When to Plant Fanflower in San Marino, CA

One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You can determine when it's the best time to plant fanflower in San Marino by reviewing the USDA zone info.


Planting Calendar for Fanflower

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

Since fanflower do not do well in cold weather you have to wait until after the last frost before you can plant them.

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

The earliest that you can plant fanflower in San Marino is February. However, you really should wait until March if you don't want to take any chances.

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

Last Frost Date

The average date of last frost is January 31 in San Marino. It might get as low as 30°F during the coldest months of winter.

It's important to remember that USDA zone info for San Marino is not always accurate and the actual date of last frost is different every year. Since half of the time in San Marino it frosts late in the year after January 31 be ready to cover your fanflower if you have one of those late frosts.

USDA Zone Info for San Marino

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 Low30°F
Highest Expected Low35°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 San Marino

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