When to Plant Lupine in Tracy, CA

One of the first steps you take when you are determining 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 USDA zone info for Tracy can be reffered to in order to figure out when it's the best time to plant lupine.


Planting Calendar for Lupine

Frost tolerance for lupine: Tolerant of some frost.
When to plant: Up to 5 weeks before last frost.

Lupine are one of those plants that can tolerate a little bit of cold weather which means that you can plant them earlier than other frost tender plants.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant lupine
Possibly ok, but a risky time to plant lupine
Probably not a good time to plant lupine

The earliest that you can plant lupine in Tracy 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 really do well. Starting your lupine indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on February 15 in Tracy. In the coldest months of winter you should expect an average low temperature of 20°F.

Since the USDA zone info for Tracy is an average the actual date of last frost changes from year to year. Since half of the time in Tracy you get surprised by a frost after February 15 be ready to cover your lupine if you have a late frost.

USDA Zone Info for Tracy

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)February 15
Average Date of First Frost (fall)December 15
Lowest Expected Low20°F
Highest Expected Low25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Tracy

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