One of the first steps you take when you are figuring out your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The USDA zone info for Three Rivers can be reffered to in order to figure out when it's a good idea 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.

Since lenten rose are moderately cold tolerant you can plant them a bit earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant lenten rose in Three Rivers 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. Any later than that and your lenten rose may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your lenten rose indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Three Rivers. In the coldest months of winter you should expect an average low temperature of -15°F.

Always keep in mind that USDA zone info for Three Rivers is not always accurate and the actual date of last frost is different every year. Half of the time in Three Rivers you get surprised by a frost 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 Three Rivers

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 Three Rivers

You may be interested in your other planting guides for Three Rivers.