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.

A common way of making a decision about when it's possible to plant delphinium is to look at the USDA zone info for Deerfield Beach.

Planting Calendar for Delphinium

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

Delphinium are barely cold tolerant which tells us that you can plant them slightly earlier than more sensitive plants.

The earliest that you can plant delphinium in Deerfield Beach 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 delphinium and expect a good harvest is probably September. If you wait any later than that and your delphinium may not have a chance to grow to maturity. Starting your delphinium indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is January 31 in Deerfield Beach. It might get as low as 35°F during the coldest months of winter.

Since the USDA zone info for Deerfield Beach is an average the actual date of last frost will vary from year to year. Half of the time in Deerfield Beach you get surprised by a frost after January 31 so make sure that you are prepared to protect your delphinium in the event of one of those late frosts.

USDA Zone Info for Deerfield Beach

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 Deerfield Beach

You may be interested in your other planting guides for Deerfield Beach.