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]()
Spinach Seeds - Giant Noble
Non-GMO. Heirloom. Giant Noble Spinach Vegetable Garden Seed. Spinacia oleracea. The smooth and rich-green leaves of these spinach plants help provide this heirloom's name" as Giant Noble Spinach leaves grow...
Spinach Seeds - Bloomsdale Long Standing (Organic)
35-50 days. Organic Bloomsdale Long Standing Spinach Seeds. Spinacia oleracea. Non-GMO. Heirloom. Organic Bloomsdale Long Standing Spinach provides bright flavor with tender leaves, as this annual is a popular variety...
Spinach Seeds - Bloomsdale Long Standing
35-50 days. Bloomsdale Long Standing Spinach Seeds. Spinacia oleracea. Non-GMO. Open Pollinated. Bloomsdale Spinach seeds came from Philadelphia in the late 19th century by D. Landreth & Sons Seed Company....
Spinach Seeds - America
America Spinach Seeds. 43 to 55 Days. Non-GMO, Open Pollinated, Heirloom. Spinacia oleracea. AKA: American, America Long Standing. The America Spinach variety is tolerant of heat and drought and is...
Spinach Seeds - Viroflay
Non-GMO, Heirloom Viroflay Spinach Vegetable Garden Seed from True Leaf Market. Spinacia oleracea. Viroflay Spinach Seeds originate from France around the 17th century and have been cultivated in Paris. The...
Yu Choy Sum Seeds - Jung Green
Yu Choy Sum Seeds - Jung Green. Heirloom, Non-GMO. Brassica rapa var parachinesis. 40-45 days. Warm season annual. Flowering Brassica is a fast growing green that can be harvested as...
Chrysanthemum Greens Seeds - Oasis
40-50 Days to maturity. Glebionis coronaria var. oasis. Oasis Chrysanthemum Greens Seeds. Cool-season annual heirloom. Non-GMO. Oasis has small, deeply serrated, dark-green aromatic leaves that are more productive, vigorous, and...
Spinach Seeds - Lakeside - Hybrid
Spinach Seeds - Lakeside - Hybrid. Non-GMO. Spinacea oleracea. 25-30 days maturity for baby leaf, 40-60 days to full maturity. Cool season annual. Lakeside has uniform thick dark green smooth...
Spinach Seeds - Matador Viking
45 days. Spinacia oleracea. Matador Viking Spinach Seeds. Non-GMO, annual, heirloom, open-pollinated. This crop is suitable for containers, garden plots, raised beds, and fields. 1933 heirloom with smooth, dark green...
Broccoli Seeds - Chinese Broccoli - Early Jade - Hybrid
40-50 days to maturity. Brassica oleracea var alboglabra ‘Early Jade’. Early Jade Chinese Broccoli Seeds. Non-GMO, Hybrid, Cool-season Annual. Closely related to European cabbage, Chinese Broccoli was introduced to China...
Spinach Seeds - Seaside - Hybrid
Spinach Seeds - Seaside - Hybrid. Non-GMO. Spinacea oleracea. 25-30 days maturity for baby leaf, 40-60 days to full maturity. Cool season annual. Seaside is a very uniform baby leaf...
Chrysanthemum Greens Seeds - Garland Round Leaf
40-50 Days to maturity. Glebionis coronaria var. garland round leaf. Garland Round Leaf Chrysanthemum Greens Seeds. Cool-season annual heirloom. Non-GMO. Garland Round Leaf has large, medium-green oblong leaves that are...
Yu Choy Sum Seeds - Early Green
Yu Choy Sum Seeds - Early Green. Heirloom, Brassica rapa subsp. chinensis. Non-GMO. Warm season annual. 30-40 days. Flowering Brassica is a fast growing green that can be harvested as...
Mixed Greens Seeds - Braising Mix
45-60 Days to maturity. 25-30 Days to baby leaf harvest. Mixed Greens Braising Mix Vegetable Seeds. Non-GMO, annual, open-pollinated, mixed greens. The Mixed Greens Braising Mix is a blend of...
Chrysanthemum Seeds - Broad Leaf, Edible
This Chrysanthemum (also called garland daisy) can be grow to a maturity with yellow and white blooms, but also popular as edible greens. Chrysanthemum coronarium. Non-GMO, Annual. A popular Green...
Brassica Classic Trio Cover Crop Seed Mix
40-60 Days to Termination. Brassica napus, Brassica rapa, and Raphanus sativus. 3 Brassica Classic Trio Cover Crop Seeds. Non-GMO, annual, open-pollinated, winter-killing. This cover crop mix of radish, canola rapeseed,...
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...
Chrysanthemum Greens Seeds - Garland Serrated Leaf
40-50 Days to maturity. Glebionis coronaria var. garland serrated leaf. Garland Serrated Leaf Chrysanthemum Greens Seeds. Cool-season annual heirloom. Non-GMO. Garland Serrated Leaf is a highly valued Japanese vegetable with...
Paperwhites Bulbs - 15/16 - Ziva
10 Bulb Bag This is a pre-order item that is expected to ship in Late October to November for fall planting in warm climates, or as houseplants indoors. Other seeds,...
Amaryllis Bulbs - 24/26 - Fantastica
1 Bulb Bag This is a pre-order item that is expected to ship in Late October to November for fall planting. Other seeds, supplies, or kits ordered with this product...
Amaryllis Bulbs - 24/26 - Laforest Morton
1 Bulb Bag This is a pre-order item that is expected to ship in Late October to November for fall planting. Other seeds, supplies, or kits ordered with this product...
Amaryllis Bulbs - 24/26 - Maria Goretti
1 Bulb Bag This is a pre-order item that is expected to ship in Late October to November for fall planting. Other seeds, supplies, or kits ordered with this product...
Amaryllis Bulbs - 24/26 - Red Lion
1 Bulb Bag This is a pre-order item that is expected to ship in Late October to November for fall planting. Other seeds, supplies, or kits ordered with this product...
Lettuce Seeds - Heatwave Mix - Organic
The Heatwave Lettuce Mix lettuces that thrive in the heat and remain productive. Our choice" slow-bolt" varieties such as Great Lakes, Iya Sol, and Oakleaf Royal. These lettuce types texture...
Spinach Seeds - Carmel Hybrid
40 days. Spinacia oleracea. Carmel Hybrid Spinach Seeds. Non-GMO, annual, F1 hybrid. This crop is suitable for garden plots, raised beds, and containers. Carmel is a fast-growing, very uniform hybrid...
Yu Choy Sum Seeds - Late Green
Yu Choy Sum Seeds - Late Green. Heirloom, Non-GMO. Brassica rapa var parachinesis. 45-55 days. Warm season annual. Flowering Brassica is a fast growing green that can be harvested as...
Orach Seeds - Red (Organic)
45 Days to maturity. Atriplex hortensis ’Red’. Organic Red Orach Seeds. Non-GMO, cool season annual. This ancient plant has been used for ages by a variety of cultures and peoples....
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