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.

A common way of estimating when you can plant monkey flower is to use the USDA zone info for Manassas.

Planting Calendar for Monkey Flower

Frost tolerance for monkey flower:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

Since monkey flower are not cold tolerant you must wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant monkey flower in Manassas 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 monkey flower and expect a good harvest is probably August. Any later than that and your monkey flower may not have a chance to grow to maturity. Starting your monkey flower indoors is a great way to get them started a little bit earlier.

Last Frost Date

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

Keep in mind that USDA zone info for Manassas is an average and the actual date of last frost can change quite a bit from year to year. Since half of the time in Manassas you get a frost after April 15 be ready to cover your monkey flower in the event of one of those late frosts.

USDA Zone Info for Manassas

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 Manassas

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