One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The first chance to plant yarrow in Monroe can be determined by using the USDA zone info.

Planting Calendar for Yarrow

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

Yarrow tend to make it in pretty solid cold which means that you can plant them earlier in the year than other frost tender plants.

The earliest that you can plant yarrow in Monroe 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 yarrow and expect a good harvest is probably September. You probably don't want to wait any later than that or else your yarrow may not have a chance to fully mature. You can get started a few weeks earlier by starting your yarrow indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on March 15 in Monroe. It might get as low as 10°F during the coldest months of winter.

Remember that USDA zone info for Monroe is not always accurate and the actual date of last frost will vary from year to year. Half of the time in Monroe you get surprised by a frost after March 15 so make sure that you are prepared to protect your yarrow in the event of one of those late frosts.

USDA Zone Info for Monroe

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 Monroe

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