Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The earliest that you can plant nolana in Zone 4b can be figured out by looking at the USDA zone info.

Planting Calendar for Nolana

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

Nolana require warm weather which tells us that you have to wait until it warms up after all chance of frost has passed before you can plant them.

The earliest that you can plant nolana in Zone 4b is May. However, you really should wait until June if you don't want to take any chances.

The last month that you can plant nolana and expect a good harvest is probably August. Any later than that and your nolana may not have a chance to really do well. Starting your nolana indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

In Zone 4b the average date of last frost happens on May 15. It might get as low as -25°F during the coldest months of winter.

Just be sure to remember that USDA zone info for Zone 4b is not always accurate and the actual date of last frost is different every year. Half of the time in Zone 4b there is a last frost after May 15 so always be ready to protect your nolana if you have one of those late frosts.

USDA Zone Info for Zone 4b

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°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 -20°F.

Plants to Grow in Zone 4b

You may be interested in your other planting guides for Zone 4b.