What should I plant in January in Boston, MA?

In January in Boston, MA (zone 6b), you can plant Chives, Lavender, Parsley, Rosemary, Brussels Sprouts, and more. These dates are based on local climate data for your area.

When do I plant Chives in Boston, MA?

In Boston, MA (zone 6b), Chives: start seeds indoors Jan 24 – Apr 23, transplant outdoors Apr 1 – Jun 30.

When do I plant Lavender in Boston, MA?

In Boston, MA (zone 6b), Lavender: start seeds indoors Jan 24 – Feb 7, transplant outdoors Apr 9 – Apr 23.

When do I plant Parsley in Boston, MA?

In Boston, MA (zone 6b), Parsley: start seeds indoors Jan 24 – May 31, transplant outdoors Apr 1 – Aug 8.

What to Plant in January

Boston, MA · Zone 6b

Last frost: Apr 10 Frost-free days: 209

Full year calendar for Boston

The garden is dormant outdoors, but it's time to start planning and get seed orders in. Some long-season crops like peppers and onions can be started indoors this month.

January at a Glance

Indoor Transplant Direct Sow

1 5 10 15 20 25

Chives

Lavender

Parsley

Rosemary

Brussels Sprouts

Celery

Garlic

Leek

Onion

Start Indoors 8

Start these seeds indoors under grow lights or on a sunny windowsill.

Plant now

Brussels Sprouts

Jan 1 – Mar 16

1 per sq ft 80–110 days

Leek

Jan 9 – Apr 8

4 per sq ft 90–150 days

Onion

Jan 9 – Apr 15

9 per sq ft 100–120 days

Later this month

Celery

Jan 17 – Apr 15

4 per sq ft 80–120 days

Chives

Jan 24 – Apr 23

9 per sq ft 60–90 days

Lavender

Jan 24 – Feb 7

1 per sq ft 90–120 days

Parsley

Jan 24 – May 31

4 per sq ft 70–90 days

Rosemary

Jan 24 – Mar 8

1 per sq ft 80–120 days

Direct Sow 1

Plant these seeds directly into the soil outdoors.

Garlic

Jan 1 – Jul 23

9 per sq ft 180–240 days

January Gardening Tips

Start Celery, Brussels Sprouts, Leek indoors now to give them a head start before transplanting outside.
Direct sow Garlic straight into the garden — no transplanting needed.
Check seed starting supplies — grow lights, heat mats, and fresh seed-starting mix. Order seeds early for the best selection.