links to seed finder tool

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.

50 100 true //store.trueleafmarket.com/cdn/shop/t/54/assets/review-fallback.json?v=33078429469613971781712858278
Legend: H for Heirloom, O for Organic, A for AAS Winner, F for staff favorites
20 Items
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10 x 20 Growing Trays WITH Drain Holes10 x 20 Growing Trays WITH Drain Holes
-0
10 x 20 Growing Trays WITH Drain Holes
Starting at $15.47
5 x 5 Small Growing Tray Inserts (with Drain Holes)5 x 5 Small Growing Tray Inserts (with Drain Holes)
-0
5 x 5 Small Growing Tray Inserts (with Drain Holes)
Starting at $6.06
10 x10 Growing Trays WITH Drain Holes10 x10 Growing Trays WITH Drain Holes
-0
10 x10 Growing Trays WITH Drain Holes
Starting at $13.53
1020 Heavy Duty Microgreens Trays - With Holes - Black - Shallow1020 Heavy Duty Microgreens Trays - With Holes - Black - Shallow
-0
1020 Heavy Duty Microgreens Trays - With Holes - Black...
Starting at $14.69
Tray Insert - 72 Cell - 12x6 NestedTray Insert - 72 Cell - 12x6 Nested
-0%
Tray Insert - 72 Cell - 12x6 Nested
Starting at $8.52
Tray Insert - 18 CellTray Insert - 18 Cell
-0
Tray Insert - 18 Cell
Starting at $17.30
Tray Insert - 288 PlugTray Insert - 288 Plug
-0
Tray Insert - 288 Plug
Starting at $23.24
Tray Insert - 36 Cell - 6x6 Nested (3.25" Deep)Tray Insert - 36 Cell - 6x6 Nested (3.25" Deep)
-0
Tray Insert - 36 Cell - 6x6 Nested (3.25" Deep)
Starting at $13.45
12 Cell Seed Starting Set - Tray, Insert, Dome12 Cell Seed Starting Set - Tray, Insert, Dome
-0
12 Cell Seed Starting Set - Tray, Insert, Dome
Starting at $16.53
Tray Insert - 32 Cell - 8x4 NestedTray Insert - 32 Cell - 8x4 Nested
-0
Tray Insert - 32 Cell - 8x4 Nested
Starting at $13.63
1020 Heavy Duty Microgreens Trays - With Holes - Green - Shallow
-0
1020 Heavy Duty Microgreens Trays - With Holes - Green...
Starting at $16.79
Tray Insert - 48 Cell - 12x4 NestedTray Insert - 48 Cell - 12x4 Nested
-0
Tray Insert - 48 Cell - 12x4 Nested
Starting at $12.30
Bootstrap Farmer - 5x5 Heavy Duty Microgreens Tray InsertsBootstrap Farmer - 5x5 Heavy Duty Microgreens Tray Inserts
-0
Bootstrap Farmer - 5x5 Heavy Duty Microgreens Tray Inserts
Starting at $19.62
Micro Punnet Tray - MicrogreensMicro Punnet Tray - Microgreens
-0
Micro Punnet Tray - Microgreens
Starting at $12.32
SPECIAL EDITION Harvest Orange 1020 Heavy Duty Garden TraySPECIAL EDITION Harvest Orange 1020 Heavy Duty Garden Tray
-0
Staff Favorite
SPECIAL EDITION Harvest Orange 1020 Heavy Duty Garden Tray
Starting at $15.48
Tray Insert - 12 Cell TraysTray Insert - 12 Cell Trays
-0
Tray Insert - 12 Cell Trays
Starting at $12.65
1020 1 Inch Deep Mesh Trays - Extra Strength1020 1 Inch Deep Mesh Trays - Extra Strength
-0
1020 1 Inch Deep Mesh Trays - Extra Strength
Starting at $14.46
1020 Heavy Duty Microgreens Trays - With Holes - Blue - Shallow
-0
1020 Heavy Duty Microgreens Trays - With Holes - Blue...
Starting at $16.79
1020 2.5 Inch Deep Mesh Trays - Extra Strength
-0
1020 2.5 Inch Deep Mesh Trays - Extra Strength
Starting at $27.25
Tray Insert - 36 Cell - 6x6 Nested (2.25" Deep)Tray Insert - 36 Cell - 6x6 Nested (2.25" Deep)
-0
Tray Insert - 36 Cell - 6x6 Nested (2.25" Deep)
Starting at $14.18
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