Before planting it is a good idea to find your USDA Zone info to figure out 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.

By looking at the USDA zone info for Walnut it's possible to figure out when 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.

You can plant snapdragons a little bit earlier in the year because they are moderately cold tolerant.

The earliest that you can plant snapdragons in Walnut 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 snapdragons and expect a good harvest is probably October. If you wait any later than that and your snapdragons may not have a chance to fully mature. You can get started a few weeks earlier by starting your snapdragons indoors.

Last Frost Date

The average date of last frost is January 31 in Walnut. It might get as low as 30°F during the coldest months of winter.

Since the USDA zone info for Walnut is just an average the actual date of last frost is different every year. Half of the time in Walnut last frost occurs after January 31 so make sure that you are ready to protect your snapdragons in the event of a late frost.

USDA Zone Info for Walnut

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	30°F
Highest Expected Low	35°F

This means that on a really cold year, the coldest it will get is 30°F. On most years you should be prepared to experience lows near 35°F.

Plants to Grow in Walnut

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