The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You can determine when to plant achimenes in Yakima by looking at the USDA zone info.

Planting Calendar for Achimenes

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

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

The earliest that you can plant achimenes in Yakima 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 achimenes and expect a good harvest is probably August. You probably don't want to wait any later than that or else your achimenes may not have a chance to grow to maturity. You can get started a little bit earlier by starting your achimenes indoors.

Last Frost Date

On average the last frost is on April 15 in Yakima. In the coldest months of winter you should expect an average low temperature of -5°F.

Keep in mind that USDA zone info for Yakima is just an average and the actual date of last frost can change quite a bit from year to year. Since half of the time in Yakima you get a frost after April 15 be ready to protect your achimenes if you have a late frost.

USDA Zone Info for Yakima

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Yakima

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