One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You should be able to estimate when to plant nierembergia by referring to the USDA zone info for Thomaston.

Planting Calendar for Nierembergia

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

Since nierembergia require warm weather it's important to wait until after the last frost before you can plant them.

The earliest that you can plant nierembergia in Thomaston 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 nierembergia and expect a good harvest is probably August. Any later than that and your nierembergia may not have a chance to fully mature. You can get started a little bit earlier by starting your nierembergia indoors.

Last Frost Date

The average date of last frost is March 15 in Thomaston. It might get as low as 10°F during the coldest months of winter.

Always keep in mind that USDA zone info for Thomaston may not be accurate from year to year and the actual date of last frost changes from year to year. Half of the time in Thomaston there is a last frost after March 15 so be sure to be ready to protect your nierembergia if you have a late frost.

USDA Zone Info for Thomaston

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°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 15°F.

Plants to Grow in Thomaston

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