The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You should be able to determine when it's the best time to plant pennisetum by reviewing the USDA zone info for Amarillo.

Planting Calendar for Pennisetum

Frost tolerance for pennisetum:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Pennisetum can survive in mild cold which tells us that you can plant them just a tiny bit earlier in the year than plants that are more sensitive to the cold.

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

The last month that you can plant pennisetum and expect a good harvest is probably August. Any later than that and your pennisetum may not have a chance to fully mature. Starting your pennisetum indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Amarillo. You should expect an average low temperature of 0°F in the coldest months of winter.

Since the USDA zone info for Amarillo is an average the actual date of last frost changes from year to year. Since half of the time in Amarillo it frosts late in the year after April 15 be ready to cover your pennisetum if you have a late frost.

USDA Zone Info for Amarillo

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	0°F
Highest Expected Low	5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in Amarillo

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