The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The best time to plant salpiglossis in Cedarburg should be estimated by using the USDA zone info.

Planting Calendar for Salpiglossis

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

It's not a good idea to plant salpiglossis until after all chance of frost has passed because they are not cold tolerant.

The earliest that you can plant salpiglossis in Cedarburg 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. If you are starting your salpiglossis indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

On average the last frost has passed is on April 15 in Cedarburg. It might get as low as -15°F during the coldest months of winter.

Just be sure to remember that USDA zone info for Cedarburg is just an average and the actual date of last frost changes from year to year. Half of the time in Cedarburg it frosts late in the year after April 15 so make sure that you are prepared to protect your salpiglossis if you have one of those late frosts.

USDA Zone Info for Cedarburg

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 Cedarburg

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