The USDA Zone info is a great tool for gardeners to help us determine 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.

In Del Rio you can determine when it's the best time to plant forget-me-not by reviewing the USDA zone info.

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.

Forget-Me-Not are moderately cold tolerant which means that you can plant them a little bit earlier than more sensitive plants.

The earliest that you can plant forget-me-not in Del Rio 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 forget-me-not and expect a good harvest is probably October. If you wait any later than that and your forget-me-not may not have a chance to fully mature. Starting your forget-me-not indoors is a great way to get them started a little bit earlier.

Last Frost Date

In Del Rio the average date of last frost happens on February 15. It might get as low as 20°F during the coldest months of winter.

Since the USDA zone info for Del Rio is not always accurate the actual date of last frost is different every year. Half of the time in Del Rio it frosts late in the year after February 15 so just be sure to be ready to protect your forget-me-not if you have one of those late frosts.

USDA Zone Info for Del Rio

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Del Rio

You may be interested in your other planting guides for Del Rio.