One of the first steps you take when you are estimating your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The USDA zone info for Cranston should be read to figure out when it's possible to plant argyranthemum.

Planting Calendar for Argyranthemum

Frost tolerance for argyranthemum:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

It's not a good idea to plant argyranthemum until after the last frost because they are not cold tolerant.

The earliest that you can plant argyranthemum in Cranston is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant argyranthemum and expect a good harvest is probably August. Any later than that and your argyranthemum may not have a chance to fully mature. You can get started a little bit earlier by starting your argyranthemum indoors.

Last Frost Date

In Cranston the average date of last frost happens on April 15. It might get as low as -5°F during the coldest months of winter.

Keep in mind that the actual date of last frost is an average because it is based on the USDA zone info for Cranston and it changes from year to year. Since half of the time in Cranston you get surprised by a frost after April 15 be ready to protect your argyranthemum in the event of a late frost.

USDA Zone Info for Cranston

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Cranston

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