What to Plant in March in Zone 4

Start indoors in March

Seeds to start under lights or on a sunny sill this month. Dates are the indoor-start window for zone 4.

Vegetables & herbs

• ArtichokeMar 6–Mar 13
• CatmintMar 27–Apr 3
• CatnipMar 27–Apr 3
• Celeriac (Celery Root)Mar 6–Mar 13
• CeleryMar 6–Mar 13
• ChervilMar 20–Mar 27
• ChivesMar 20–Mar 27
• Collard GreensMar 27–Apr 3
• Cutting Celery (Leaf Celery)Mar 20–Mar 27
• EggplantMar 20–Mar 27
• Garlic Chives (Chinese Leeks)Mar 27–Apr 3
• Ground Cherry (Husk Cherry)Mar 27–Apr 3
• HyssopMar 20–Mar 27
• LeekMar 6–Mar 13
• LovageMar 27–Apr 3
• Marjoram (Sweet)Mar 27–Apr 3
• OnionMar 20–Mar 27
• OreganoMar 20–Mar 27
• ParsleyMar 20–Mar 27
• RoselleMar 20–Mar 27
• RosemaryMar 6–Mar 13
• RueMar 27–Apr 3
• SageMar 20–Mar 27
• Salad BurnetMar 27–Apr 3
• ThymeMar 20–Mar 27
• TobaccoMar 20–Mar 27
• TomatilloMar 27–Apr 3
• Winter SavoryMar 27–Apr 3
• Za'atar OreganoMar 20–Mar 27

Peppers

• Aji Amarillo PepperMar 6–Mar 13
• Anaheim Pepper (New Mexico, Hatch)Mar 20–Mar 27
• Bell PepperMar 20–Mar 27
• Cayenne PepperMar 20–Mar 27
• Chile de Árbol PepperMar 20–Mar 27
• Cubanelle PepperMar 20–Mar 27
• Datil PepperMar 6–Mar 13
• Fresno PepperMar 20–Mar 27
• Guajillo Pepper (Mirasol)Mar 20–Mar 27
• Habanero PepperMar 6–Mar 13
• Hungarian Wax PepperMar 20–Mar 27
• Italian Frying Pepper (Corno di Toro, Marconi)Mar 20–Mar 27
• Jalapeño PepperMar 20–Mar 27
• Lemon Drop PepperMar 6–Mar 13
• Mini Sweet Pepper (Snacking)Mar 20–Mar 27
• Padrón PepperMar 20–Mar 27
• Pasilla Pepper (Chilaca)Mar 20–Mar 27
• Pimento PepperMar 20–Mar 27
• Poblano Pepper (Ancho)Mar 20–Mar 27
• Scotch Bonnet PepperMar 6–Mar 13
• Serrano PepperMar 20–Mar 27
• Shishito PepperMar 20–Mar 27
• Sweet Banana PepperMar 20–Mar 27
• Sweet Cherry PepperMar 20–Mar 27
• Tabasco PepperMar 6–Mar 13
• Thai Chili Pepper (Bird's Eye)Mar 20–Mar 27

Flowers

• Ageratum (Flossflower)Mar 27–Apr 3
• Angelonia (Summer Snapdragon)Mar 27–Apr 3
• Annual Geranium (Pelargonium)Mar 13–Mar 20
• Bachelor's Button (Cornflower)Mar 27–Apr 3
• Bells of IrelandMar 27–Apr 3
• Black-Eyed SusanMar 27–Apr 3
• Bupleurum (Thoroughwax)Mar 27–Apr 3
• Butterfly Weed (Asclepias)Mar 20–Mar 27
• CalendulaMar 27–Apr 3
• Campanula (Bellflower)Mar 27–Apr 3
• CarnationMar 27–Apr 3
• CelosiaMar 27–Apr 3
• China AsterMar 27–Apr 3
• Cleome (Spider Flower)Mar 27–Apr 3
• ColeusMar 6–Mar 13
• ColumbineMar 13–Mar 20
• Coreopsis (Tickseed)Mar 27–Apr 3
• Craspedia (Drumstick Flower)Mar 27–Apr 3
• Dusty MillerMar 13–Mar 20
• Echinops (Globe Thistle)Mar 27–Apr 3
• EucalyptusMar 13–Mar 20
• Gaillardia (Blanket Flower)Mar 27–Apr 3
• Gomphrena (Globe Amaranth)Mar 27–Apr 3
• Gypsophila (Baby's Breath)Mar 27–Apr 3
• Helipterum (Paper Daisy)Mar 27–Apr 3
• ImpatiensMar 6–Mar 13
• Johnny Jump UpMar 6–Mar 13
• LobeliaMar 13–Mar 20
• OsteospermumMar 20–Mar 27
• PetuniaMar 13–Mar 20
• Portulaca (Moss Rose)Mar 27–Apr 3
• PrimulaMar 6–Mar 13
• Purple ConeflowerMar 13–Mar 20
• Salvia (Scarlet Sage)Mar 20–Mar 27
• Scabiosa (Pincushion Flower)Mar 27–Apr 3
• Shasta DaisyMar 27–Apr 3
• SnapdragonMar 13–Mar 20
• StrawflowerMar 27–Apr 3
• Sweet AlyssumMar 27–Apr 3
• Sweet WilliamMar 27–Apr 3
• Torenia (Wishbone Flower)Mar 6–Mar 13
• Vinca (Madagascar Periwinkle)Mar 6–Mar 13
• YarrowMar 13–Mar 20

Still time to start indoors

The usual indoor-start date for these has passed, but planting-out hasn't come yet. Seed started now still makes a transplant, just a smaller one. Buying starts is the easy alternative. Dates are when they go outside.

Peppers

• 7 Pot Douglah Pepper (Chocolate 7 Pot)Plant outMay 29–Jun 5
• 7 Pot Primo PepperPlant outMay 29–Jun 5
• Carolina Reaper PepperPlant outMay 29–Jun 5
• Dorset Naga PepperPlant outMay 29–Jun 5
• Ghost Pepper (Bhut Jolokia)Plant outMay 29–Jun 5
• Komodo Dragon PepperPlant outMay 29–Jun 5
• Naga Viper PepperPlant outMay 29–Jun 5
• Rocoto PepperPlant outMay 29–Jun 5
• Superhot Pepper (Ghost, Reaper, Scorpion)Plant outMay 29–Jun 5
• Trinidad Moruga Scorpion PepperPlant outMay 29–Jun 5
• Trinidad Scorpion Butch T PepperPlant outMay 29–Jun 5

Flowers

• Eryngium (Sea Holly)Plant outMay 22–May 29
• FoxglovePlant outMay 22–May 29
• LisianthusPlant outMay 22–May 29
• Pansy / ViolaPlant outMay 1–May 8
• Wax BegoniaPlant outMay 29–Jun 5