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 USDA zone info for Rathdrum can be looked at to determine when it's the best time to 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 are moderately cold tolerant you can plant them a little earlier in the year than more sensitive plants.

The earliest that you can plant pincushion flower in Rathdrum 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 pincushion flower and expect a good harvest is probably September. If you wait any later than that and your pincushion flower may not have a chance to fully mature. You can get started a little bit earlier by starting your pincushion flower indoors.

Last Frost Date

In Rathdrum the average date of last frost happens on April 15. You can expect an average low temperature of -5°F in the coldest months of winter.

Just be sure to remember that the actual date of last frost is an average because it is based on the USDA zone info for Rathdrum and it can change quite a bit from year to year. Since half of the time in Rathdrum there is a last frost after April 15 be ready to cover your pincushion flower if you have a late frost.

USDA Zone Info for Rathdrum

Here is the info for USDA Zone 6b.

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

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

Plants to Grow in Rathdrum

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