Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You can estimate when it's a good idea to plant monkey flower in Princeton by referring to the USDA zone info.

Planting Calendar for Monkey Flower

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

Since monkey flower do not do well in cold weather it's important to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant monkey flower in Princeton 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. You can get started a few weeks earlier by starting your monkey flower indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in Princeton. In the coldest months of winter you can expect an average low temperature of -5°F.

Keep in mind that USDA zone info for Princeton is not always accurate and the actual date of last frost will vary from year to year. Since half of the time in Princeton last frost occurs after April 15 be ready to protect your monkey flower if you have a surprise late frost.

USDA Zone Info for Princeton

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 Princeton

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