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.

The first chance to plant aubretia in Lowell should be figured out by referring to the USDA zone info.

Planting Calendar for Aubretia

Frost tolerance for aubretia:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

Since aubretia are very cold tolerant you can plant them much earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant aubretia in Lowell is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant aubretia and expect a good harvest is probably September. If you wait any later than that and your aubretia may not have a chance to really do well. You can get started a few weeks earlier by starting your aubretia indoors.

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 -15°F.

Since the USDA zone info for Lowell may not be accurate from year to year the actual date of last frost changes from year to year. Half of the time in Lowell it frosts late in the year after April 15 so just be sure to be ready to cover your aubretia if you have a surprise late frost.

USDA Zone Info for Lowell

Here is the info for USDA Zone 5b.

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

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Lowell

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