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.

The USDA zone info for Markham can be looked at to determine when 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 little bit earlier in the year than more sensitive plants.

The earliest that you can plant lenten rose in Markham 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. If you wait any later than that and your lenten rose may not have a chance to fully mature. You can get started a few weeks earlier by starting your lenten rose indoors.

Last Frost Date

The average date of last frost is April 15 in Markham. In the coldest months of winter you should expect an average low temperature of -15°F.

Just be sure to remember that USDA zone info for Markham is not always accurate and the actual date of last frost is different every year. Half of the time in Markham you get surprised by a frost after April 15 so just be sure to be ready to protect your lenten rose if you have a late frost.

USDA Zone Info for Markham

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 Markham

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