One of the first steps you take when you are getting a good idea 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 Richmond Hill you can estimate when it's a good idea to plant brachycome by looking at the USDA zone info.

Planting Calendar for Brachycome

Frost tolerance for brachycome:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

It's probably not a good idea to plant brachycome until after the last frost when the weather gets warmer because they do not do well in cold weather.

The earliest that you can plant brachycome in Richmond Hill is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant brachycome and expect a good harvest is probably August. If you wait any later than that and your brachycome may not have a chance to really do well. If you are starting your brachycome indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

The average date of last frost is March 15 in Richmond Hill. It might get as low as 15°F during the coldest months of winter.

Since the USDA zone info for Richmond Hill may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Half of the time in Richmond Hill there is a last frost after March 15 so make sure that you are prepared to protect your brachycome in the event of a late frost.

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.