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.

It's a good idea to estimate when it's possible to plant strawflowers by reviewing the USDA zone info for Campbell.

Planting Calendar for Strawflowers

Frost tolerance for strawflowers:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Since strawflowers do ok in moderate cold you can plant them a bit earlier in the year than more sensitive plants.

The earliest that you can plant strawflowers in Campbell 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 strawflowers and expect a good harvest is probably September. You probably don't want to wait any later than that or else your strawflowers may not have a chance to grow to maturity. Starting your strawflowers indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is February 15 in Campbell. It might get as low as 25°F during the coldest months of winter.

Remember that USDA zone info for Campbell is just an average and the actual date of last frost will vary from year to year. Half of the time in Campbell you get a frost after February 15 so always be ready to cover your strawflowers if you have one of those late frosts.

USDA Zone Info for Campbell

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 Campbell

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