One of the first steps you take when you are getting a good idea your gardening schedule is find your 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.

It's possible to figure out when it's the best time to plant forget-me-not by checking out the USDA zone info for Tulsa.

Planting Calendar for Forget-Me-Not

Frost tolerance for forget-me-not:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Since forget-me-not are moderately cold tolerant you can plant them just a bit earlier in the year than other frost tender plants.

The earliest that you can plant forget-me-not 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 forget-me-not and expect a good harvest is probably September. You probably don't want to wait any later than that or else your forget-me-not may not have a chance to really do well. You can get started a couple of weeks earlier by starting your forget-me-not indoors.

Last Frost Date

In Tulsa the average date of last frost happens on April 15. It might get as low as 0°F during the coldest months of winter.

Since the USDA zone info for Tulsa may not be accurate from year to year the actual date of last frost changes from year to year. Half of the time in Tulsa last frost occurs after April 15 so make sure that you are ready to protect your forget-me-not if you have a 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.