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When to Plant Geranium in Corte Madera, CA

The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The first chance to plant geranium in Corte Madera should be determined by checking out the USDA zone info.


Planting Calendar for Geranium

Frost tolerance for geranium: Not tolerant of frost.
When to plant: After the last frost when the weather gets warmer.

Geranium do not do well in cold weather which tells us that you really should wait until it warms up after the last frost when the weather gets warmer before you can plant them.

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

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

Last Frost Date

In Corte Madera the average date of last frost happens on January 31. It might get as low as 30°F during the coldest months of winter.

It's important to remember that USDA zone info for Corte Madera is not always accurate and the actual date of last frost can change quite a bit from year to year. Half of the time in Corte Madera there is a last frost after January 31 so make sure that you are prepared to protect your geranium if you have a surprise late frost.

USDA Zone Info for Corte Madera

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 Corte Madera

You may be interested in your other planting guides for Corte Madera.