When to Plant Bidens in Winston, OR

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 USDA zone info for Winston can be looked at to figure out when it's possible to plant bidens.


Planting Calendar for Bidens

Frost tolerance for bidens: Not tolerant of frost.
When to plant: After all chance of frost has passed.

Since bidens require warm weather it is necessary to wait until after the last frost has passed before you can plant them.

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

The earliest that you can plant bidens in Winston 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 bidens and expect a good harvest is probably August. You probably don't want to wait any later than that or else your bidens may not have a chance to really do well. You can get started a few weeks earlier by starting your bidens indoors.

Last Frost Date

On average all chance of frost has passed is on March 15 in Winston. It might get as low as 15°F during the coldest months of winter.

Remember that USDA zone info for Winston may not be accurate from year to year and the actual date of last frost changes from year to year. Half of the time in Winston you get a frost after March 15 so make sure that you are prepared to protect your bidens in the event of a surprise late frost.

USDA Zone Info for Winston

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 Winston

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