One of the first steps you take when you are figuring out your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The USDA zone info for Redwood City can be read to determine when it's possible to plant rudbeckia.

Planting Calendar for Rudbeckia

Frost tolerance for rudbeckia:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Rudbeckia do well in moderate cold which means that you can start planting them earlier than other plants that might not handle the cold.

The earliest that you can plant rudbeckia in Redwood City is January. However, you really should wait until February if you don't want to take any chances.

The last month that you can plant rudbeckia and expect a good harvest is probably October. If you wait any later than that and your rudbeckia may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your rudbeckia indoors.

Last Frost Date

In Redwood City the average date of last frost happens on February 15. You can expect an average low temperature of 25°F in the coldest months of winter.

Just be sure to remember that USDA zone info for Redwood City may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Since half of the time in Redwood City there is a last frost after February 15 be ready to cover your rudbeckia in the event of one of those late frosts.

USDA Zone Info for Redwood City

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 Redwood City

You may be interested in your other planting guides for Redwood City.