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.

By using the USDA zone info for Katy you will be able to figure out when to plant scaevola.

Planting Calendar for Scaevola

Frost tolerance for scaevola:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

Since scaevola do not do well in cold weather it is important to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant scaevola in Katy 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 scaevola and expect a good harvest is probably September. You probably don't want to wait any later than that or else your scaevola may not have a chance to really do well. You can get started a little bit earlier by starting your scaevola indoors.

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.

Keep in mind that the actual date of last frost is an average because it is based on the USDA zone info for Katy and it is different every year. Half of the time in Katy it frosts late in the year after February 15 so make sure that you are ready to protect your scaevola in the event of 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.