One of the first steps you take when you are estimating your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The USDA zone info for Urbandale should be read to determine when it's possible to plant plectranthus.

Planting Calendar for Plectranthus

Frost tolerance for plectranthus:	Not tolerant of frost.
When to plant:	After the last frost.

It's probably a bad idea to plant plectranthus until after the last frost when the weather gets warmer because they are not cold tolerant.

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

Last Frost Date

In Urbandale the average date of last frost happens on April 15. You should expect an average low temperature of -20°F in the coldest months of winter.

Keep in mind that USDA zone info for Urbandale is an average and the actual date of last frost changes from year to year. Since half of the time in Urbandale last frost occurs after April 15 be ready to protect your plectranthus in the event of a late frost.

USDA Zone Info for Urbandale

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 Urbandale

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