Before planting it is a good idea to find your USDA Zone info to figure out 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.

The earliest that you can plant banana in San Luis Obispo can be estimated by using the USDA zone info.

Planting Calendar for Banana

Frost tolerance for banana:	Not tolerant of frost.
When to plant:	After the last frost.

It's not a good idea to plant banana until after the last frost has passed because they require warm weather.

The earliest that you can plant banana in San Luis Obispo is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant banana and expect a good harvest is probably September. If you wait any later than that and your banana may not have a chance to fully mature. If you are starting your banana indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

On average the last frost has passed is on February 15 in San Luis Obispo. You can expect an average low temperature of 25°F in the coldest months of winter.

Since the USDA zone info for San Luis Obispo is an average the actual date of last frost is different every year. Since half of the time in San Luis Obispo last frost occurs after February 15 be ready to cover your banana if you have a surprise late frost.

USDA Zone Info for San Luis Obispo

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 San Luis Obispo

You may be interested in your other planting guides for San Luis Obispo.