One of the best tools that you have as gardeners to help us figure out 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.

By reviewing the USDA zone info for Pottstown it's possible to figure out when you can plant monkey flower.

Planting Calendar for Monkey Flower

Frost tolerance for monkey flower:	Not tolerant of frost.
When to plant:	After the last frost has passed.

Since monkey flower are not cold tolerant it's necessary to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant monkey flower in Pottstown 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. If you wait any later than that and your monkey flower may not have a chance to fully mature. If you are starting your monkey flower indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

On average the last frost has passed is on April 15 in Pottstown. You should expect an average low temperature of -5°F in the coldest months of winter.

Just be sure to remember that USDA zone info for Pottstown is just an average and the actual date of last frost can change quite a bit from year to year. Half of the time in Pottstown it frosts late in the year after April 15 so always be ready to cover your monkey flower in the event of a surprise late frost.

USDA Zone Info for Pottstown

Here is the info for USDA Zone 6b.

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

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

Plants to Grow in Pottstown

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