Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You can figure out when it's a good idea to plant balsam in Roma by referring to the USDA zone info.

Planting Calendar for Balsam

Frost tolerance for balsam:	Not tolerant of frost.
When to plant:	After the last frost.

Balsam do not do well in cold weather which means that you have to wait until it warms up after the last frost before you can plant them.

The earliest that you can plant balsam in Roma 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 balsam and expect a good harvest is probably September. Any later than that and your balsam may not have a chance to fully mature. You can get started a few weeks earlier by starting your balsam indoors.

Last Frost Date

The average date of last frost is February 15 in Roma. In the coldest months of winter you can expect an average low temperature of 25°F.

Since the USDA zone info for Roma is not always accurate the actual date of last frost can change quite a bit from year to year. Since half of the time in Roma it frosts late in the year after February 15 be ready to protect your balsam if you have one of those late frosts.

USDA Zone Info for Roma

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°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 30°F.

Plants to Grow in Roma

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