One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A way of making a decision about when it's the best time to plant calibrachoa is to check out the USDA zone info for Vernon.

Planting Calendar for Calibrachoa

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

Calibrachoa do ok in moderate cold which means that you can plant them slightly earlier than other frost tender plants.

The earliest that you can plant calibrachoa in Vernon 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 calibrachoa and expect a good harvest is probably August. If you wait any later than that and your calibrachoa may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your calibrachoa indoors.

Last Frost Date

In Vernon the average date of last frost happens on April 15. It might get as low as 5°F during the coldest months of winter.

Just be sure to remember that the actual date of last frost is just an average because it is based on the USDA zone info for Vernon and it can change quite a bit from year to year. Half of the time in Vernon there is a last frost after April 15 so be sure to be ready to cover your calibrachoa in the event of a surprise late frost.

USDA Zone Info for Vernon

Here is the info for USDA Zone 7b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	5°F
Highest Expected Low	10°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 10°F.

Plants to Grow in Vernon

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