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]()
French Marigold Seeds - Durango Series (Coated)
56-63 Days to maturity. Tagetes patula. Durango Series French Marigold Seeds. Non-GMO, annual, open-pollinated. Durango Series French marigold seeds are an adorable, compact, and vibrant addition to grow in any...
Wildflower Seeds - Bee Mix
50-365 Days to maturity. Bee Friendly Wildflower Seeds Mix. A non-GMO mix of annuals and perennial bee-friendly wildflowers for zones 3-9. The Bee Friendly Wildflower Mix grows some of the...
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...
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....
Zinnia Seeds - Profusion Series (Coated)
54-70 Days to maturity. Zinnia elegans x angustifolia. Profusion Series Zinnia Seeds. Non-GMO, organic, annual. Profusion Series Zinnia flower seeds promise to turn your tired summer bedding into an award-winning...
Zinnia Seeds - Magellan Series (Coated)
55-60 Days to maturity. Zinnia elegans. Magellan Series Zinnia Seeds. Non-GMO, organic, F1 hybrid, annual. Magellan Zinnia Series seeds produce tough, resilient zinnias, best suited for gardens prone to heat...
French Marigold Seeds - Disco Series (Coated)
56-63 Days to maturity. Tagetes patula. Disco Series French Marigold Seeds. Non-GMO, annual, open-pollinated. Disco Series French marigold seeds are an adorable, compact, and vibrant addition to grow in any...
French Marigold Seeds - Bonanza Series (Coated)
56-63 Days to maturity. Tagetes patula. Bonanza Series French Marigold Seeds. Non-GMO, annual, open-pollinated. Bonanza Series French marigold seeds are brilliant, easy to grow, and renowned for their hardiness and...
French Marigold Seeds - Janie Series
56-63 Days to maturity. Tagetes patula. Janie Series Marigold Seeds. Non-GMO, annual, open-pollinated. Growing Janie Series Marigold seeds this season is an effortless and award-winning way to dash some summer...
Nasturtium Seeds - Empress of India
Empress of India Nasturtium Flower Seeds. Edible Flowers. Annual Flower. Mix with a salad of baby greens or use as a garnish. The dark leaves set off the dazzling, long-spurred...
Marigold Seeds - Nematode Control
60-70 Days to maturity. Tagetes patula. Nematode Control Marigold Seeds. Non-GMO, annual, open-pollinated. This drought-tolerant and deer-resistant marigold is an outstanding tool in any gardener’s tool belt. As a specially...
Marigold (Signata) Seeds - Gem Series
63-77 days. Gem Series signata seeds promise a stunning and exotic twist to the traditional marigold popularly grown in the United States. Gem Series seeds grow tidy 9-12" dwarfed mounds...
Calendula Seeds - Fancy Mix
50-70 Days to maturity. Calendula officinalis. Fancy Mix Calendula Seeds. Non-GMO, open-pollinated, annual, ornamental herb and flower. Fancy Mix Calendulas are hardy, tolerant of cool temperatures, and produce some strikingly...
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...
Zinnia Seeds - Magellan Series - Orange
55-60 Days to maturity. Zinnia elegans. Magellan Orange Zinnia Seeds. Non-GMO, organic, F1 hybrid, annual. Magellan Zinnia Orange seeds grow tough and resilient zinnias, best suited for gardens prone to...
Thunbergia Seeds - Alata Mix
56-63 days maturity. Thunbergia alata. Thunbergia Alata Mix Seeds. Non-GMO, Annual or Perennial. Ornamental. Thunbergia Alata Mix seeds are an essential plant for your garden, home, or patio for nearly...
California Poppy Seeds - Ballerina Mix
50-60 Days to maturity. Eschscholzia californica. Ballerina Mix California Poppy Seeds. Non-GMO, annual. Ballerina Mix California poppies are colorful and hardy. Perfect for mass plantings and low-maintenance gardens, these delightful...
Zinnia Seeds - Thumbelina Mix (Organic)
60-70 Days to maturity. Zinnia elegans. Thumbelina Mix Zinnia Seeds. Non-GMO, organic, annual. These All-American Selections winner Thumbelina Mix Zinnia flower seeds are a small, adorable, and vibrant addition to...
Carrot Seeds - Thumbelina
60-70 Days to Maturity. Daucus carota var. sativus. Thumbelina Carrot Vegetable Seeds. Non-GMO, annual, open-pollinated, heirloom, 1992 AAS winning carrot. This golf ball-sized round carrot is very sweet and thin-skinned....
Gourd Seeds - Small Warted Mix
60+ Days to maturity. Cucurbita sp. Small Warted Mixed Gourd Vegetable Seeds. Non-GMO, annual, open-pollinated gourd seeds. A collection of different shapes and colors of ornamentals gourds, mostly under 1...
Sunflower Seeds - Santa Fe Sunset
75 Days to maturity. Helianthus annuus. Santa Fe Sunset Sunflower Seeds: Non-GMO. Hybrid. Ornamental. Annual. Santa Fe Sunset F1 hybrid is full-faced brown-headed sunflower excellent for sun-filled gardens! This pollen-less...
Swiss Chard Seeds - Oriole Orange
60 Days to maturity. Beta vulgaris var. cicla. Oriole Orange Swiss Chard Vegetable Seeds. Non-GMO, annual, open-pollinated, swiss chard. Grow in garden plots, raised beds, containers (at least 12 inches),...
California Poppy Seeds - Carmine King
60-75 Days to Maturity. Eschscholzia californica. Carmine King California Poppy Flower Seeds. Non-GMO, hybrid, annual flower in zones 3, 4, 5, 6, 7, 8, 9, and 10. Deer resistant. Attracts...
Melon Seeds - Cantaloupe - Minnesota Midget (Organic)
65-70 Days to maturity. Cucumis melo. Minnesota Midget Cantaloupe Vegetable Seeds. Non-GMO, annual, organic, open-pollinated, heirloom cantaloupe seeds. This variety of cantaloupe is a small melon with a sweet taste....
Wildflower Seeds - Backyard Bird Lover's Mix
60-90 Days to maturity. Backyard Bird Lover’s Wildflower Mix Flower Seeds. Non-GMO, open-pollinated. A mix of annuals, perennials, and biennials for zones 3, 4, 5, 6, 7, 8, and 9....
French Marigold Seeds - Sparky Mixture
63-77 Days to maturity. Tagetes patula. Sparky Mixture Marigold Seeds. Non-GMO, annual, open-pollinated. Sparky Mixture French marigold seeds offer one of the most vibrant and inexpensive blooms available to the...
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...
Calendula Seeds - Fiesta Gitana
60-70 Days to maturity. Calendula officinalis ’Fiesta Gitana’. Fiesta Gitana Calendula Seeds. Non-GMO, open-pollinated, heirloom, annual, also known as pot marigold. This one-of-a-kind dwarf marigold, known as Fiesta Gitana, is...
Sunflower Seeds - Midnight Rouge
55-65 Days to maturity. Helianthus annuus ’Midnight Rouge’. Midnight Rouge Sunflower Seeds. Non-GMO, annual, open pollinated, heirloom, ornamental. Midnight Rouge seeds produce some of the most deeply colored and stunning...
Zinnia Seeds - Red Beauty - Organic
60-70 Days to maturity. Zinnia elegans. Red Beauty Zinnia Seeds. Non-GMO, organic, annual. These zinnias are a perfect choice for any grower or hobby gardener looking for the best cut...
Zinnia Seeds - Crystal Series
50 " 55 days. Annual. Zinnia angustifolia. Crystal Series Zinnia flower seeds promise a simple, yet award-winning addition to your home or garden. Crystal Series Zinnia seeds grow a compact...
California Poppy Seeds (Organic)
56-70 Days to maturity. Eschscholzia californica. Organic California Poppy Seeds. Non-GMO, open-pollinated, heirloom, organic, drought-tolerant annual flower. Short-lived perennial in zones 8-10. California poppy seeds promise a touch of coastal...
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