The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By referring to the USDA zone info for Oswego you should be able to figure out when it's possible to plant lenten rose.

Planting Calendar for Lenten Rose

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

Lenten Rose do well in a little bit of cold which tells us that you can plant them a little earlier in the year than other plants that might not handle the cold.

The earliest that you can plant lenten rose in Oswego 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 lenten rose and expect a good harvest is probably September. You probably don't want to wait any later than that or else your lenten rose may not have a chance to really do well. You can get started a little bit earlier by starting your lenten rose indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in Oswego. It might get as low as -15°F during the coldest months of winter.

Remember that USDA zone info for Oswego is not always accurate and the actual date of last frost changes from year to year. Half of the time in Oswego it frosts late in the year after April 15 so just be sure to be ready to cover your lenten rose if you have a surprise late frost.

USDA Zone Info for Oswego

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 Oswego

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