The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You can estimate when to plant chocolate daisy in Boulder by referring to the USDA zone info.

Planting Calendar for Chocolate Daisy

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

You can plant chocolate daisy just a tiny bit earlier in the year because they are barely cold tolerant.

The earliest that you can plant chocolate daisy in Boulder 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 chocolate daisy and expect a good harvest is probably August. Any later than that and your chocolate daisy may not have a chance to fully mature. Starting your chocolate daisy indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average all chance of frost has passed is on April 15 in Boulder. It might get as low as -15°F during the coldest months of winter.

Always keep in mind that USDA zone info for Boulder may not be accurate from year to year and the actual date of last frost changes from year to year. Half of the time in Boulder you get surprised by a frost after April 15 so make sure that you are ready to protect your chocolate daisy in the event of a surprise late frost.

USDA Zone Info for Boulder

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 Boulder

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