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.

One way of making a decision about when it's possible to plant swan river daisy is to look at the USDA zone info for San Bernardino.

Planting Calendar for Swan River Daisy

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

Since swan river daisy are not cold tolerant you must wait until after the last frost before you can plant them.

The earliest that you can plant swan river daisy in San Bernardino 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 swan river daisy and expect a good harvest is probably September. If you wait any later than that and your swan river daisy may not have a chance to grow to maturity. Starting your swan river daisy indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average the last frost is on February 15 in San Bernardino. You can expect an average low temperature of 25°F in the coldest months of winter.

Remember that USDA zone info for San Bernardino is just an average and the actual date of last frost changes from year to year. Since half of the time in San Bernardino last frost occurs after February 15 be ready to protect your swan river daisy if you have a surprise late frost.

USDA Zone Info for San Bernardino

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 Low	25°F
Highest Expected Low	30°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 San Bernardino

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