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.

By referring to the USDA zone info for Norwalk it's possible to figure out when it's the best time to plant tithonia.

Planting Calendar for Tithonia

Frost tolerance for tithonia:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

Since tithonia require warm weather you really should wait until after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant tithonia in Norwalk 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 tithonia and expect a good harvest is probably September. Any later than that and your tithonia may not have a chance to grow to maturity. Starting your tithonia indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

On average all chance of frost has passed is on January 31 in Norwalk. In the coldest months of winter you should expect an average low temperature of 35°F.

Keep in mind that the actual date of last frost is just an average because it is based on the USDA zone info for Norwalk and it changes from year to year. Since half of the time in Norwalk you get surprised by a frost after January 31 be ready to cover your tithonia in the event of one of those late frosts.

USDA Zone Info for Norwalk

Here is the info for USDA Zone 10b.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	35°F
Highest Expected Low	40°F

This means that on a really cold year, the coldest it will get is 35°F. On most years you should be prepared to experience lows near 40°F.

Plants to Grow in Norwalk

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