The USDA Zone info is a great tool for gardeners to help us estimate 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.

The first chance to plant matricaria in Kennewick should be determined by using the USDA zone info.

Planting Calendar for Matricaria

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

You can plant matricaria a little bit earlier in the year because they are one of those plants that can tolerate a little bit of cold weather.

The earliest that you can plant matricaria in Kennewick 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 matricaria and expect a good harvest is probably September. You probably don't want to wait any later than that or else your matricaria may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your matricaria indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Kennewick. In the coldest months of winter you should expect an average low temperature of 0°F.

Always keep in mind that USDA zone info for Kennewick may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Half of the time in Kennewick it frosts late in the year after April 15 so make sure that you are prepared to cover your matricaria in the event of a surprise late frost.

USDA Zone Info for Kennewick

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 Kennewick

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