The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The best time to plant spinach in Newberg can be determined by using the USDA zone info.

Planting Calendar for Spinach

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

Since spinach do well in moderate cold you can plant them just a bit earlier in the year than other frost tender plants.

The earliest that you can plant spinach in Newberg 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 spinach and expect a good harvest is probably September. Any later than that and your spinach may not have a chance to fully mature. Starting your spinach indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is March 15 in Newberg. You can expect an average low temperature of 15°F in the coldest months of winter.

Since the USDA zone info for Newberg is just an average the actual date of last frost is different every year. Half of the time in Newberg there is a last frost after March 15 so always be ready to protect your spinach in the event of one of those late frosts.

USDA Zone Info for Newberg

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 Low	15°F
Highest Expected Low	20°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 Newberg

You may be interested in your other planting guides for Newberg.