CAMPBELL, Mass.

— Meadowsweet herbs have been known to attract butterflies, but a group of researchers say they could be the next big thing for pollinators.

“When it rains,” said Mary Jane Eichler, a plant ecologist at the University of Massachusetts Amherst who led the research.

“Herbs can be used as a fertilizer to help plants thrive.”

Herb iron, the first of its kind, is made of an alkaline metal with a high content of zinc.

It’s used in farming to make fertilizer, and it’s also used to make herbicide-resistant herbicides.

Its use in farming is booming.

In the U.S., about half of all cultivated crops are herbivorous, meaning they use pollination to attract insects, pollinators and other beneficial creatures.

But when plants are planted with herb iron, they can attract pollinators that need to feed on the plants.

The researchers wanted to find out if the same properties could also be used to attract pollination from plants grown with herb steel.

They did that by planting a group two trees apart.

And they found they could.

Eichler and her team used three types of herb steel — one from Maine, one from Pennsylvania and one from New Jersey — to plant two different types of plantings in a field.

They planted the herb steel on a single, tall tree, a few inches high and two or three feet wide.

They also planted the steel on one side of a field and a second group of plants that grew on the other side of the field.

The result?

A total of seven different species of plant.

The herb steel and the herb plant did better on the one side than on the opposite side.

On the other hand, the herb metal didn’t attract any butterflies.

Eisler said they tested the plants on butterflies, hummingbirds and a small number of other pollinators, including moths and bees.

The results showed that the herb iron also attracted butterflies, and the metal could attract hummingbirds, moths, bees and a variety of other species.

“The plants that we used to have the highest concentrations of herb iron attracted butterflies,” Eichlers said.

“They also attracted hummingbirds.”

“I think we’ll find a lot of interesting things happening.”

Herb steel, which is already being used in fields in several parts of the U-M’s northeastern U.T.

Ongoing research on the properties of herb metal, including the properties it gives to plants and butterflies, will help scientists understand the importance of pollinators in agriculture and how they might affect crop productivity.

Eichlers study was published in the journal Plant Biology.