The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The USDA zone info for Phoenix can be used 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 all chance of frost has passed.

Since monkey flower are not cold tolerant you need to wait until after the last frost when the weather gets warmer before you can plant them.

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

Last Frost Date

On average the last frost when the weather gets warmer is on February 15 in Phoenix. It might get as low as 25°F during the coldest months of winter.

Just be sure to remember that USDA zone info for Phoenix is just an average and the actual date of last frost will vary from year to year. Half of the time in Phoenix there is a last frost after February 15 so just be sure to be ready to cover your monkey flower in the event of a late frost.

USDA Zone Info for Phoenix

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 Phoenix

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