What should I plant in December in Portland, OR?

In December in Portland, OR (zone 8b), you can plant Chives, Mint, Parsley, Brussels Sprouts, Leek, and more. These dates are based on local climate data for your area.

When do I plant Chives in Portland, OR?

In Portland, OR (zone 8b), Chives: start seeds indoors Jan 1 – Apr 23 and Oct 24 – Dec 31, transplant outdoors Jan 1 – Jun 30.

When do I plant Mint in Portland, OR?

In Portland, OR (zone 8b), Mint: start seeds indoors Jan 1 – Apr 30 and Nov 1 – Dec 31, transplant outdoors Jan 1 – Jun 30.

When do I plant Parsley in Portland, OR?

In Portland, OR (zone 8b), Parsley: start seeds indoors Jan 1 – Jun 30 and Dec 9 – Dec 31, transplant outdoors Feb 15 – Sep 8.

What to Plant in December

Portland, OR · Zone 8b

Last frost: Mar 15 Frost-free days: 245

Full year calendar for Portland

Winter gardening continues — harvest cool-season greens and root vegetables. Plan next year's layout and order seeds early for the best selection.

December at a Glance

Indoor Transplant Direct Sow

1 5 10 15 20 25

Chives

Mint

Parsley

Brussels Sprouts

Leek

Onion

Spinach

Strawberry

Start Indoors 8

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

Chives

Oct 24 – Dec 31

9 per sq ft 60–90 days

Brussels Sprouts

Oct 24 – Dec 31

1 per sq ft 80–110 days

Mint

Nov 1 – Dec 31

4 per sq ft 60–90 days

Strawberry

Nov 16 – Dec 31

4 per sq ft 60–90 days

Leek

Dec 1–31

4 per sq ft 90–150 days

Onion

Dec 1–31

9 per sq ft 100–120 days

Spinach

Dec 1–31

9 per sq ft 35–50 days

Parsley

Dec 9–31

4 per sq ft 70–90 days

December Gardening Tips

Start Spinach, Strawberry, Chives indoors now to give them a head start before transplanting outside.
Get a soil test now — results come back fast in the off-season and you can amend before spring.