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

In Tolleson you can determine when it's the best time to plant monkey flower 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 the last frost when the weather gets warmer.

Since monkey flower do not do well in cold weather it's necessary to wait until after the last frost has passed before you can plant them.

The earliest that you can plant monkey flower in Tolleson is March. However, you really should wait until April 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. 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. Starting your monkey flower indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average the last frost is on February 15 in Tolleson. You can expect an average low temperature of 25°F in the coldest months of winter.

Since the USDA zone info for Tolleson is just an average the actual date of last frost is different every year. Since half of the time in Tolleson there is a last frost after February 15 be ready to cover your monkey flower in the event of a surprise late frost.

USDA Zone Info for Tolleson

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Tolleson

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