Non-GMO, warm season annual, F1 hybrid, potato leaf, indeterminate, slicing tomato. Suitable for growing in garden plots,...
Tomato Seeds - Slicing - Black From Tula
75-85 Days to maturity (from transplant). Solanum lycopersicum. Variety name Tomato Seeds. Non-GMO, annual, open-pollinated, heirloom, indeterminate, slicing tomato. Suitable for growing in garden plots, raised beds, and greenhouses. Produces...
Grass Mix - Cabin Grass Seed
Cabin Grass Seed Mix - AKA: Green Space Holder, Dryland Turf Mix, Erosion Turf Mix. This Cabin Grass Seed Mix is a blend of two low growing, very deep rooted...
Tomato Seeds - Cherry - Baxter's Early Bush
72 Days to maturity (from transplant). Solanum lycoperscium.Tomato - Baxters Early Bush Cherry Tomato Seeds. Non-GMO, annual, open-pollinated, heirloom, determinate, cherry tomato. Suitable for growing in garden plots, raised beds,...
Tomato Seeds - Slicing - Mountain Pride Hybrid
70 Days to maturity (from transplant). Solanum lycoperscium. Mountain Pride Hybrid Tomato Seeds. Non-GMO, annual, hybrid, determinate, slicing tomato. Suitable for growing in garden plots, raised beds, and greenhouses. Resistant...
Wildflower Seeds - Cutting Mix (Organic)
50-90 Days to maturity. Cosmos bipinnatus, Lobularia maritima, Zinnia elegans, Centaurea cyanus, and Helianthus annuus. Organic Cut Flower Mix Seeds. Non-GMO, Organic, Annuals. The Organic Cut Flower Mix offers a...
Tomato Seeds - Slicing - Best Boy Bush Hybrid
75 Days to maturity (from transplant). Solanum lycopersicum. Best Boy Bush Hybrid Tomato Seeds. Non-GMO, annual, F1 hybrid, determinate, slicing tomato. Suitable for growing in garden plots, raised beds, greenhouses,...
Tomato Seeds - Slicing - Paul Robeson
74 Days to maturity (from transplant). Solanum lycopersicum. Paul Robeson Tomato Seeds. Non-GMO, warm season annual, open-pollinated, heirloom, indeterminate, slicing tomato. Suitable for growing in garden plots, raised beds, greenhouses,...
Sunflower Seeds - Earthwalker
75-85 Days to maturity. Helianthus annuus ’Earthwalker’. Earthwalker Sunflower Seeds: Non-GMO, open-pollinated, ornamental, annual, drought-tolerant, heat-tolerant, multi-branching sunflower. Earthwalker sunflower seeds grow deeply colored and complement any outdoor space. These...
Tomato Seeds - Cherry - Cherry Orange
75-80 Days to maturity (from transplant). Solanum lycoperscium. Cherry Orange Tomato Seeds. Non-GMO, annual, open-pollinated, heirloom, indeterminate, cherry tomato. Suitable for growing in garden plots, raised beds, and greenhouses. This...
Gourd Seeds - Nam Tao Yai - Hybrid
70-75 Days to maturity. Lagenaria siceraria. Warm-season annual hybrid. Nam Tao Yai Hybrid Seeds. This high-yielding variety is also known as White-flowered gourd, Upo, or Opo and has vigorous, multi-branched...
Kale Seeds - Garden Blend
Garden Blend Kale Seeds. 70 - 80 days to maturity. Brassica oleracea. Open-pollinated. Annual. Everyone wants to grow the best of the best in garden performance. Kale Garden Blend's component...
Parsley Seeds - Double Curled
75 Days to maturity. Petroselinum crispum. Double Curled Parsley Seeds. Non-GMO, annual, open-pollinated, heirloom. Suitable for growing in fields, containers, garden plots, raised beds, and greenhouses. Double Curled Parsley is...
Zinnia Seeds - Peppermint Stick
55-70 Days to maturity. Zinnia elegans. Peppermint Stick Mixture Zinnia Seeds. Non-GMO, open-pollinated, annual. Peppermint Stick Mix Zinnia Flower seeds are the most unique, candy-striped zinnia ever! They offer prolific...
China Aster Seeds - Colour Carpet Mix
60-90 Days to maturity. Callistephus chinensis. Colour Carpet China Aster Seeds. Non-GMO, ornamental, annual, open-pollinated flower. Colour Carpet China Aster flower garden seeds grow an adorable dwarfed aster plant ideal...
Tomato Seeds - Salad - Green Zebra
75-90 Days to maturity (from transplant). Solanum lycoperscium. Green Zebra Tomato Seeds. Non-GMO, annual, open-pollinated, heirloom, heat tolerant, indeterminate, salad tomato. Suitable for growing in garden plots, raised beds, and...
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