One of the first steps you take when you are figuring out your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By referring to the USDA zone info for Hermiston you should be able to estimate when it's the best time to plant pansies.

Planting Calendar for Pansies

Frost tolerance for pansies:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

You can plant pansies much earlier in the year because they do well in cold.

The earliest that you can plant pansies in Hermiston 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 pansies and expect a good harvest is probably September. Any later than that and your pansies may not have a chance to really do well. You can get started a little bit earlier by starting your pansies indoors.

Last Frost Date

The average date of last frost is April 15 in Hermiston. You should expect an average low temperature of 0°F in the coldest months of winter.

Just be sure to remember that USDA zone info for Hermiston is not always accurate and the actual date of last frost changes from year to year. Since half of the time in Hermiston last frost occurs after April 15 be ready to protect your pansies if you have a late frost.

USDA Zone Info for Hermiston

Here is the info for USDA Zone 7a.

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

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

Plants to Grow in Hermiston

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