One of the first steps you take when you are figuring out your gardening schedule is find your 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 earliest that you can plant brachycome in Richardson should be determined by reviewing the USDA zone info.

Planting Calendar for Brachycome

Frost tolerance for brachycome:	Not tolerant of frost.
When to plant:	After the last frost.

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

The earliest that you can plant brachycome in Richardson 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. You probably don't want to wait any later than that or else 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 little bit earlier.

Last Frost Date

In Richardson the average date of last frost happens on March 15. You should expect an average low temperature of 10°F in the coldest months of winter.

Since the USDA zone info for Richardson is just an average the actual date of last frost can change quite a bit from year to year. Half of the time in Richardson you get a 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 Richardson

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°F

This means that on a really cold year, the coldest it will get is 10°F. On most years you should be prepared to experience lows near 15°F.

Plants to Grow in Richardson

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