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.

You can estimate when it's a good idea to plant sweet peas in Rome by checking out the USDA zone info.

Planting Calendar for Sweet Peas

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

Sweet Peas do well in very little cold which means that you can plant them slightly earlier in the year than other frost tender plants.

The earliest that you can plant sweet peas in Rome is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant sweet peas and expect a good harvest is probably August. If you wait any later than that and your sweet peas may not have a chance to fully mature. You can get started a few weeks earlier by starting your sweet peas indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Rome. You can expect an average low temperature of -20°F in the coldest months of winter.

Just be sure to remember that USDA zone info for Rome is an average and the actual date of last frost is different every year. Half of the time in Rome you get surprised by a frost after April 15 so make sure that you are prepared to protect your sweet peas if you have a late frost.

USDA Zone Info for Rome

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-20°F
Highest Expected Low	-15°F

This means that on a really cold year, the coldest it will get is -20°F. On most years you should be prepared to experience lows near -15°F.

Plants to Grow in Rome

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