When to Plant Brussels Sprouts in Forest Grove, OR

One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The first opportunity to plant brussels sprouts in Forest Grove can be figured out by looking at the USDA zone info.


Planting Calendar for Brussels Sprouts

Frost tolerance for brussels sprouts: Tolerant of some frost.
When to plant: Up to 5 weeks before last frost.

Since brussels sprouts do well in moderate cold you can plant them a bit earlier in the year than plants that are more sensitive to the cold.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant brussels sprouts
Possibly ok, but a risky time to plant brussels sprouts
Probably not a good time to plant brussels sprouts

The earliest that you can plant brussels sprouts in Forest Grove is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant brussels sprouts and expect a good harvest is probably September. Any later than that and your brussels sprouts may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your brussels sprouts indoors.

Last Frost Date

The average date of last frost is March 15 in Forest Grove. In the coldest months of winter you can expect an average low temperature of 15°F.

Since the USDA zone info for Forest Grove may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Half of the time in Forest Grove you get surprised by a frost after March 15 so just be sure to be ready to cover your brussels sprouts if you have a late frost.

USDA Zone Info for Forest Grove

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)March 15
Average Date of First Frost (fall)November 15
Lowest Expected Low15°F
Highest Expected Low20°F

This means that on a really cold year, the coldest it will get is 15°F. On most years you should be prepared to experience lows near 20°F.

Plants to Grow in Forest Grove

You may be interested in your other planting guides for Forest Grove.