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.

You will be able to figure out when to plant pincushion flower by referring to the USDA zone info for Del Rio.

Planting Calendar for Pincushion Flower

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

Pincushion Flower do well in moderate cold which means that you can plant them a little bit earlier than other frost tender plants.

The earliest that you can plant pincushion flower 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 pincushion flower and expect a good harvest is probably October. If you wait any later than that and your pincushion flower may not have a chance to fully mature. If you are starting your pincushion flower indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

On average all chance of frost has passed is on February 15 in Del Rio. 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. Since half of the time in Del Rio you get a frost after February 15 be ready to cover your pincushion flower in the event of a surprise late frost.

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.