When can I plant Schizanthus in Zone 9b

Before planting it is a good idea to find our USDA Zone info to figure out our garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for our area.

The first opportunity to plant schizanthus in Zone 9b can be determined by reviewing the USDA zone info.


Planting Calendar for Schizanthus

Frost tolerance for schizanthus: Not tolerant of frost.
When you should plant them: After the last frost has passed.

You can not plant schizanthus until after the last frost has passed because they are not cold tolerant.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant schizanthus
Possibly ok, but a risky time to plant schizanthus
Probably not a good time to plant schizanthus

The earliest that you can plant schizanthus in Zone 9b 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 schizanthus and expect a good harvest is probably September. Any later than that and your schizanthus may not have a chance to really do well. If you are starting your schizanthus 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 February 15 in Zone 9b. We should expect an average low temperature of 25°F in the coldest months of winter.

Since the USDA zone info for Zone 9b may not be accurate from year to year our actual date of last frost will vary from year to year. Half of the time in Zone 9b it frosts late in the year after February 15 so make sure that you are prepared to cover your schizanthus if we have a late frost.

USDA Zone Info for Zone 9b

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)February 15
Average Date of First Frost (fall)December 15
Lowest Expected Low25°F
Highest Expected Low30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Zone 9b

You may be interested in our other planting guides for Zone 9b.