When to Plant Sunflowers in Capitola, CA

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.

It's a good idea to estimate when it's possible to plant sunflowers by looking at the USDA zone info for Capitola.


Planting Calendar for Sunflowers

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

Sunflowers require warm weather which tells us that you need to 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 sunflowers
Possibly ok, but a risky time to plant sunflowers
Probably not a good time to plant sunflowers

The earliest that you can plant sunflowers in Capitola 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 sunflowers and expect a good harvest is probably September. Any later than that and your sunflowers may not have a chance to fully mature. You can get started a little bit earlier by starting your sunflowers indoors.

Last Frost Date

On average all chance of frost has passed is on February 15 in Capitola. You can expect an average low temperature of 25°F in the coldest months of winter.

Since the USDA zone info for Capitola is an average the actual date of last frost can change quite a bit from year to year. Half of the time in Capitola last frost occurs after February 15 so always be ready to cover your sunflowers if you have a surprise late frost.

USDA Zone Info for Capitola

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 Low25°F
Highest Expected Low30°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 Capitola

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