When to Plant Lupine in Westmont, IL

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.

One way of getting a good idea when to plant lupine is to consult the USDA zone info for Westmont.


Planting Calendar for Lupine

Frost tolerance for lupine: Tolerant of some frost.
When to plant: Up to 5 weeks before last frost.

Since lupine are one of those plants that can tolerate a little bit of cold weather you can plant them just a bit earlier in the year than more sensitive plants.

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

The earliest that you can plant lupine in Westmont is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant lupine and expect a good harvest is probably September. Any later than that and your lupine may not have a chance to really do well. You can get started a couple of weeks earlier by starting your lupine indoors.

Last Frost Date

In Westmont the average date of last frost happens on April 15. You can expect an average low temperature of -15°F in the coldest months of winter.

Just be sure to remember that USDA zone info for Westmont is just an average and the actual date of last frost can change quite a bit from year to year. Half of the time in Westmont last frost occurs after April 15 so just be sure to be ready to protect your lupine if you have one of those late frosts.

USDA Zone Info for Westmont

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 Westmont

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