Before planting it is a good idea to find your USDA Zone info to figure out 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 Katy should be reffered to in order to determine when to plant vinca vine.

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 are moderately cold tolerant you can plant them just a bit earlier in the year than other frost tender plants.

The earliest that you can plant vinca vine in Katy is January. However, you really should wait until February 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 October. If you wait any later than that and your vinca vine may not have a chance to grow to maturity. Starting your vinca vine indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

The average date of last frost is February 15 in Katy. In the coldest months of winter you can expect an average low temperature of 20°F.

It's important to remember that the actual date of last frost may not be accurate from year to year because it is based on the USDA zone info for Katy and it can change quite a bit from year to year. Since half of the time in Katy there is a last frost after February 15 be ready to protect your vinca vine if you have a surprise late frost.

USDA Zone Info for Katy

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Katy

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