When to Plant Carnation in Cornelius, OR

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

In Cornelius you can figure out when you can plant carnation by reviewing the USDA zone info.


Planting Calendar for Carnation

Frost tolerance for carnation: Very tolerant of frost.
When to plant: Up to 7 weeks before last frost.

You can plant carnation much earlier in the year because they are one of those plants that can tolerate quite a bit of cold weather.

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

The earliest that you can plant carnation in Cornelius is February. However, you really should wait until March if you don't want to take any chances.

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

Last Frost Date

The average date of last frost is March 15 in Cornelius. You can expect an average low temperature of 15°F in the coldest months of winter.

Since the USDA zone info for Cornelius may not be accurate from year to year the actual date of last frost will vary from year to year. Since half of the time in Cornelius last frost occurs after March 15 be ready to protect your carnation in the event of one of those late frosts.

USDA Zone Info for Cornelius

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 Low15°F
Highest Expected Low20°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 Cornelius

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