One of the best tools that you have as gardeners to help us estimate 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 best time to plant chinese chives in Toronto can be estimated by using the USDA zone info.

Planting Calendar for Chinese chives

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

Chinese chives tend to make it in mild cold which tells us that you can plant them a little earlier in the year than other frost tender plants.

The earliest that you can plant chinese chives in Toronto 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 chinese chives and expect a good harvest is probably September. Any later than that and your chinese chives may not have a chance to grow to maturity. You can get started a little bit earlier by starting your chinese chives indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in Toronto. You should expect an average low temperature of -5°F in the coldest months of winter.

Always keep in mind that USDA zone info for Toronto may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Half of the time in Toronto you get surprised by a frost after April 15 so be sure to be ready to cover your chinese chives in the event of a surprise late frost.

USDA Zone Info for Toronto

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Toronto

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