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.

The USDA zone info for Smithville should be looked at to determine when it's possible to plant snapdragons.

Planting Calendar for Snapdragons

Frost tolerance for snapdragons:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Since snapdragons do well in moderate cold you can plant them a little bit earlier in the year than other plants that might not handle the cold.

The earliest that you can plant snapdragons in Smithville is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant snapdragons and expect a good harvest is probably September. If you wait any later than that and your snapdragons may not have a chance to really do well. If you are starting your snapdragons indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

On average the last frost is on March 15 in Smithville. In the coldest months of winter you should expect an average low temperature of 15°F.

Since the USDA zone info for Smithville is not always accurate the actual date of last frost can change quite a bit from year to year. Since half of the time in Smithville last frost occurs after March 15 be ready to cover your snapdragons in the event of a surprise late frost.

USDA Zone Info for Smithville

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°F

This means that on a really cold year, the coldest it will get is 15°F. On most years you should be prepared to experience lows near 20°F.

Plants to Grow in Smithville

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