When to Plant Torenia in Mount Vernon, WA

One of the best tools that you have as gardeners to help us estimate your gardening schedule is the 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.

You can estimate when to plant torenia in Mount Vernon by referring to the USDA zone info.


Planting Calendar for Torenia

Frost tolerance for torenia: Not tolerant of frost.
When to plant: After the last frost when the weather gets warmer.

You can not plant torenia until after all chance of frost has passed because they require warm weather.

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

The earliest that you can plant torenia in Mount Vernon 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 torenia and expect a good harvest is probably August. You probably don't want to wait any later than that or else your torenia may not have a chance to really do well. Starting your torenia indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average all chance of frost has passed is on March 15 in Mount Vernon. You can expect an average low temperature of 10°F in the coldest months of winter.

Since the USDA zone info for Mount Vernon is an average the actual date of last frost is different every year. Since half of the time in Mount Vernon you get surprised by a frost after March 15 be ready to cover your torenia if you have one of those late frosts.

USDA Zone Info for Mount Vernon

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 Low10°F
Highest Expected Low15°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 Mount Vernon

You may be interested in your other planting guides for Mount Vernon.