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.

You should be able to estimate when it's possible to plant lupine by referring to the USDA zone info for Edinboro.

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 a little bit earlier than plants that are more sensitive to the cold.

The earliest that you can plant lupine in Edinboro 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. You probably don't want to wait any later than that or else your lupine may not have a chance to really do well. Starting your lupine indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average the last frost is on April 15 in Edinboro. You should expect an average low temperature of -15°F in the coldest months of winter.

Since the USDA zone info for Edinboro is not always accurate the actual date of last frost can change quite a bit from year to year. Half of the time in Edinboro you get surprised by a frost after April 15 so always be ready to cover your lupine in the event of a late frost.

USDA Zone Info for Edinboro

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 Edinboro

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