Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Seal Beach you can figure out when it's possible to plant gladiolus by looking at 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 do well in very little cold which tells us that you can plant them slightly earlier in the year than other frost tender plants.

The earliest that you can plant gladiolus in Seal Beach 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. Any later than that and your gladiolus may not have a chance to really do well. Starting your gladiolus indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is January 31 in Seal Beach. It might get as low as 35°F during the coldest months of winter.

Since the USDA zone info for Seal Beach is an average the actual date of last frost changes from year to year. Since half of the time in Seal Beach last frost occurs after January 31 be ready to protect your gladiolus in the event of a surprise late frost.

USDA Zone Info for Seal Beach

Here is the info for USDA Zone 10b.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	35°F
Highest Expected Low	40°F

This means that on a really cold year, the coldest it will get is 35°F. On most years you should be prepared to experience lows near 40°F.

Plants to Grow in Seal Beach

You may be interested in your other planting guides for Seal Beach.