Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The first opportunity to plant strawflowers in Richmond Hill should be estimated by reviewing the USDA zone info.

Planting Calendar for Strawflowers

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

Since strawflowers are barely cold tolerant you can plant them just a tiny bit earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant strawflowers in Richmond Hill 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 strawflowers and expect a good harvest is probably August. If you wait any later than that and your strawflowers may not have a chance to really do well. Starting your strawflowers indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is March 15 in Richmond Hill. In the coldest months of winter you should expect an average low temperature of 15°F.

Since the USDA zone info for Richmond Hill is just an average the actual date of last frost can change quite a bit from year to year. Since half of the time in Richmond Hill you get surprised by a frost after March 15 be ready to cover your strawflowers in the event of one of those late frosts.

USDA Zone Info for Richmond Hill

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°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 20°F.

Plants to Grow in Richmond Hill

You may be interested in your other planting guides for Richmond Hill.