One of the best tools that you have as gardeners to help us determine 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.

By looking at the USDA zone info for Sparta you will be able to estimate when you can plant pincushion flower.

Planting Calendar for Pincushion Flower

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

Since pincushion flower do well in moderate cold you can plant them a little bit earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant pincushion flower in Sparta 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 pincushion flower and expect a good harvest is probably August. You probably don't want to wait any later than that or else your pincushion flower may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your pincushion flower indoors.

Last Frost Date

The average date of last frost is May 15 in Sparta. In the coldest months of winter you can expect an average low temperature of -25°F.

Since the USDA zone info for Sparta may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Half of the time in Sparta there is a last frost after May 15 so make sure that you are ready to protect your pincushion flower in the event of a late frost.

USDA Zone Info for Sparta

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°F

This means that on a really cold year, the coldest it will get is -25°F. On most years you should be prepared to experience lows near -20°F.

Plants to Grow in Sparta

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