frostdate name logo in white
frostdate name logo in white

When to Plant Tropical Hibiscus in Hillsdale, MI

One of the best tools that you have as gardeners to help us determine 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.

A way of estimating when it's the best time to plant tropical hibiscus is to look at the USDA zone info for Hillsdale.


Planting Calendar for Tropical Hibiscus

Frost tolerance for tropical hibiscus: Not tolerant of frost.
When to plant: After all chance of frost has passed.

It's a bad idea to plant tropical hibiscus until after the last frost when the weather gets warmer because they require warm weather.

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

The earliest that you can plant tropical hibiscus in Hillsdale 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 tropical hibiscus and expect a good harvest is probably August. You probably don't want to wait any later than that or else your tropical hibiscus may not have a chance to really do well. Starting your tropical hibiscus indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average the last frost is on April 15 in Hillsdale. You should expect an average low temperature of -15°F in the coldest months of winter.

Always keep in mind that the actual date of last frost is not always accurate because it is based on the USDA zone info for Hillsdale and it will vary from year to year. Half of the time in Hillsdale last frost occurs after April 15 so just be sure to be ready to cover your tropical hibiscus if you have a surprise late frost.

USDA Zone Info for Hillsdale

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 Hillsdale

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