The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. 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 Waukee can be used to determine when to plant scaevola.

Planting Calendar for Scaevola

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

Scaevola require warm weather which tells us that you must wait until it warms up after the last frost has passed before you can plant them.

The earliest that you can plant scaevola in Waukee 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 scaevola and expect a good harvest is probably August. Any later than that and your scaevola may not have a chance to grow to maturity. If you are starting your scaevola 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 when the weather gets warmer is on April 15 in Waukee. It might get as low as -20°F during 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 Waukee and it is different every year. Half of the time in Waukee you get surprised by a frost after April 15 so always be ready to cover your scaevola if you have one of those late frosts.

USDA Zone Info for Waukee

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 Waukee

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