One of the first steps you take when you are getting a good idea your gardening schedule is find your 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 Dumas can be looked at to figure out when to plant radicchio.

Planting Calendar for Radicchio

Frost tolerance for radicchio:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Radicchio do ok in some cold which tells us that you can plant them a little earlier in the year than more sensitive plants.

The earliest that you can plant radicchio in Dumas 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 radicchio and expect a good harvest is probably September. Any later than that and your radicchio may not have a chance to fully mature. If you are starting your radicchio indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Dumas. In the coldest months of winter you can expect an average low temperature of -5°F.

Remember that USDA zone info for Dumas is an average and the actual date of last frost can change quite a bit from year to year. Half of the time in Dumas you get surprised by a frost after April 15 so just be sure to be ready to protect your radicchio if you have one of those late frosts.

USDA Zone Info for Dumas

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 Dumas

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