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]()
Mustard Seeds - Senposai Komatsuna Hybrid
30-40 to maturity. Brassica rapa var. perviridis. Senposai Komatsuna Mustard Seeds. Non-GMO, warm or cold-season, annual, hybrid. This popular traditional Japanese komatsuna hybrid has glossy, thick dark green leaves and...
Iberis (Candytuft) Seeds - Empress
70-77 days to maturity. Iberis amara. Iberis Empress Seeds. Non-GMO, Annual. Empress Candytuft seeds are an elegant, timeless addition to any garden. Empress iberis seeds grow to highlight and accent...
Spinach Seeds - Oceanside - Hybrid
Spinach Seeds - Oceanside - Hybrid. Non-GMO. Spinacea oleracea. 25-30 days maturity for baby leaf, 40-60 days to full maturity. Cool season annual. Oceanside is a slow - moderate growing...
Lettuce Seeds - Pointed Taiwan Sword Leaf
75-85 day maturity. Lactuca sativa var. asparagina. Pointed Taiwan Sword Celtuce Lettuce Seeds. Non-GMO, cool-season annual heirloom. This variety of Chinese stem lettuce is perfect for home gardeners. Chinese stem...
Chinese Cabbage Seeds - Blues - Hybrid
50-60 Days to maturity. Brassica rapa var Pekinensis 'Blues'. Blues Hybrid Chinese Cabbage Seeds. Annual Hybrid. This early maturity Chinese cabbage (Nappa) has many qualities like being widely adaptable for...
Pak Choi Seeds - Purple Gem Hybrid
Cabbage Seeds - Pak Choi - Purple Gem - Hybrid. Non-GMO. Brassica rapa Chinensis Group. 10-15 days microgreens; 20-30 days baby leaf; 45 days full maturity. Cool season annual. Purple...
Cauliflower Seeds - Purple of Sicily
70-90 Days to maturity. Brassica oleracea. Purple of Sicily Cauliflower Vegetable Seeds. Non-GMO, annual, open-pollinated, heirloom cauliflower. Purple of Sicily is a standout heirloom cauliflower variety that traces its origins...
Broccoli Seeds - Ramoso Santana
Ramoso Santana Broccoli Seeds. 48 to 70 days. Brassica Oleracea. Non-GMO, Open Pollinated. A rare and little known crop of sprouting broccoli, Ramoso Santana is a delicious and slow-bolting Mediterranean...
Lettuce Seeds - Leaf - New Red Fire
50 to 55 Days to maturity. Lactuca sativa. New Red Fire Leaf Lettuce Seeds. Annual, Heirloom, Open Pollinated. This large ruffled and loose-leaf lettuce is green at the base of...
Turnip Seeds - Fuku Komachi - Hybrid
Turnip Seeds - Fuku Komachi - Hybrid. Non-GMO. Brassica rapa subsp. rapa. 25-45 days depending on type of maturity. Cool season annual. Fuku Komachi has one of the slowest bolting...
Lettuce Seeds - Leaf - Merlot
Merlot Leaf Lettuce Seeds. 55 days to maturity. Lactuca sativa. Heirloom, Annual. Merlot is a loose-leaf type with an intense deep burgundy color. Approximately 25,000 seeds/ounce. Lettuce Seeds - Leaf...
Pea Seeds - Shelling - Green Arrow (Treated)
65-75 Days to maturity. Pisum sativum. Green Arrow Pea Seeds (Treated). Non-GMO, annual, open-pollinated, heirloom, treated pea seeds. Long, slim, 4.5-inch pods grow in pairs on strong 28-inch vines. Suitable...
Linum Seeds - Scarlet Flax
77-84 Days to maturity. Linum grandiflorum var. rubrum. Linum Scarlet Flax Seeds. Non-GMO, Annual. Scarlet Flax seeds promise exotic, radiant, and perfectly-suited Linum plants for many dry and temperate climates....
Lettuce Seeds - Arianna
Lactuca sativa (39 days) Attractive French variety with large foliage and small, tall open heads with thick, mint green leaves. Approx. 25,000 seeds per ounce. Download Free Vegetable Growing Guide...
Radish Seeds - China White Winter
China White Winter Radish Seeds. 60 days to maturity. Raphanus sativus. Heirloom, Annual. A light frost tolerant heirloom dating back to the late 1800s. Produces long, cylindrical radishes of 6...
Chinese Cabbage Seeds - Hwi Mo Ri - Hybrid
65-70 Days to maturity. Brassica rapa var pekinensis ‘Hwi Mo Ri’. Hwi Mo Ri Hybrid Chinese Cabbage Seeds. Annual Hybrid. Hwi Mo Ri is an ideal cultivar to use for...
Lettuce Seeds, Romaine - Brune D'Hiver - Organic
Organic Brune D'Hiver Romaine Lettuce Seeds. 55 to 60 days to maturity. Lactuca sativa. Heirloom, Non-GMO, Annual. >Introduced in 1855, this French butterhead-type lettuce has crunchy green leaves with a...
Pak Choi Seeds - Da Hong Summer Hybrid
10-15 days microgreens; 20-30 days baby leaf; 45 days full maturity. Brassica rapa var chinensis. Da Hong Summer Hybrid Pak Choi Chinese Cabbage Seeds. Non-GMO, cool-season annual, hybrid. Da Hong...
Swiss Chard Seeds - Flamingo
Flamingo Swiss Chard Seeds. 60 days to full maturity. 30 days to maturity for baby leaves. Can be grown in containers. Can be grown as micro greens. Beta vulgaris. Open...
Rapeseed - Canola (Organic)
74-140 Days to maturity. Brassica napus. Organic Spring Rapeseed Canola Seeds. Non-GMO, organic, open-pollinated biennial. This Organic Spring Rapeseed Canola can be grown as sprouts, microgreens, roots, leafy greens, vegetable...
Radish Seeds - Fire Candle
Fire Candle Radish Seeds. 30-40 Days to maturity. Annual, open-pollinated, and non-GMO seeds. Raphanus sativus. Looking more similar to a red carrot than spring radish, the Fire Radish candle is...
Radish Seeds - Hailstone
In 25 days, growers should see 2-inch radishes develop a pure- white skin with firm flesh. Non-GMO and heirloom Hailstone Radish are reliable and quick-growing vegetables for new gardeners. Vegetable...
Lettuce Seeds, Leaf - Green Salad Bowl - Organic
Organic Green Salad Bowl Leaf Lettuce Seeds. 50 days to maturity. Baby leaf maturity at 28 days. Lactuca sativa. Heirloom, Non-GMO, Annual. Approx. 25,000 Seeds per ounce. Download Free Vegetable...
Mustard Seeds - Chinese
60-65 days to maturity.Brassica juncea. Chinese Mustard Seeds. Non-GMO, cool-season, year-round annual, heirloom. This special selected Chinese mustard has a compact head with thick petioles and large wrapping leaves. Chinese...
Lettuce Seeds, Leaf - Prizehead - Organic
Organic Prizehead Leaf Lettuce Seeds. 45 - 55 days to maturity. Lactuca sativa. Heirloom, Non-GMO, Annual. Approx. 25,000 Seeds per ounce. Download Free Vegetable Growing Guide PDF Lettuce Seeds, Leaf...
Lettuce Seeds - Okayama Salad
50-60 days to maturity. Lactuca sativa ‘Okayama Salad’. Okayama Salad Lettuce Seeds. Non-GMO, cool-season annual heirloom. This early-maturing butterhead lettuce is a Japanese variety known for its delicate flavor and...
Radish Seeds - Pink Beauty
Pink Beauty radishes are uniform light pink with tender white flesh. They have a delicious sweet and spicy flavor. They are easy to grow at home, and produce high yields....
Cabbage Seeds - Brunswick (Organic)
70 Days to maturity. Brassica oleracea ’Brunswick’. Organic Brunswick Cabbage Seeds. Non-GMO, cool weather annual. Introduced in 1824 to the United States from Germany, this cabbage is excellent for making...
Shallot Sets - Yellow
10 Sets This is a pre-order item and is expected to ship in March to April for spring planting. Other seeds, supplies, or kits ordered with this product may ship...
Onion Seeds - Long - Stuttgarter (Organic)
100 Days to maturity. Allium cepa. Organic Stuttgarter Onion Seeds. Non-GMO, annual, organic, open-pollinated, heirloom, bulbing, long-day onion. Suitable for growing in greenhouses, garden plots, and raised beds. AKA: Giant...
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