One of the best tools that you have as gardeners to help us determine your gardening schedule is the 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.

By looking at the USDA zone info for Lowell you should be able to figure out when it's a good idea to plant swan river daisy.

Planting Calendar for Swan River Daisy

Frost tolerance for swan river daisy:	Not tolerant of frost.
When to plant:	After the last frost has passed.

Since swan river daisy require warm weather you really should wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant swan river daisy in Lowell 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 swan river daisy and expect a good harvest is probably August. Any later than that and your swan river daisy may not have a chance to really do well. Starting your swan river daisy indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average all chance of frost has passed is on April 15 in Lowell. In the coldest months of winter you should expect an average low temperature of -10°F.

Since the USDA zone info for Lowell is an average the actual date of last frost can change quite a bit from year to year. Half of the time in Lowell last frost occurs after April 15 so make sure that you are prepared to cover your swan river daisy in the event of one of those late frosts.

USDA Zone Info for Lowell

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Lowell

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