One of the first steps you take when you are figuring out 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.

The earliest that you can plant swan river daisy in Harlingen should be figured out by looking at the USDA zone info.

Planting Calendar for Swan River Daisy

Frost tolerance for swan river daisy:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

It's probably a bad idea to plant swan river daisy until after the last frost when the weather gets warmer because they do not do well in cold weather.

The earliest that you can plant swan river daisy in Harlingen is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant swan river daisy and expect a good harvest is probably September. Any later than that and your swan river daisy may not have a chance to fully mature. You can get started a little bit earlier by starting your swan river daisy indoors.

Last Frost Date

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

It's important to remember that USDA zone info for Harlingen may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Half of the time in Harlingen there is a last frost after February 15 so be sure to be ready to cover your swan river daisy if you have 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.