One of the first steps you take when you are making a decision about your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The first chance to plant monkey flower in Ontario should be figured out by checking out 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.

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 Ontario 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 monkey flower and expect a good harvest is probably September. If you wait any later than that and your monkey flower may not have a chance to fully mature. You can get started a few weeks earlier by starting your monkey flower indoors.

Last Frost Date

The average date of last frost is January 31 in Ontario. You can expect an average low temperature of 30°F in the coldest months of winter.

Keep in mind that USDA zone info for Ontario is just an average and the actual date of last frost will vary from year to year. Since half of the time in Ontario last frost occurs after January 31 be ready to protect your monkey flower if you have one of those late frosts.

USDA Zone Info for Ontario

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	30°F
Highest Expected Low	35°F

This means that on a really cold year, the coldest it will get is 30°F. On most years you should be prepared to experience lows near 35°F.

Plants to Grow in Ontario

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