Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A common way of determining when it's a good idea to plant lupine is to check out the USDA zone info for Osawatomie.

Planting Calendar for Lupine

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

Lupine are moderately cold tolerant which tells us that you can plant them earlier than other plants that might not handle the cold.

The earliest that you can plant lupine in Osawatomie 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. If you wait any later than that and your lupine may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your lupine indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in Osawatomie. In the coldest months of winter you should expect an average low temperature of -10°F.

Keep in mind that USDA zone info for Osawatomie is not always accurate and the actual date of last frost can change quite a bit from year to year. Half of the time in Osawatomie you get surprised by a frost after April 15 so always be ready to protect your lupine if you have one of those late frosts.

USDA Zone Info for Osawatomie

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Osawatomie

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