Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You should be able to estimate when it's the best time to plant salpiglossis by reviewing the USDA zone info for Mahomet.

Planting Calendar for Salpiglossis

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

It's a bad idea to plant salpiglossis until after the last frost because they require warm weather.

The earliest that you can plant salpiglossis in Mahomet 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. If you wait 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

The average date of last frost is April 15 in Mahomet. You can expect an average low temperature of -15°F in the coldest months of winter.

Since the USDA zone info for Mahomet is an average the actual date of last frost will vary from year to year. Since half of the time in Mahomet you get surprised by a frost after April 15 be ready to protect your salpiglossis in the event of a surprise late frost.

USDA Zone Info for Mahomet

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°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 -10°F.

Plants to Grow in Mahomet

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