Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The first opportunity to plant pincushion flower in Markham should be estimated by reviewing the USDA zone info.

Planting Calendar for Pincushion Flower

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

Pincushion Flower do well in a little bit of cold which tells us that you can plant them a bit earlier in the year than other frost tender plants.

The earliest that you can plant pincushion flower 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 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 couple of weeks earlier by starting your pincushion flower indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in Markham. You can expect an average low temperature of -15°F in the coldest months of winter.

Since the USDA zone info for Markham is an average the actual date of last frost can change quite a bit from year to year. Half of the time in Markham you get surprised by a frost after April 15 so just be sure to be ready to cover your pincushion flower if you have one of those late frosts.

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.