One of the first steps you take when you are figuring out your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The best time to plant lupine in Monrovia can be figured out by checking out 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 tells us that you can get them planted earlier than more sensitive plants.

The earliest that you can plant lupine in Monrovia 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. You can get started a few weeks earlier by starting your lupine indoors.

Last Frost Date

The average date of last frost is January 31 in Monrovia. In the coldest months of winter you should expect an average low temperature of 30°F.

Keep in mind that the actual date of last frost may not be accurate from year to year because it is based on the USDA zone info for Monrovia and it is different every year. Since half of the time in Monrovia it frosts late in the year after January 31 be ready to protect your lupine in the event of a late frost.

USDA Zone Info for Monrovia

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	30°F
Highest Expected Low	35°F

This means that on a really cold year, the coldest it will get is 30°F. On most years you should be prepared to experience lows near 35°F.

Plants to Grow in Monrovia

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