One of the first steps you take when you are figuring out your gardening schedule is find your 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.

The USDA zone info for Bellaire can be reviewed to estimate when it's possible to plant calla lily.

Planting Calendar for Calla Lily

Frost tolerance for calla lily:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

It's probably not a good idea to plant calla lily until after the last frost because they require warm weather.

The earliest that you can plant calla lily in Bellaire 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 calla lily and expect a good harvest is probably September. You probably don't want to wait any later than that or else your calla lily may not have a chance to grow to maturity. Starting your calla lily indoors is a great way to get them started a little bit earlier.

Last Frost Date

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

Since the USDA zone info for Bellaire is an average the actual date of last frost will vary from year to year. Since half of the time in Bellaire it frosts late in the year after February 15 be ready to cover your calla lily in the event of one of those late frosts.

USDA Zone Info for Bellaire

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 Bellaire

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