What should I plant in October in Portland, OR?

In October in Portland, OR (zone 8b), you can plant Chives, Brussels Sprouts, Radish, Spinach, Turnip, 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 Brussels Sprouts in Portland, OR?

In Portland, OR (zone 8b), Brussels Sprouts: start seeds indoors Jan 1 – Mar 31 and Oct 24 – Dec 31, transplant outdoors Mar 1 – Aug 8.

When do I plant Radish in Portland, OR?

In Portland, OR (zone 8b), Radish: direct sow Mar 1 – Jul 23 and Aug 17 – Oct 8.

What to Plant in October

Portland, OR · Zone 8b

Last frost: Mar 15 Frost-free days: 245

Full year calendar for Portland

Enjoy the cooler growing weather. Direct sow greens, root vegetables, and cover crops. Plant garlic and overwintering onions for next spring.

October at a Glance

Indoor Transplant Direct Sow

1 5 10 15 20 25

Chives

Brussels Sprouts

Radish

Spinach

Turnip

Start Indoors 2

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

Transplant 1

Move these seedlings from indoors to your garden beds.

Spinach

Sep 9 – Oct 23

9 per sq ft 35–50 days

Direct Sow 2

Plant these seeds directly into the soil outdoors.

Turnip

Feb 15 – Oct 8

9 per sq ft 30–60 days

Radish

Aug 17 – Oct 8

16 per sq ft 22–30 days

October Gardening Tips

Start Chives, Brussels Sprouts indoors now to give them a head start before transplanting outside.
Spinach can be transplanted outside this month. Harden off seedlings over 5–7 days before planting out.
Direct sow Radish, Turnip straight into the garden — no transplanting needed.
Clean up spent crops to reduce overwintering pest and disease pressure.