Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

It's possible to estimate when to plant nasturtium by looking at the USDA zone info for Santa Barbara.

Planting Calendar for Nasturtium

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

Nasturtium are not cold tolerant which tells us that it is important to wait until it warms up after all chance of frost has passed before you can plant them.

The earliest that you can plant nasturtium in Santa Barbara 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. If you wait any later than that and 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 couple of weeks earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on January 31 in Santa Barbara. It might get as low as 30°F during the coldest months of winter.

Just be sure to remember that USDA zone info for Santa Barbara is not always accurate and the actual date of last frost changes from year to year. Half of the time in Santa Barbara you get surprised by a frost after January 31 so make sure that you are prepared to protect your nasturtium if you have one of those late frosts.

USDA Zone Info for Santa Barbara

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 Low	30°F
Highest Expected Low	35°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 Santa Barbara

You may be interested in your other planting guides for Santa Barbara.