Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The earliest that you can plant euphorbia in Harlingen should be figured out by checking out the USDA zone info.

Planting Calendar for Euphorbia

Frost tolerance for euphorbia:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Euphorbia tend to make it in very little cold which means that you can plant them a bit earlier in the year than other frost tender plants.

The earliest that you can plant euphorbia in Harlingen 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 euphorbia and expect a good harvest is probably September. Any later than that and your euphorbia may not have a chance to really do well. You can get started a few weeks earlier by starting your euphorbia indoors.

Last Frost Date

The average date of last frost is February 15 in Harlingen. In the coldest months of winter you can expect an average low temperature of 25°F.

Remember that USDA zone info for Harlingen may not be accurate from year to year and the actual date of last frost changes from year to year. Half of the time in Harlingen you get a frost after February 15 so make sure that you are ready to protect your euphorbia in the event of one of those late frosts.

USDA Zone Info for Harlingen

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Harlingen

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