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 USDA zone info for Keene can be reviewed to figure out when to plant matricaria.

Planting Calendar for Matricaria

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

Since matricaria do well in moderate cold you can plant them a little bit earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant matricaria in Keene 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. If you wait any later than that and your matricaria may not have a chance to really do well. You can get started a few weeks earlier by starting your matricaria indoors.

Last Frost Date

On average all chance of frost has passed is on March 15 in Keene. You can expect an average low temperature of 10°F in the coldest months of winter.

It's important to remember that USDA zone info for Keene is an average and the actual date of last frost changes from year to year. Since half of the time in Keene last frost occurs after March 15 be ready to cover your matricaria if you have a surprise late frost.

USDA Zone Info for Keene

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°F

This means that on a really cold year, the coldest it will get is 10°F. On most years you should be prepared to experience lows near 15°F.

Plants to Grow in Keene

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