When to Plant Gloriosa Lily in Osceola, IA

One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

It's a good idea to determine when to plant gloriosa lily by reviewing the USDA zone info for Osceola.


Planting Calendar for Gloriosa Lily

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

Gloriosa Lily are not cold tolerant which tells us that you need to wait until it warms up after the last frost when the weather gets warmer before you can plant them.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant gloriosa lily
Possibly ok, but a risky time to plant gloriosa lily
Probably not a good time to plant gloriosa lily

The earliest that you can plant gloriosa lily in Osceola is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant gloriosa lily and expect a good harvest is probably August. Any later than that and your gloriosa lily may not have a chance to grow to maturity. If you are starting your gloriosa lily indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

On average the last frost has passed is on April 15 in Osceola. In the coldest months of winter you can expect an average low temperature of -15°F.

It's important to remember that USDA zone info for Osceola is not always accurate and the actual date of last frost is different every year. Half of the time in Osceola there is a last frost after April 15 so make sure that you are ready to protect your gloriosa lily in the event of a late frost.

USDA Zone Info for Osceola

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 Osceola

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