The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You can figure out when to plant gladiolus in Alamo by checking out the USDA zone info.

Planting Calendar for Gladiolus

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

Gladiolus tend to make it in a tiny bit of cold which tells us that you can plant them just a tiny bit earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant gladiolus in Alamo 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 gladiolus and expect a good harvest is probably September. If you wait any later than that and your gladiolus may not have a chance to really do well. You can get started a few weeks earlier by starting your gladiolus indoors.

Last Frost Date

On average the last frost is on February 15 in Alamo. In the coldest months of winter you can expect an average low temperature of 25°F.

It's important to remember that USDA zone info for Alamo may not be accurate from year to year and the actual date of last frost is different every year. Since half of the time in Alamo there is a last frost after February 15 be ready to cover your gladiolus in the event of a surprise late frost.

USDA Zone Info for Alamo

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Alamo

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