Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Clayton you can estimate when it's the best time to plant lupine by looking at 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 can survive in moderate cold which means that you can plant them a bit earlier in the year than other plants that might not handle the cold.

The earliest that you can plant lupine in Clayton 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 grow to maturity. Starting your lupine indoors is a great way to get them started a little bit earlier.

Last Frost Date

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

Always keep in mind that USDA zone info for Clayton may not be accurate from year to year and the actual date of last frost is different every year. Half of the time in Clayton there is a last frost after February 15 so make sure that you are prepared to protect your lupine in the event of one of those late frosts.

USDA Zone Info for Clayton

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 Clayton

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