Archives For hallowfest

Extreme Pumpkins

Adriana Reyneri —  October 12, 2013 — Leave a comment

Riley Obenchain conjures a feeling of mischief and magic.

He wears a tattered straw hat, trimmed with a red poppy, that looks like something a scarecrow might wear. His bushy black eyebrows dance when he talks, bringing to mind the woolly bear caterpillars abundant in the fall. A playfulness—tinged with the macabre—also shows in the jack-o-lantern characters Obenchain creates each year for HallowFest, the Garden’s popular, family-friendly celebration of Halloween.

PHOTO: Riley Obenchain with giant pumpkins.

Riley Obenchain poses with some enormous jack-o-lantern fodder in the Regenstein Fruit & Vegetable Garden.

Obenchain’s ghoulish, yet somehow gallant, jack-o-lanterns provide a mild dose of horror while eliciting smiles and laughs. There’s the tiny pumpkin gripped in the long, pointy teeth of a massive pumpkin. The little guy has a sort of “Oh, no, Mr. Bill” look on his face. The big, toothy smile on another jack-o-lantern gives a mixed message. Obenchain describes it as an “I’m-happy-to-see-you-because-I’m-going-to-eat you” look.

“I get a lot of, ‘Wow! I could never do that!’” says Obenchain, who’s helped keep the Garden’s trams, lawnmowers, and other machinery running smoothly for 35 years, “but in actuality, anyone can do this.” Here are a few of Obenchain’s tricks and techniques, gleaned in a recent interview.

PHOTO: A white pumpkin with a shocked expression and a rubber snake in its mouth.

The removed pieces of the eyes of this “Ernie” are recycled as ears; leftover mouth pieces are used for hands.

Where do you get your inspiration?

A lot of times, the shape of the pumpkin has the idea. The pumpkin determines what you’re going to carve. How is it going to sit? Is it a “Bert” or an “Ernie”? (A Bert has a more elongated shape, while an Ernie has a round, well, pumpkin head. Obenchain is cultivating a large pumpkin this year that has a sort of crocodile look to it.) 

What are your favorite tools?

I like using old-fashioned steel knives. (The steel is more rigid than stainless steel. Obenchain uses a range of sizes and keeps them sharp. He taps them into very thick pumpkins using an old hickory log that he’s kept for years. Toothpicks, bamboo skewers, or even the occasional nail can be used to patch mistakes. A trowel with a sharpened end makes a good seed scooper.)

What sorts of other materials do you use?

Long, skinny gourds for antennaes. Gourds for ears and eyes. One year I used a forked stick for the tongue of a snakelike pumpkin. (Obenchain shows photos of jack-o-lanterns carved by nephews under his tutelage. One looks a little worse for wear, with crosses for eyes and an arrow through its temples.)

What is the biggest pumpkin you’ve ever carved?

An Atlantic Giant squash (Cucurbita maxima ‘Atlantic Giant’). It topped out at 1,010 pounds. (The record-breaker could cover a small table top. Obenchain needed a hand-pruning saw to carve its foot-thick walls. The big galoot had to be moved with a forklift. Another behemoth was so long that Obenchain had to crawl inside to scoop it out, creating the ultimate Obenchain image—a man-eating pumpkin!)

PHOTO: A devilish pumpkin with lots of pointy teeth.

Carving stalks instead of using toothpicks to inset eyeballs ensures they don’t rot out and stay in place while your jack-o-lantern is on display.

While most of the pumpkins carved for Hallowfest are from outside growers, each year, Obenchain tries to grow a few giants of his own in friendly competition with other Garden staff members. This year, he’s growing another ‘Atlantic Giant’ with seeds saved from the thousand-plus-pound monster—if the raccoons don’t get it first!

Join us for HallowFest on October 26 and 27, from 6 to 9 p.m. on Saturday and 4 to 7 p.m. on Sunday, to see Obenchain’s creations for this season.


©2013 Chicago Botanic Garden and my.chicagobotanic.org

You may think of the three greenhouses as warm and cozy places to visit on a chilly fall day, but look sharp! There are dark and chilling secrets among the plants you may see there…

In the Arid Greenhouse

PHOTO: Giant toad plant.

Carrion flower or giant toad plant (Stapelia gigantea pallida) smells about as attractive as you might guess from its name.

ROT ROT ROT:  Though the star-shaped flowers of the toad plant look beautiful, they smell like rotten meat. (The scent attracts flies, which are the plant’s pollinators.) We warned you.

DEADLY SAP:  The milky sap of many plants in the euphorbia family irritates the skin and eyes…and is poisonous to humans and animals if ingested.

PHOTO: Peruvian apple cactus.

“Night owls” — bats, really — pollinate the peruvian apple (Cereus peruvanius).

THE BAT SIGNAL:  All cactus flowers last just one day—but the flowers of the Peruvian apple cactus only bloom one night, the better to attract its pollinator, a bat.

SHARP LEAVES:  Although cactus needles are nothing more than very skinny, narrow leaves, they are sharp enough to hurt. The tiny, hairlike needles can really get under your skin…ouch!

In the Tropical Greenhouse

PHOTO: Cocoa tree.

The fruit of the cocoa tree (Theobroma cacao) give us our favorite dessert: chocolate!

CHOCOLATE AND FLIES:  Think about this as you’re eating your Halloween candy: tiny flies (called midges) are the pollinators for the cocoa tree. Therefore, every bit of chocolate you eat started with a fly…yum yum.

BANANA BLOOD?  When a leaf is trimmed off the banana plant, the sap that runs out is initially clear…but then it turns purplish-brown, leaving “blood” on the clothes of those who trim it. Is that a stain on your shirt?

KILLER BUGS:  When plant-eating bugs attack in the greenhouse, we release the appropriate bug-eating bugs. Although these mini-carnivores are mostly too small to be seen by humans…wait, do you hear munching?

In the Mediterranean Greenhouse

THE STRANGLER:  A rubber plant called the “Strangler Fig” has long, creeping roots that climb over other plants, tapping into that plant’s circulatory system and eventually smothering it. Most rubber plants are harmless…did you just see something move?

PHOTO: Deppea splendens.

The colorful and elegant Deppea splendens can be found in our greenhouses.

THE SPOOKIEST OF ALL:  By tearing down forests and destroying its natural habitat, humans have caused plants like Deppea splendens to become all but extinct. The only known survivors live in botanical gardens like this one.

Happy Halloween, everyone!