What should I plant in January in zone 6a?

In January in zone 6a, you can plant Rosemary, Lavender, Onions (seed), Celery, Leeks, and more. Check indoor start, transplant, and direct sow dates for your specific zone.

When do I plant Rosemary in zone 6a?

In zone 6a, Rosemary: start seeds indoors Jan 15, transplant outdoors May 1.

When do I plant Lavender in zone 6a?

In zone 6a, Lavender: start seeds indoors Jan 15, transplant outdoors Apr 15.

When do I plant Onions (seed) in zone 6a?

In zone 6a, Onions (seed): start seeds indoors Jan 1--15, transplant outdoors Mar 15--Apr 1.

What to Plant in January

USDA Zone 6a

Last frost: Apr 1 – Apr 15 Frost-free days: 170–190

Zone:

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

Rosemary

Lavender

Onions (seed)

Celery

Leeks

Start Indoors 5

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

Onions (seed)

Jan 1–15

9 per sq ft 100–120 days

Celery

Jan 1–15

4 per sq ft 80–120 days

Leeks

Jan 1–15

4 per sq ft 90–150 days

Rosemary

Jan 15–22

1 per sq ft 80–120 days

Lavender

Jan 15–22

1 per sq ft 90–120 days

January Gardening Tips

Start Celery, Onions (seed), Leeks indoors now to give them a head start before transplanting outside.
Check seed starting supplies — grow lights, heat mats, and fresh seed-starting mix. Order seeds early for the best selection.

Related Guides

Spacing Chart

How many plants per square foot

4×8 Raised Bed Layout

Planting plans for a standard bed

Planting Calendar

When to plant for your zone

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