One of the best tools that you have as gardeners to help us figure out your gardening schedule is the 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.

You can determine when it's possible to plant achimenes in Bristow by looking at the USDA zone info.

Planting Calendar for Achimenes

Frost tolerance for achimenes:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

Since achimenes are not cold tolerant you must wait until after the last frost has passed before you can plant them.

The earliest that you can plant achimenes in Bristow 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 achimenes and expect a good harvest is probably August. Any later than that and your achimenes may not have a chance to fully mature. If you are starting your achimenes indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

In Bristow the average date of last frost happens on April 15. You can expect an average low temperature of 0°F in the coldest months of winter.

Since the USDA zone info for Bristow is just an average the actual date of last frost can change quite a bit from year to year. Half of the time in Bristow you get surprised by a frost after April 15 so always be ready to cover your achimenes in the event of a surprise late frost.

USDA Zone Info for Bristow

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	0°F
Highest Expected Low	5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in Bristow

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