One of the best tools that you have as gardeners to help us estimate 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.

In Gresham you can estimate when it's possible to plant tagetes by using the USDA zone info.

Planting Calendar for Tagetes

Frost tolerance for tagetes:	Not tolerant of frost.
When to plant:	After the last frost has passed.

Since tagetes are not cold tolerant it's necessary to wait until after the last frost before you can plant them.

The earliest that you can plant tagetes in Gresham is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant tagetes and expect a good harvest is probably August. Any later than that and your tagetes may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your tagetes indoors.

Last Frost Date

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

Just be sure to remember that USDA zone info for Gresham is not always accurate and the actual date of last frost changes from year to year. Half of the time in Gresham there is a last frost after March 15 so make sure that you are ready to protect your tagetes if you have a surprise late frost.

USDA Zone Info for Gresham

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 Gresham

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