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When to Plant Swan River Daisy in Knoxville, IA

Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The first chance to plant swan river daisy in Knoxville can be figured out by reviewing the USDA zone info.


Planting Calendar for Swan River Daisy

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

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

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant swan river daisy
Possibly ok, but a risky time to plant swan river daisy
Probably not a good time to plant swan river daisy

The earliest that you can plant swan river daisy in Knoxville 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 swan river daisy and expect a good harvest is probably August. You probably don't want to wait any later than that or else your swan river daisy may not have a chance to really do well. You can get started a couple of weeks earlier by starting your swan river daisy indoors.

Last Frost Date

The average date of last frost is April 15 in Knoxville. You should expect an average low temperature of -15°F in the coldest months of winter.

It's important to remember that the actual date of last frost is not always accurate because it is based on the USDA zone info for Knoxville and it can change quite a bit from year to year. Half of the time in Knoxville you get surprised by a frost after April 15 so be sure to be ready to protect your swan river daisy in the event of one of those late frosts.

USDA Zone Info for Knoxville

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 Knoxville

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