When to Plant Lantana in Harlan, IA

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.

By using the USDA zone info for Harlan it's a good idea to determine when it's a good idea to plant lantana.


Planting Calendar for Lantana

Frost tolerance for lantana: Not tolerant of frost.
When to plant: After the last frost has passed.

Since lantana are not cold tolerant it's necessary to wait until after the last frost when the weather gets warmer before you can plant them.

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

The earliest that you can plant lantana in Harlan 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 lantana and expect a good harvest is probably August. If you wait any later than that and your lantana may not have a chance to really do well. If you are starting your lantana indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

On average all chance of frost has passed is on April 15 in Harlan. It might get as low as -20°F during the coldest months of winter.

Remember that the actual date of last frost is just an average because it is based on the USDA zone info for Harlan and it changes from year to year. Since half of the time in Harlan it frosts late in the year after April 15 be ready to protect your lantana if you have a late frost.

USDA Zone Info for Harlan

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low-20°F
Highest Expected Low-15°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 -15°F.

Plants to Grow in Harlan

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