The Poison Ivy - Poison Oak Blog

poison ivy conduit

This is an outdoor electric conduit. Growing on it is mostly Virginia creeper, but also a teeny bit of poison ivy.

These two plants often grow together. The thing that ususally makes them easy to tell apart is that Virginia creeper has 5 leaves in a group, whereas poison ivy has 3.

TAGS: conduit
September 14, 2018 - 5:43pm
poison sumac

Poison sumac is a funny topic. Many of the hundreds of thousands of monthly visitors to this site are searching for poison sumac info in Google.

And yet, in 15 years of running this site, I have gotten very few actual photos of poison sumac: it is just not that common.

TAGS: poison sumac
August 24, 2018 - 2:55pm
poison ivy do not enter sign

Ironic, ain't it? This lovely little vine growing up a tree next to a Do No Enter sign...

Yes, it IS poison ivy, ready to ruin the rest of your summer if you brush it, grab it, or use it for a decoration, as has been done.

TAGS: sign
August 22, 2018 - 10:58am
poison ivy roadsgn

Gee, what could that be, creeping up the post holding up that roadsign?

Sure enough, none other than good old poison ivy.

TAGS: street sign
August 13, 2018 - 5:17pm
front yard poison ivy

I was driving along and noticed this monster growth of poison ivy in someone's yard, along with various children's toys. So I knew that kids were at risk of the kind of rash that ruins the whole summer.

August 10, 2018 - 4:56pm
poison ivy treetop

Poison ivy climbs a dead tree, looking for light. When it reaches the top, it spreads out in all directions, a sort of poison ivy explosion, looking for more light and for the next thing to climb upon.

August 3, 2018 - 10:19am
poison ivy in a tree crotch

Here is a new one: a poison ivy vine growing out of the crotch of a maple tree, about 5 feet from the ground.

The roots don't wrap around the tree and touch the ground: they either start and stop right in the crotch, or even stranger, grow INSIDE the tree trunk.

TAGS: tree crotch
July 29, 2018 - 3:04pm
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