One of the first steps you take when you are making a decision about 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.

One way of making a decision about when it's the best time to plant vinca vine is to check out the USDA zone info for Berthoud.

Planting Calendar for Vinca Vine

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

Since vinca vine do well in moderate cold you can plant them a little earlier in the year than more sensitive plants.

The earliest that you can plant vinca vine in Berthoud 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 vinca vine and expect a good harvest is probably September. If you wait any later than that and your vinca vine may not have a chance to grow to maturity. You can get started a little bit earlier by starting your vinca vine indoors.

Last Frost Date

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

It's important to remember that USDA zone info for Berthoud is an average and the actual date of last frost can change quite a bit from year to year. Half of the time in Berthoud last frost occurs after April 15 so always be ready to protect your vinca vine in the event of a surprise late frost.

USDA Zone Info for Berthoud

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 Berthoud

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