When to Plant Salpiglossis in Jacksonville, TX

The USDA Zone info is a great tool for gardeners to help us estimate 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 you can plant salpiglossis by reviewing the USDA zone info for Jacksonville.


Planting Calendar for Salpiglossis

Frost tolerance for salpiglossis: Not tolerant of frost.
When to plant: After the last frost has passed.

Salpiglossis do not do well in cold weather which tells us that you must wait until it warms up after the last frost when the weather gets warmer before you can plant them.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant salpiglossis
Possibly ok, but a risky time to plant salpiglossis
Probably not a good time to plant salpiglossis

The earliest that you can plant salpiglossis in Jacksonville is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant salpiglossis and expect a good harvest is probably August. Any later than that and your salpiglossis may not have a chance to really do well. Starting your salpiglossis indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

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

Always keep in mind that USDA zone info for Jacksonville is an average and the actual date of last frost changes from year to year. Half of the time in Jacksonville you get surprised by a frost after March 15 so just be sure to be ready to protect your salpiglossis if you have a surprise late frost.

USDA Zone Info for Jacksonville

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)March 15
Average Date of First Frost (fall)November 15
Lowest Expected Low15°F
Highest Expected Low20°F

This means that on a really cold year, the coldest it will get is 15°F. On most years you should be prepared to experience lows near 20°F.

Plants to Grow in Jacksonville

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