One of my lasting childhood memories involves standing in front of huge European cathedrals. My mother would explain to me that they were built across centuries, often by generations of masons within one family, given that trades were handed down from father to son. A strange thing to think that you would not see the completion of your work, but others related to you might. And then the endless dragging through pews and naves and side altars would commence…. (For the record, there isn’t a cathedral I have left out in all of my adult travels – clearly I was hooked.)

The memory was triggered by reading about a parallel development in science. What would you call a scientific experiment that lasted 142 years, so far? I call it old. And remarkable. And astounding.

Started in 1879 by a botanist at the campus of what is now Michigan State University, the experiment is ongoing, tended by subsequent generations of scientists, and planned to last another 80 years. What could it be?

William Beal, a frequent correspondent with Charles Darwin, was interested in how long seeds would last in the soil until they could no longer germinate – a question pressing for agricultural farmers weeding their fields. To find out how long dormancy could last, he buried 20 bottles, each with 1,050 seeds from 21 species, the bottles uncorked and placed with the neck downward to avoid accumulation of water. All weeds!

Agrostemma githago, Amaranthus retroflexus, Ambrosia artemisiifolia, Anthemis cotula, Brassica nigra, Bromus secalinus, Capsella bursa-pastoris, Erechtites hieracifolia, Euphorbia maculata, Lepidum virginicum, Malva rotundifolia, Oenothera biennis, Plantago major, Polygonum hydropiper, Portulaca oleracea, Rumex crispus, Setaria glauca, Stellaria media, Trifolium repens, Verbascum thapsus, Verbascum blattaria.

Photographs today are of some of these – and no, I did not have the patience to label them all.

Buried in a secret location, the bottles remained undisturbed. Opened first every 5 years, then 10, then 20 years, to make the experiment last, one bottle was removed from the cache at a time, brought to the lab for germination under favorable conditions, and nowadays for cell structure analysis with the tools of genetic research. During the latest round they removed some seeds of Setaria glauca — a species of millet, which hasn’t sprouted in the experiment since 1914 — for genetic analysis of DNA and RNA. It allows scientists to find out whether the seeds’ machinery has degraded or persisted, how damaged the genetic material is and what processes may still be possible even if germination isn’t. (Ref.)

From Beal on down, each researcher entrusted with the map for the location chose a scientist from another generation to carry on. This year it has been more than one successor, given the fear that a single person might fall prey to illness or accident, and also included, for the first time ever, women. Maybe there is progress after all….

When bottle # 15 was removed in the year 2000, Verbascum blattaria, a splay-leaved, yellow-flowered herb, seemed to be the most viable. Nearly half the Verbascum seeds bloomed, even though they’d been dormant for 121 years. Its common name is Moth mullein (so named because of the resemblance of its flowers’ stamen to a moth’s antennae.) (See image below.)

After a treatment with cold, simulating a second winter, a single seedling of Malva pusilla sprouted as well – you know it as small mallow.

This year’s bottle (one year delayed due to the pandemic) was removed on April 15th. So far one seed has sprouted, still waiting on a full report. The scientific interest has, of course, expanded over the century, away from the question of weeds’ effects on agriculture, towards the preservation of species under changing climate conditions. (I wrote a short bit about that here 4 years ago.) Next to dooms-day prevention seed vaults, Indigenous food sovereignty projects are a also increasingly focused on seed viability research.

“The soil seed banks underlying different habitats are “great unknowns” in restoration ecology, as experts try to promote native species while fending off invasive ones, said Lars Brudvig, an assistant professor at Michigan State and another member of the Beal seed experiment team. In some cases, seeds of endangered or long-lost plants may even be hiding out in the soil.“

Next step in this experiment? Expose the seeds to smoke. It might trigger germination in plants that thrive after wildfires. The fireweed seeds included by Beal in the samples have never once sprouted. Maybe this is what will do the trick. Other than that? Wait for 19 years to exhume the next bottle. We’ll be old. Well, ancient, really.

Today’s song is called Through the Woods – the nightly adventure of the seed-searching ministry of William Beal, in my imagination. The musician, Yasmine Williams, is a young artist who is changing the way of traditional guitar playing.

Then again, Juvenescence would work as well.

On a personal note, since I mentioned the Indigenous food sovereignty project above: wild rice harvesting is threatened by the Enbridge Line 3 Oil Pipeline approved in Minnesota’s Wild Rice Region. As I have written here before, I am part of a documentary project that tackles the issues of Climate Resistance, spearheaded by indigenous leadership. On May 6th, 6-7:30 PM we have a webinar, Climate  Resistance: Art, Action and Allyship.

Hosted by Portland State University, the panel includes artists, activists and an attorney who bring their wisdom and knowledge to the Necessity film project– a two-part documentary that features Indigneous leadership in responding to the climate crisis and shows how activists are using legal tactics, including the necessity defense, in the fight to save the planet.

Registered attendees will receive a link to watch Necessity Part I: Oil, Water and Climate Resistance with their donation, and will also get a link to the panel five days before the May 6th event.  Contributions to this event support Necessity Part II, currently in post-production.

Tickets are available via Eventbrite and more information about the project at our website and on social media @necessitythemovie. 

(The Eventbrite site will give you a choice of dates – just click on one that works for you and from then on things are straightforward – zoom ticket will be delivered to your email.)