The USDA Zone info is a great tool for gardeners to help us figure out 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 first opportunity to plant monkey flower in Hillsdale can be estimated by looking at the USDA zone info.

Planting Calendar for Monkey Flower

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

You really shouldn't plant monkey flower until after the last frost when the weather gets warmer because they do not do well in cold weather.

The earliest that you can plant monkey flower in Hillsdale 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. You probably don't want to wait any later than that or else 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

In Hillsdale the average date of last frost happens on April 15. In the coldest months of winter you can expect an average low temperature of -15°F.

Always keep in mind that the actual date of last frost is just an average because it is based on the USDA zone info for Hillsdale and it will vary from year to year. Half of the time in Hillsdale you get a frost after April 15 so make sure that you are ready to protect your monkey flower if you have a late frost.

USDA Zone Info for Hillsdale

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°F

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

Plants to Grow in Hillsdale

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