Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The USDA zone info for Thornton can be read to figure out when it's a good idea to plant livingstone daisy.

Planting Calendar for Livingstone Daisy

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

Since livingstone daisy are not cold tolerant it's necessary to wait until after the last frost has passed before you can plant them.

The earliest that you can plant livingstone daisy in Thornton 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 livingstone daisy and expect a good harvest is probably August. Any later than that and your livingstone daisy may not have a chance to fully mature. You can get started a few weeks earlier by starting your livingstone daisy indoors.

Last Frost Date

The average date of last frost is April 15 in Thornton. It might get as low as -15°F during the coldest months of winter.

Keep in mind that the actual date of last frost is not always accurate because it is based on the USDA zone info for Thornton and it can change quite a bit from year to year. Half of the time in Thornton it frosts late in the year after April 15 so make sure that you are prepared to cover your livingstone daisy in the event of one of those late frosts.

USDA Zone Info for Thornton

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 Thornton

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