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

The best time to plant primula in Lake Jackson should be figured out by reviewing the USDA zone info.

Planting Calendar for Primula

Frost tolerance for primula:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

You can plant primula much earlier in the year because they are one of those plants that can tolerate quite a bit of cold weather.

The earliest that you can plant primula in Lake Jackson is January. However, you really should wait until February if you don't want to take any chances.

The last month that you can plant primula and expect a good harvest is probably October. Any later than that and your primula may not have a chance to fully mature. Starting your primula indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is February 15 in Lake Jackson. You should expect an average low temperature of 20°F in the coldest months of winter.

Since the USDA zone info for Lake Jackson may not be accurate from year to year the actual date of last frost changes from year to year. Since half of the time in Lake Jackson there is a last frost after February 15 be ready to cover your primula in the event of a late frost.

USDA Zone Info for Lake Jackson

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 Lake Jackson

You may be interested in your other planting guides for Lake Jackson.