The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. 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 Tulsa can be reffered to in order to determine when it's a good idea to plant ajuga.

Planting Calendar for Ajuga

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

Ajuga can survive in quite a bit of cold which tells us that you can plant them earlier in the year than other frost tender plants.

The earliest that you can plant ajuga in Tulsa 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 ajuga and expect a good harvest is probably September. If you wait any later than that and your ajuga may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your ajuga indoors.

Last Frost Date

The average date of last frost is April 15 in Tulsa. In the coldest months of winter you should expect an average low temperature of 0°F.

Just be sure to remember that USDA zone info for Tulsa is just an average and the actual date of last frost changes from year to year. Since half of the time in Tulsa last frost occurs after April 15 be ready to protect your ajuga if you have a surprise late frost.

USDA Zone Info for Tulsa

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	0°F
Highest Expected Low	5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in Tulsa

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