When to Plant Aubretia in Zone 3b

One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The USDA zone info for Zone 3b should be used to determine when it's possible to plant aubretia.

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Planting Calendar for Aubretia

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

You can plant aubretia much earlier in the year because they do well in cold.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant aubretia
Possibly ok, but a risky time to plant aubretia
Probably not a good time to plant aubretia

The earliest that you can plant aubretia in Zone 3b 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 aubretia and expect a good harvest is probably August. If you wait any later than that and your aubretia may not have a chance to grow to maturity. Starting your aubretia indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

The average date of last frost is May 15 in Zone 3b. In the coldest months of winter you can expect an average low temperature of -35°F.

Remember that USDA zone info for Zone 3b is not always accurate and the actual date of last frost can change quite a bit from year to year. Since half of the time in Zone 3b you get a frost after May 15 be ready to protect your aubretia in the event of a late frost.

USDA Zone Info for Zone 3b

Here is the info for USDA Zone 3b.

Average Date of Last Frost (spring)May 15
Average Date of First Frost (fall)September 15
Lowest Expected Low-35°F
Highest Expected Low-30°F

This means that on a really cold year, the coldest it will get is -35°F. On most years you should be prepared to experience lows near -30°F.

Plants to Grow in Zone 3b

You may be interested in your other planting guides for Zone 3b.