One of the best tools that you have as gardeners to help us determine 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.

A common way of figuring out when you can plant lupine is to examine the USDA zone info for Show Low.

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 tells us that you can plant them earlier than other frost tender plants.

The earliest that you can plant lupine in Show Low 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 few weeks earlier by starting your lupine indoors.

Last Frost Date

The average date of last frost is April 15 in Show Low. In the coldest months of winter you should expect an average low temperature of -5°F.

Since the USDA zone info for Show Low is an average the actual date of last frost is different every year. Since half of the time in Show Low you get a frost after April 15 be ready to protect your lupine in the event of a surprise late frost.

USDA Zone Info for Show Low

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Show Low

You may be interested in your other planting guides for Show Low.