One of the first steps you take when you are determining your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You can figure out when you can plant lupine in Waukesha by reviewing the USDA zone info.

Planting Calendar for Lupine

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

Lupine do well in moderate cold which means that you can plant them earlier than other frost tender plants.

The earliest that you can plant lupine in Waukesha 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 grow to maturity. You can get started a little bit earlier by starting your lupine indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Waukesha. In the coldest months of winter you should expect an average low temperature of -15°F.

Keep in mind that USDA zone info for Waukesha may not be accurate from year to year and the actual date of last frost is different every year. Since half of the time in Waukesha you get a frost after April 15 be ready to cover your lupine in the event of a surprise late frost.

USDA Zone Info for Waukesha

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 Waukesha

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