When to Plant Salpiglossis in Darien, IL

One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The first opportunity to plant salpiglossis in Darien can be estimated by checking out the USDA zone info.


Planting Calendar for Salpiglossis

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

You should not plant salpiglossis until after the last frost because they require warm weather.

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 Darien 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 grow to maturity. You can get started a little bit earlier by starting your salpiglossis indoors.

Last Frost Date

In Darien the average date of last frost happens on April 15. In the coldest months of winter you should expect an average low temperature of -15°F.

Remember that USDA zone info for Darien is an average and the actual date of last frost can change quite a bit from year to year. Since half of the time in Darien there is a last frost after April 15 be ready to protect your salpiglossis if you have a late frost.

USDA Zone Info for Darien

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 Darien

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