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

You can estimate when to plant lupine in Fairfax by using 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 a little bit earlier than other plants that might not handle the cold.

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

The last month that you can plant lupine and expect a good harvest is probably October. If you wait any later than that and your lupine may not have a chance to fully mature. Starting your lupine indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is February 15 in Fairfax. You can expect an average low temperature of 25°F in the coldest months of winter.

Just be sure to remember that USDA zone info for Fairfax may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Since half of the time in Fairfax it frosts late in the year after February 15 be ready to protect your lupine if you have a late frost.

USDA Zone Info for Fairfax

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Fairfax

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