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 - Romaine - Parris Island Cos
65-70 days. The Parris Island Cos lettuce is a Romaine lettuce, which means it is among the most nutritious of lettuce varieties. These non-GMO seeds grow upright into tall heads...
Carrot Seeds - Rainbow Blend
65-75 days. The Rainbow Blend Carrot is an excellent way to get lots of colors in the garden all at once! This kaleidoscope of carrots is a colorful mixture of...
Squash Seeds - Summer - Early Prolific Straightneck
50-60 days. Early Prolific Straightneck Summer Squash Seeds. Cucurbita pepo. Non-GMO. Open Pollinated. Non-GMO Early Prolific Staightneck Summer Squash is ready to harvest from the vine after 52 days. Early...
Corn Seeds - Sweet - Peaches and Cream Hybrid
80-90 Days to maturity. Zea mays. Peaches and Cream Hybrid Corn Seeds. Non-GMO, annual, hybrid, Sweet Corn. Suitable for growing in garden plots or raised beds. Corn tolerates heat and...
Turnip Seeds - Purple Top White Globe
50-60 days. Purple Top White Globe Turnip Seeds. Brassica rapa subsp. rapa. Non-GMO. Open Pollinated. Purple Top White Globe Turnip seeds grow into cool season root vegetables that are hardy...
Arugula Seeds - Slow Bolt (Organic)
40-45 days. Organic Slow Bolt Arugula herb Seeds. Eruca vesicaria sativa. Non-GMO. Organic Slow Bolt arugula seeds are one of the fastest growing crops for home gardeners and, since they...
Celery Seeds - Utah 52-70
100 days. Utah 52-70 Celery Seeds. Apium graveolens var. dulce. Non-GMO. Heirloom. The Utah 52-70 is a variety of celery seed that is ideal for short seasons, as it can...
Watermelon Seeds - Picnic - Crimson Sweet
80-90 Days to maturity. Citrullus lanatus. Crimson Sweet Watermelon Seeds. Non-GMO, annual, open-pollinated, heirloom, heat tolerant, seeded, picnic watermelon. Resistant to Anthracnose (1,3), Fusarium Wilt (Race 1,2). Crimson Sweet watermelon...
Cauliflower Seeds - Snowball Y Improved
70-80 days to maturity. Brassica oleracea var. botrytis. Snowball Y Improved Cauliflower Seeds. Non-GMO, heirloom, open-pollinated, annual. This is suitable for growing in garden plots, raised beds, containers, and fields....
Lettuce Seeds - Butterhead - Buttercrunch (Organic)
AAS Winner. 65 days. Recommended by Utah State University, Organic Buttercrunch is the most popular of the butterhead varieties. Approx. 16,000 seeds/oz. These non-GMO Buttercrunch seeds grow into vibrant, green...
Beet Seeds - Detroit Dark Red (Organic)
55 days. Organic Detroit Dark Red beet seeds. Beta vulgaris. Non-GMO. Organic. Since the turn of the century, Organic Detroit Dark Red has been the preferred choice for homegrown classic...
Watermelon Seeds - Picnic - Crimson Sweet (Organic)
80-90 Days to maturity. Citrullus lanatus. Crimson Sweet Organic Watermelon Seeds. Non-GMO, annual, organic, open-pollinated, heirloom, heat tolerant, seeded, picnic watermelon. Resistant to Anthracnose (1,3), Fusarium Wilt (Race 1,2). Organic...
Onion Seeds - Bunching - Evergreen White Nebuka (Organic)
65-120 Days to maturity. Allium fistulosum. Organic Evergreen White Nebuka Onion Seeds. Non-GMO, perennial, organic, open-pollinated, heirloom, cold tolerant, bunching onion. Suitable for growing in greenhouses, garden plots, raised beds,...
Leek Seeds - Large American Flag
90-130 days. Large American Flag Leek Seeds. Allium ampeloprasum. Non-GMO. Open Pollinated. Large American Flag seeds produce leeks with large stems and leaves. This hardy crop can tolerate cold climates...
Melon Seeds - Cantaloupe - Hales Best Jumbo
85-110 Days to maturity. Cucumis melo. Hale's Best Jumbo Cantaloupe Melon Seeds. A non-GMO, annual, heirloom, open-pollinated, heat-tolerant, drought-tolerant Cantaloupe Melon. Suitable for growing in garden plots, raised beds, and...
Tomato Seeds - Cherry - Sungold Hybrid
57 Days to maturity (from transplant). Solanum lycoperscium. Sungold Hybrid Tomato Seeds. Non-GMO, annual, F1 hybrid, indeterminate, cherry tomato. Suitable for growing in garden plots, raised beds, greenhouses, containers, and...
Pepper Seeds - Hot - TAM Jalapeno
65-80 Days to maturity (from transplant). Capsicum annuum. Tam Jalapeno Pepper Seeds. Non-GMO, annual, open-pollinated, heirloom, deer resistant, heat tolerant, drought tolerant, hot-type pepper with medium heat levels. 1,000 to...
Radish Seeds - Cherry Belle
21-28 days. Cherry Belle Radish Seeds. Raphanus sativus. Non-GMO. Heirloom. Visually stunning, uniform, and quick to maturity in about 25 days, Cherry Belle radish is one of the most reliable...
Watermelon Seeds - Mini - Sugar Baby
75-80 Days to maturity. Citrullus lanatus. Sugar Baby Watermelon Seeds. Non-GMO, annual, open-pollinated, heirloom, heat tolerant, seeded, mini watermelon. Suitable for growing in garden plots and large containers (minimum 7...
Pepper Seeds - Sweet - Golden Cal Wonder
72 Days to maturity (from transplant). Capsicum annuum. Golden Cal Wonder Pepper Seeds. Non-GMO, annual, open-pollinated, heirloom, high-yielding, drought tolerant, sweet-type, with no heat levels. 0 Scoville Heat Units. Suitable...
Tomato Seeds - Salad - Better Boy Plus Hybrid
70 Days to maturity (from transplant). Solanum lycoperscium. Better Boy Tomato Seeds. Non-GMO, annual, hybrid, heat tolerant, indeterminate, salad tomato. Suitable for growing in garden plots, raised beds, and greenhouses....
Pepper Seeds - Sweet - Sweet Banana
70 Days to maturity (from transplant). Capsicum annuum. Sweet Banana Pepper Seeds. Non-GMO, annual, open-pollinated, heirloom, sweet pepper with mild heat levels. Drought tolerant, heat tolerant. 0 to 500 Scoville...
Radish Seeds - Daikon Minowase
Raphanus sativus (45 days) AKA Japanese Minowase Daikon Radish. Daikon is a root vegetable reported to have originated in the Mediterranean and brought to China for cultivation around 500 B.C....
Squash Seeds - Winter - Vegetable Spaghetti
80-100 days. Vegetable Spaghetti Winter Squash Seeds. Cucurbita pepo. Non-GMO. Open Pollinated. Grow your own pasta replacement with Vegetable Spaghetti Winter squash seeds. This spaghetti squash is ready in just...
Lettuce Seeds - Butterhead - Buttercrunch
60-70 days. Buttercrunch Lettuce Seeds. Lactuca sativa. Non-GMO. Open Pollinated. An award-winning and absolutely hardy cultivar of butter head, Buttercrunch is tender, delicious, and looks as good in the garden...
Nasturtium Seeds - Jewel Mix
54-63 Days to maturity. Tropaeolum majus. Organic Nasturtium Jewel Mix Seeds. Non-GMO, annual, heirloom. Jewel Mix nasturtium is brilliant, easy to grow from seed, and perfectly suited for many dry...
Tomato Seeds - Paste - San Marzano Indeterminate
85 Days to maturity (from transplant). Solanum lycoperscium. San Marzano (Indeterminate) Tomato Seeds. Non-GMO, annual, open-pollinated, heirloom, indeterminate, paste tomato. Often compared to the famous Roma tomato in terms of...
Kale Seeds - Vates Blue Scotch Curled
60-70 days. Vates Blue Scotch Curled Kale Seeds. Brassica oleracea var. acephalla. Non-GMO. Heirloom. The premier variety of curled kale, Vates Blue Scotch is a tenacious cold-weather favorite known to...
Chives Seeds - Garlic
85-90 Days to maturity. Allium tuberosum. Non-GMO, heirloom Garlic Chives Herb Garden Seed. Chives are native to regions in Asia and Europe. Garlic chive cultivars are also called "Chinese Chives"...
Tomato Seeds - Paste - Roma (Organic)
76 Days to maturity (from transplant). Solanum lycoperscium. Roma (Organic) Tomato Seeds. Non-GMO, annual, organic, open-pollinated, heirloom, heat tolerant, determinate, paste tomato. Suitable for growing in garden plots, raised beds,...
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