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

By using the USDA zone info for Bonner Springs it's possible to estimate when to plant basil.

Planting Calendar for Basil

Frost tolerance for basil:	Not tolerant of frost.
When to plant:	After the last frost has passed.

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

The earliest that you can plant basil in Bonner Springs 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 basil and expect a good harvest is probably August. You probably don't want to wait any later than that or else your basil may not have a chance to grow to maturity. If you are starting your basil indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Bonner Springs. You should expect an average low temperature of -10°F in the coldest months of winter.

Since the USDA zone info for Bonner Springs is just an average the actual date of last frost changes from year to year. Since half of the time in Bonner Springs there is a last frost after April 15 be ready to cover your basil if you have a late frost.

USDA Zone Info for Bonner Springs

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Bonner Springs

You may be interested in your other planting guides for Bonner Springs.