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]()
Chinese Toon Seeds - North Red
40-50 Days to maturity. Toona sinensis A. juss. Chinese Toon Seeds - North Red. Heirloom, Non-GMO. Purple type. Vigorous growing. Keep the seeds in a cool and dry place. However,...
Achillea Seeds - Summer Pastels Mix
2nd-year maturity. Achillea millefolium. Summer Pastels Achillea Seeds. Non-GMO, Open-pollinated, Perennial. Achillea Summer Pastels Mix seeds are brilliant, easy to grow, and renowned for their tolerance to thrive where other...
Carnation Seeds - Lillipot Mix (Treated)
154-175 days to maturity. Dianthus caryophyllus. Carnation Lillipot Mix Seeds. Non-GMO, Annual, or Biennial. Ornamental. Treated seeds. Lillipot Mix carnation seeds promise a spectacular and fragrant alternative to the traditional...
Pampas Grass Seeds
2nd year maturity. Cortaderia selloana. Pampas Grass Seeds. Non-GMO, Perennial. Open Pollinated. Ornamental. Pampas grass is one of the most popular non-flower ornamental plants in the entire world. Seeds mature...
Asparagus Seeds - UC 157 F1
Second season harvest. Asparagus officinalis. UC 157 F1 Asparagus Seeds. Non-GMO, perennial, F1 hybrid. This crop is suitable for garden plots, raised beds, and fields. Classic UC Riverside hybrid known...
Myosotis (Forget-Me-Not) Seeds - Sylvatica
2nd Year Maturity. Forget-Me-Not sylvatica seeds promise an authentic and biennial touch of the United Kingdom in your garden. Myosotis sylvatica seeds grow herbaceous 9-12" tall dwarfed branching shrubs bursting...
Columbine Seeds - Dragonfly Mix
2nd-year maturity. Aquilegia caerulea. Columbine Dragonfly Mix Seeds. Non-GMO, Perennial. Ornamental. Dragonfly Mix seeds deliver a wonderfully unique and vibrant alternative to the traditional columbine. Dragonfly Mix seeds grow brilliant...
Russian Sage Perovskia Seeds - Blue Steel
2nd Year Maturity. Non-GMO, Heirloom Blue Steel Russian Sage Perovskia Herb Garden Seed from True Leaf Market. Perovskia atriplicifolia. Blue Steel Russian Sage is known for its ornamental benefits as...
Evening Primrose Seeds - Dwarf
Oenothera glazioviana (syn. O. lamarckiana)- Perennial with stems 2 inches long. Drought Tolerant and long-lived. Makes a great ground cover. Evening Primrose Flower Seeds - Dwarf - Oenothera glazioviana Non-GMO...
Onion Seeds - Bunching - Shimonita Negi
120-140 Days to maturity. Allium fistulosum. Variety name Onion Seeds. Non-GMO, perennial, open-pollinated, heirloom, bunching onion. Suitable for growing in greenhouses, garden plots, raised beds, and containers. Shimonita Town is...
Linum Seeds - Blue Flax
60-90 Days to maturity. Linum perenne var. lewisii. Linum Blue Flax Seeds. Non-GMO, Perennial. Blue Flax Linum seeds grow one of the most classic and familiar blooms native to the...
Columbine Seeds - Origami Mix
2nd-year maturity. Aquilegia caerulea. Columbine Origami Mix Seeds. Non-GMO, Perennial. Ornamental. Origami Mix columbine seeds grow a playful, robust, and familiar classic American perennial that fits right at home among...
Oenothera Seeds - Showy Evening Primrose
91-98 days to Maturity. Showy Evening Primrose oenothera seeds grow one of summer's most familiar, gentle, yet vigorous blooms. Showy Evening Primrose is easy to grow from seed and is...
Columbine Seeds - McKana Giant AAS
2nd-year maturity. Aquilegia x hybrida. Columbine McKana's Giant Seeds. Non-GMO, Perennial. Ornamental. McKana's Giant seeds grow the absolute tallest, brightest, and most vivid columbines in the country. McKana's Giant columbine...
Mimosa Seeds - Sensitive Plant
70-80 days. Mimosa pudica. Sensitive Plant Mimosa Seeds. Non-GMO, Annual (tender perennial). Sensitive Plant mimosas guarantee one of the most interactive, playful, and entertaining blooms you'll ever grow. Sensitive Plant...
Ratibida Seeds - Mexican Hat
2nd Year maturity. Ratibida columnaris forma pulcherrima. Ratibida Mexican Hat Seeds. Non-GMO, Ornamental, Perennial. Mexican Hat Ratibida seeds grow one of the summer's most vigorous and exclusive blooms boasting unique...
Myosotis Compindi (Forget-Me-Not) Seeds
2nd-year maturity. Myosotis sylvatica. Forget-Me-Not Seeds. Non-GMO, Perennial. Forget-Me-Not Myosotis Compindi seeds are one of the United Kingdom's most popular and thriving blooms and promise to add an equal amount...
Onion Seeds - Short - Eclipse L303
100-160 Days to maturity. Allium cepa. Eclipse L303 Onion Seeds. Non-GMO, annual, open-pollinated, heirloom, bulbing, short-day onion. Suitable for growing in greenhouses, garden plots, and raised beds. Produce crisp, medium-size...
Asparagus Crowns - Spring - Mary Washington
This is a pre-order item and is expected to ship in February to March for spring planting. Other seeds, supplies, or kits ordered with this product may ship separately. This...
Salvia Seeds - Blue Queen
2nd year maturity. Salvia nemorosa. Salvia Blue Queen Seeds. Non-GMO, Perennial. Ornamental. Blue Queen salvia seeds are elegant, vibrant, and hardy. They will grow where other salvia plants would decline....
Sweet Pea Seeds - Everlasting
2nd Year Maturity. Lathyrus latifolius. Sweet Pea Everlasting Seeds. Non-GMO, Perennial, open-pollinated. Everlasting sweet pea seeds are a timeless and brilliant addition to any home or garden year round. Sweet...
Saponaria Seeds - Rock Soapwort
240 Days to maturity. Saponaria ocymoides. Rock Soapwort Saponaria Seeds. Non-GMO, perennial. A great spreading ground cover that can be grown from seed. Easy to grow plant spreads to 16...
Hollyhock Seeds - Powderpuffs Double Mix
2nd-year maturity. Alcea rosea. Hollyhock Powderpuffs Double Mix Seeds. Non-GMO, Perennial/Biennial. Powderpuffs Double Mix hollyhock seeds are an ideal plant to rejuvenate a tired garden into a stunning and vibrant...
Hollyhock Seeds - Chaters Double Mixture
2nd-year maturity. Alcea rosea. Hollyhock Chater's Double Mixture Seeds. Non-GMO, Perennial/Biennial. Chater's Double Mixture hollyhock seeds promise to turn any stale bedding into a sensational and eye-catching garden this season....
Competition Pumpkin Seeds - 400 lb plus
115+ Days to maturity. Non-GMO Competition Pumpkin 400 lb. Plus pumpkin seeds from True Leaf Market come from competition pumpkins that weighed 400 lbs. or more. Whether you want to...
Hollyhock Seeds - Nigra
365 Days to maturity (2nd Year). Alcea rosea ’Nigra’. Hollyhock Nigra Flower Seeds. Non-GMO, open-pollinated, self-seeding short-term perennial (sometimes considered a biennial). Nigra hollyhock flowers are not easy to forget....
Coffee Seeds - Coffea Arabica Nana
About 3-4 years to harvest. Coffea arabica 'Nana'. Nana Arabian Coffee Seeds. Non-GMO, perennial, open-pollinated, tropical, dwarf coffee tree. Nana Arabian Coffee tree seeds grow dwarf coffee plants that will...
Rhubarb Crowns - Spring - Canadian Red
This is a pre-order item and is expected to ship from March to April. Other seeds, supplies, or kits ordered with this product will ship separately. This product only ships...
Shasta Daisy Seeds - Crazy Daisy
2nd-year maturity. Leucanthemum × superbum. Shasta Daisy Crazy Daisy Seeds. Non-GMO, Perennial. Ornamental. Crazy Daisy seeds grow a fun and exciting twist to the traditional shasta daisy. Crazy Daisy seeds...
Asparagus Crowns - Sweet Purple
This is a pre-order item and is expected to ship in February to March for spring planting. Other seeds, supplies, or kits ordered with this product may ship separately. This...
Rhubarb Crowns - Spring - Valentine
This is a pre-order item and is expected to ship from March to April. Other seeds, supplies, or kits ordered with this product will ship separately. This product only ships...
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