When can I plant Salpiglossis in Zone 11a

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

A common way of making a decision about when you can plant salpiglossis is to check out the USDA zone info for Zone 11a.


Planting Calendar for Salpiglossis

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

Since salpiglossis are not cold tolerant you need to wait until after the last frost has passed before you can plant them.

JanFebMarAprMayJunJulAugSepOctNovDec
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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 Zone 11a 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 salpiglossis and expect a good harvest is probably November. Any later than that and your salpiglossis may not have a chance to really do well. If you are starting your salpiglossis indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

In Zone 11a it never frosts. We should expect an average low temperature of 40°F in the coldest months of winter.

Keep in mind that USDA zone info for Zone 11a is not always accurate and our actual date of last frost is different every year. Since it never frosts in Zone 11a you do not have to be ready to cover your salpiglossis in the event of a surprise late frost.

USDA Zone Info for Zone 11a

Here is the info for USDA Zone 11a.

Average Date of Last Frost (spring)Never
Average Date of First Frost (fall)Never
Lowest Expected Low40°F
Highest Expected Low45°F

This means that on a really cold year, the coldest it will get is 40°F. On most years you should be prepared to experience lows near 45°F.

Plants to Grow in Zone 11a

You may be interested in our other planting guides for Zone 11a.