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

By looking at the USDA zone info for Orland Park it's a good idea to determine when it's possible to plant gladiolus.

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 are one of those plants that can tolerate a tiny bit of cold weather which tells us that you can get them planted just a bit earlier than plants that are more sensitive to the cold.

The earliest that you can plant gladiolus in Orland Park 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 gladiolus and expect a good harvest is probably August. If you wait any later than that and your gladiolus may not have a chance to grow to maturity. Starting your gladiolus indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Orland Park. In the coldest months of winter you can expect an average low temperature of -15°F.

Since the USDA zone info for Orland Park may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Half of the time in Orland Park it frosts late in the year after April 15 so just be sure to be ready to cover your gladiolus in the event of a late frost.

USDA Zone Info for Orland Park

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°F

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Orland Park

You may be interested in your other planting guides for Orland Park.