The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You can determine when to plant penstemon in North Palm Beach by reviewing the USDA zone info.

Planting Calendar for Penstemon

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

Penstemon do well in moderate cold which means that you can start planting them earlier than plants that are more sensitive to the cold.

The earliest that you can plant penstemon in North Palm Beach 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 penstemon and expect a good harvest is probably October. Any later than that and your penstemon may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your penstemon indoors.

Last Frost Date

The average date of last frost is January 31 in North Palm Beach. You should expect an average low temperature of 35°F in the coldest months of winter.

Since the USDA zone info for North Palm Beach may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Half of the time in North Palm Beach last frost occurs after January 31 so make sure that you are prepared to cover your penstemon in the event of a surprise late frost.

USDA Zone Info for North Palm 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 North Palm Beach

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