When to Plant Trachelium in Zone 9b

The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The first chance to plant trachelium in Zone 9b should be determined by checking out the USDA zone info.

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Planting Calendar for Trachelium

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

You can not plant trachelium until after the last frost when the weather gets warmer because they require warm weather.

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

The earliest that you can plant trachelium 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 trachelium and expect a good harvest is probably September. If you wait any later than that and your trachelium may not have a chance to grow to maturity. If you are starting your trachelium indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

In Zone 9b the average date of last frost happens on February 15. You should expect an average low temperature of 25°F in the coldest months of winter.

Since the USDA zone info for Zone 9b is just an average the actual date of last frost is different every year. Half of the time in Zone 9b you get a frost after February 15 so make sure that you are prepared to protect your trachelium in the event of one of those late frosts.

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 your other planting guides for Zone 9b.