One of the best tools that you have as gardeners to help us estimate 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.

In Plano you can figure out when it's a good idea to plant shallots by checking out the USDA zone info.

Planting Calendar for Shallots

Frost tolerance for shallots:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Since shallots are barely cold tolerant you can plant them slightly earlier in the year than other frost tender plants.

The earliest that you can plant shallots in Plano 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 shallots and expect a good harvest is probably August. If you wait any later than that and your shallots may not have a chance to really do well. If you are starting your shallots indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Plano. In the coldest months of winter you should expect an average low temperature of -15°F.

Since the USDA zone info for Plano may not be accurate from year to year the actual date of last frost is different every year. Half of the time in Plano you get surprised by a frost after April 15 so always be ready to protect your shallots if you have a late frost.

USDA Zone Info for Plano

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 Plano

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