The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You can determine when it's possible to plant larkspur in Norwalk by checking out the USDA zone info.

Planting Calendar for Larkspur

Frost tolerance for larkspur:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

Larkspur tend to make it in a bit of cold which tells us that you can plant them earlier in the year than more sensitive plants.

The earliest that you can plant larkspur in Norwalk 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 larkspur and expect a good harvest is probably October. Any later than that and your larkspur may not have a chance to grow to maturity. You can get started a little bit earlier by starting your larkspur indoors.

Last Frost Date

In Norwalk the average date of last frost happens on January 31. You can expect an average low temperature of 35°F in the coldest months of winter.

Since the USDA zone info for Norwalk is an average the actual date of last frost can change quite a bit from year to year. Since half of the time in Norwalk it frosts late in the year after January 31 be ready to protect your larkspur if you have a late frost.

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.