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March Seed Starting Guide (Zones 1-10)

March Seed Starting Guide (Zones 1-10)

Posted by Amber Jouben on Mar 6th 2022

March is here and that means it is time to start seeds!

March is the perfect time to get a jump start on all the spring garden plans and start seeds for spring planting. No matter where you live, there are seeds that you can be starting now!

Here is a seed starting guide for March in zones 1-10. 

Seed Starting Guide for March

Zones 1-4

For those in Zones 1-4 you can start these seeds indoors now (or soon) depending on your zone.

Seeds to start INDOORS in March:

Kale seed

Herb seeds

Spinach seed

Micro-Green seeds

Onion seed

Chive seed

Middle to late March start these seeds (indoors):

Broccoli seed

Cauliflower seed

Celery seed

Cabbage seed

Brussels sprouts seed

Arugula

Leafy Greens such as:

Mustard seed, Turnip seed, Collards seed

*Note: Now is the time to order crops that will be direct sown soon: Carrots, potatoes, parsnips, Lettuces, Radishes, beets, peas - also order tomato and pepper seeds now for next month.

Zone 5

Zone 5 growers can start these seeds indoors in early March:

Broccoli seed

Cauliflower seed

Celery seed

Cabbage seed

Brussels sprouts seed

Kale seed

Spinach seed

Arugula

Asparagus seed

Onion seed

Chive seed

Herb seeds

Micro-Green seeds

Start these seeds indoors mid-March:

Tomato seed

Pepper seed

Eggplant seed

*Note: Check your seed inventory for seeds that you will direct sow soon like pea seeds, seed potatoes, carrot, parsnips, radish, lettuces and beets!

Don’t forget to order your spring crop seeds soon.

Zone 6

Gardeners in Zone 6 can start all their cold weather crops indoors under grow lights at the beginning of March if they have not already done so in February.

These include:

Onion seed

Chive seed

Herb seeds

Micro-Green seeds

Cabbage seed

Broccoli seed

Celery seed

Cauliflower seed

Brussels sprouts seed

Spinach seed

Kale seed

Early to Mid-March Start these seeds INDOORS:

Tomato seed

Pepper seed

Eggplant seed

*Note: If you haven’t ordered seeds yet …do it soon! Order your pepper and tomatoes seeds now.

You will be starting those indoors in the middle to end of this month.

**Seed potatoes, carrot, parsnips, peas, radish, lettuce, and beet seeds will be able to be direct sown in late March or Early April.

Zone 7

Zone 7 Growers need to start these seeds Indoors in late February to Early March:

Tomato seed

Pepper seed

Eggplant seed

Zone 7 growers can direct sow or transplant these cold weather crops mid to late March.

These seeds include:

Cabbage seed

Broccoli seed

Celery seed

Cauliflower seed

Brussels sprouts seed

Spinach seed

Kale seed

Carrot seed

Radish seed

Beet seed

Lettuce seed

Pea seed

*Growers in zone 7… don’t forget to order your spring crop seeds soon! 

Zone 8

For Zone 8, March is a big month for planting! Ideally, you should have already started your cold weather seeds in and those should be ready to be transplanted out in the garden soon.

(Don’t forget to harden off your plants before transplanting)

Transplant these cool season crops outdoors in early to mid-March:

Cabbage seed

Broccoli seed

Celery seed

Cauliflower seed

Onion seed

Leafy Greens such as:

Mustard seed, Turnip seed, Collards seed

Direct Sow cool season seeds outdoors early to mid-March. These include:

Celery seed

Cauliflower seed

Brussels sprouts seed

Spinach seed

Kale seed

Carrot seed

Radish seed

Beet seed

Lettuce seed

Pea seed

Potatoes

These seeds should already be started or can be started now indoors:

Tomato seed

Pepper seed

Eggplant seed

Squash seed

*Start your Spring Planting Seeds indoors now! These include:

Squash seed

Cucumber seed

Melon seed

Bean seed

Corn seed

Note: Don’t forget to harden off plants before transplanting! Also, don’t forget to up pot your tomatoes and peppers soon!


Zone 9

In zone 9, growers can start these crops by direct sowing them in early March.

Cabbage seed

Broccoli seed

Celery seed

Cauliflower seed

Brussels sprouts seed

Onion seed

Kale seed

Radish seed

Beet seed

Lettuce seed

Pea seed

Mustard seed

Turnip seed

Potatoes

Carrot seed

Spinach seed

Transplant these crops:

Onion seed

Chive seed

Herb seeds

Mid to late March Direct sow or transplant these crops:

Tomato seed

Pepper seed

Corn seed

Start these seeds indoors (or direct sow under cover if needed):

Squash seed

Cucumber seed

Melon seed

Bean seed

Pumpkin seed

Zone 10

Growers in zone 10 can start a wide variety of seeds in March indoors and outdoors!

Start these seeds indoors:

Celery seed

Tomato seed

Pepper seed

Corn seed

Melon seed

Tomato seed

Pepper seed

Eggplant seed

Cucumber seed

Start these seeds outdoors (or transplant):

Lettuce seed

Onion seed

Spinach seed

Radish seed

Beet seed

Herb seeds


March is an exciting month for gardeners! Spring’s arrival is inching closer, and the time has definitely come to kick our garden plans into high gear. All our winter garden planning finally gets to jump off the paper and into the seed trays! Watching the first seeds of the season pop up from the soil never gets old…little sparks of hope for another wonderful year in the garden.

Blessings of Bounty- Amber Jouben

Heritage Hollow Homestead

Not Sure Which Zone?

Check out our map below, or for more specific zoning information, check out this map on our website.