High tech air purification with houseplants

In the 1980s, NASA spent millions of dollars on how to deal with unhealthy indoor environments.

They were interested in the big challenge of purifying air on space stations and long space flights.

Here’s what they came up with…

Houseplants.

The simplest plant to take care of:

Sansevieria laurentii, also known as “mother-in-law’s tongue” and “snake plant.”

The original NASA paper is here:

https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19930073077.pdf

The specs

Still more

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Foraging & Feasting with Dina Falconi


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The ideal introduction to plants, herbs and “weeds” would be to have a grandmother (or grandfather) take us by the hand through the fields and woods from an early age.

In these “modern” times, few of us have that experience. Our guest on this installment of PlantWisdom.org, Dina Falcone, certainly didn’t.

Dina grew up in New York City’s East Village in the 1970s, an urban … Read more

Creating food meadows


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There’s farming which can include big corporate farms, small family farms, and gardens.

Then there’s foraging which is roaming around looking for “free” food to pick and eat.

Is there something in between?

Yes there is.

In this wide ranging conversation with Tama Matsuoka Wong we talk about a middle way in which wild edible plants are encouraged to grow.

This is a “new” idea to … Read more

All the plants in New York’s Central Park – Cataloged

01Daniel Atha put on his waders and ventured slowly into the Pool, near West 103rd Street, one of several bodies of water in Central Park. He was after a broad-leaved yellow pond lily and an iris of indeterminate species.

He carefully collected the two specimens, along with a baseball bearing Derek Jeter’s signature. After he studied the iris for a moment, his face brightened. He thought the flower might not … Read more

Herb walk with Rosita Arvigo in Chicago

224Site of Herb Walk in Chicago on Milwaukee and Kedzie Avenues in Logan Square

219Amaranth — Amaranthus retroflexus — Ancient food of the Americas; very high mineral and protein content. Excellent for anemia

226Sheep  Sorrel — Rumex acetosella — Good food for salads, kidney aid

243Milkweed — Asclepias syriaca — white milky sap for warts, edible flowers and very young pods

250Prairie Dock — Silphium terebinthinaceum — decorative prairie plant… Read more

Unfolding crowns

crown-6Photograph by Alyssa Locke. Photo editing by Alyssa Locke and Ken McCarthy.

– Ken McCarthy
PlantWisdom.org

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Mullein Flowers

flowers-1Photograph by Alyssa Locke. Photo editing by Alyssa Locke and Ken McCarthy.

– Ken McCarthy
PlantWisdom.org

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Crowns

03Photograph by Alyssa Locke. Photo editing by Alyssa Locke and Ken McCarthy.

– Ken McCarthy
PlantWisdom.org

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What is this?

03Photograph by Alyssa Locke. Photo editing by Alyssa Locke and Ken McCarthy.

– Ken McCarthy
PlantWisdom.org

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