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When to Plant Nasturtium in San Fernando, CA

One of the first steps you take when you are making a decision about your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By referring to the USDA zone info for San Fernando you should be able to determine when it's the best time to plant nasturtium.


Planting Calendar for Nasturtium

Frost tolerance for nasturtium: Not tolerant of frost.
When to plant: After all chance of frost has passed.

Nasturtium are not cold tolerant which means that you really should wait until it warms up after the last frost has passed before you can plant them.

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

The earliest that you can plant nasturtium in San Fernando 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 nasturtium and expect a good harvest is probably September. You probably don't want to wait any later than that or else your nasturtium may not have a chance to grow to maturity. If you are starting your nasturtium indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

On average all chance of frost has passed is on January 31 in San Fernando. You can expect an average low temperature of 30°F in the coldest months of winter.

Since the USDA zone info for San Fernando is an average the actual date of last frost can change quite a bit from year to year. Half of the time in San Fernando you get a frost after January 31 so be sure to be ready to protect your nasturtium if you have one of those late frosts.

USDA Zone Info for San Fernando

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 Fernando

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