Collecting in the Wild

Pine Barrens Seed Collecting
Transferring miniscule seeds into a manila envelope for safe transport back to BBG. Photo by Anjali Satyu.
Eastern showy aster
Eurybia spectabilis collected at the Parker Preserve, Chatsworth, New Jersey. Photo by Uli Lorimer.
Black Jack Oak
Quercus marilandica collected at Stafford Forge Wildlife Management Area, West Creek, New Jersey. Photo by Uli Lorimer.
Pitch Pine
Pinus rigida growing at the Parker Preserve, Chatsworth, New Jersey. Photo by Uli Lorimer.
Seaside threeawn grass
Aristida tuberculosa collected from the Parker Preserve, Chatsworth, NJ. Photo by Uli Lorimer.

You won’t find many of the species growing in the Native Flora Garden expansion at a typical nursery. Most came from seeds collected in the wild by me and other horticulturists and botanists from BBG along with our partners at the Greenbelt Native Plant Center. We applied for permits to visit several natural areas many times over three years to capture our specimens at the just the right time. The seeds we gathered were then propagated by Greenbelt staff, which was no easy task. They often had to improvise to create the precise conditions required to make the seeds germinate. Here are a few examples of our finds.

Eastern Showy Aster

Eastern Showy Aster
Eurybia spectabilis collected at the Parker Preserve, Chatsworth, New Jersey. Photo by Uli Lorimer.

Asters, like dandelions and other composite-structured flowers, are wind dispersed, so to collect seeds, you have to go at just the right time—late enough that enough seeds have matured, but before they’ve blown away. You also want to collect from as many flowers as possible to increase genetic diversity. We collected only from large stands and always left at least two thirds of the flowers, enough for them to propagate. The actual collection is pretty easy—just pick the flower heads and bag them up in paper.

Seaside Threeawn Grass

Seaside Threeawn Grass
Aristida tuberculosa collected from the Parker Preserve, Chatsworth, NJ. Photo by Uli Lorimer.

The seed of this beach grass is at the base of its vertical shaft. At the top you see the three awns. They’re tightly twisted when dry, but when they get wet, they unwind to drill the seed into the sand. We collected the seeds by stripping them off the top of the plant by hand. We had to be careful, though, because they’re a bit prickly.

Blackjack Oak

Blackjack Oak
Quercus marilandica collected at Stafford Forge Wildlife Management Area, West Creek, New Jersey. Photo by Uli Lorimer.

Collecting acorns is just a matter of going out at the right time and picking them up off the ground before the squirrels get to them. Then they have to be buried fairly deeply to germinate. We have about 20 saplings in the garden that were grown from acorns gathered from this former bog-iron site.

Pitch Pine

Pitch Pine
Pinus rigida growing at the Parker Preserve, Chatsworth, New Jersey. Photo by Uli Lorimer.

Pinecones can also be picked up off the ground, but the best ones—those that are most viable—are usually still attached to the tree, so we use pole pruners to collect them. In nature, their seeds are dispersed during forest fires; to propagate them, we put them on a baking sheet in a 200°F oven until we hear them pop. Inside the cone, the seeds have a winged structure similar to a maple’s.


Comments

August 25, 2013
Alex Wilson

I’m trying to establish native grasses and sedges in a section of our southern Vermont woodland that was recently cleared. Can you tell me whether the grass and sedge seeds I collect need to be hardened (by storing in a refrigerator or freezer) before planting? I am hoping to harvest seed locally this month and next (August–September) and plant as soon as possible thereafter in the hopes of establishing an area this fall. Do you have any guidance?



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