The Poison Ivy - Poison Oak Blog

bus stop poison ivy

A viewer sent in this memorable photo of a tree covered with poison ivy – at a bus stop. 

July 22, 2018 - 12:34pm
sweet fern

We got a lovely email from a viewer about sweet fern and his father:

July 19, 2018 - 4:40pm
mowing poison ivy

Mowing poison ivy is a mixed bag:

It is good to mow it since that will keep it in check. Without leaves it can't survive, so it won't invade your lawn.

July 16, 2018 - 3:58pm
strange poison ivy growth

Every so often you may see this sort of strange growth on a poison ivy vine. We sent the photo off to poison ivy scientist John Jelesko and he reports as follows:

July 10, 2018 - 5:05pm
poison ivy on guard rail

Poison ivy loves roadsides. It loves the sunlight. Birds drop the seeds there, often while sitting on power lines overhead.

We often see poison ivy growing over guard rails, but this example was particularly spectactular.

TAGS: guard rails
July 2, 2018 - 10:03am
poison ivy gate

I hope the folks that need to close this gate every evening realize that it is sitting right inside a nice garland of poison ivy.

TAGS: gate
June 26, 2018 - 10:05am
poison ivy murder

I once got one of the strangest phone calls of my life, and it was because of this website.

A fellow explained that he had a question about poison ivy and my answer might determine if he spent the rest of his life in prison.

TAGS: murder
June 25, 2018 - 2:20pm
monster poison ivy leaf

This photo was sent by a viewer. And this might be the largest poison ivy leaf we have ever seen! Could be 6 x 8 inches, which is enormous.

Because of vastly increased CO2 in the atmosphere, poison ivy is growing larger (and more potent). 

TAGS: large
June 18, 2018 - 1:44pm
poison ivy leaves alternating

A viewer sent in this photo of a poison ivy (or possibly poison oak) vine.

What is striking about this image is how the leaves of three come off the main stem clearly alternating left and right. You rarely get such a clear view of how this works since the leaves usually hide the stems.

TAGS: alternating
June 10, 2018 - 7:46pm
poison ivy on a fence

This photo was sent in by a viewer who wanted to know for sure if this monster was poison ivy.

The answer is... YES IT IS POISON IVY!!!

TAGS: fence
May 30, 2018 - 8:02pm