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

By reviewing the USDA zone info for Scottsdale you should be able to figure out when it's the best time to plant squash.

Planting Calendar for Squash

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

You should not plant squash until after the last frost because they are not cold tolerant.

The earliest that you can plant squash in Scottsdale 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 squash and expect a good harvest is probably September. If you wait any later than that and your squash may not have a chance to really do well. You can get started a couple of weeks earlier by starting your squash indoors.

Last Frost Date

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

Just be sure to remember that USDA zone info for Scottsdale may not be accurate from year to year and the actual date of last frost changes from year to year. Since half of the time in Scottsdale you get surprised by a frost after February 15 be ready to cover your squash if you have a late frost.

USDA Zone Info for Scottsdale

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 Scottsdale

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