Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

One way of determining when it's the best time to plant basil is to use the USDA zone info for Henderson.

Planting Calendar for Basil

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

It's probably a bad idea to plant basil until after the last frost because they do not do well in cold weather.

The earliest that you can plant basil in Henderson 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 basil and expect a good harvest is probably September. You probably don't want to wait any later than that or else your basil may not have a chance to really do well. You can get started a couple of weeks earlier by starting your basil indoors.

Last Frost Date

The average date of last frost is February 15 in Henderson. It might get as low as 20°F during the coldest months of winter.

Just be sure to remember that USDA zone info for Henderson may not be accurate from year to year and the actual date of last frost is different every year. Half of the time in Henderson it frosts late in the year after February 15 so be sure to be ready to cover your basil if you have a surprise late frost.

USDA Zone Info for Henderson

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Henderson

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