One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

It's possible to figure out when it's the best time to plant pyrethrum by referring to the USDA zone info for Rushville.

Planting Calendar for Pyrethrum

Frost tolerance for pyrethrum:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

You can plant pyrethrum a bit earlier in the year because they do well in moderate cold.

The earliest that you can plant pyrethrum in Rushville is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant pyrethrum and expect a good harvest is probably September. If you wait any later than that and your pyrethrum may not have a chance to grow to maturity. If you are starting your pyrethrum indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Rushville. You should expect an average low temperature of -10°F in the coldest months of winter.

Since the USDA zone info for Rushville may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Since half of the time in Rushville you get surprised by a frost after April 15 be ready to cover your pyrethrum if you have a surprise late frost.

USDA Zone Info for Rushville

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Rushville

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