One of the first steps you take when you are making a decision about 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.

In Markham you can estimate when it's the best time to plant lemon grass by referring to the USDA zone info.

Planting Calendar for Lemon grass

Frost tolerance for lemon grass:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Lemon grass tend to make it in mild cold which tells us that you can plant them just a tiny bit earlier in the year than other frost tender plants.

The earliest that you can plant lemon grass in Markham is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant lemon grass and expect a good harvest is probably August. Any later than that and your lemon grass may not have a chance to really do well. You can get started a couple of weeks earlier by starting your lemon grass indoors.

Last Frost Date

The average date of last frost is April 15 in Markham. It might get as low as -15°F during the coldest months of winter.

It's important to remember that USDA zone info for Markham may not be accurate from year to year and the actual date of last frost will vary from year to year. Since half of the time in Markham it frosts late in the year after April 15 be ready to cover your lemon grass if you have a surprise 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.