simonw 14 hours ago

"In 2023, Minnesota resident Travis Gienger, who teaches horticulture, aptly enough, broke the world record for the biggest pumpkin. His 2,749-pound entry beat the old record, set in 2021 by an Italian farmer, by 47 pounds."

I was there for that! I used my photo of the moment he beat the world record in my blog post about GPT-4 vision prompt injection attacks: https://simonwillison.net/2023/Oct/14/multi-modal-prompt-inj...

Here's my Mastodon thread from this year's competition. Travis competed (and won) again but didn't get a new world record, though another competitor did set the record for the largest pumpkin ever grown in California: https://fedi.simonwillison.net/@simon/113306150061413548

pvaldes 18 hours ago

(ehum... vegetable steroids -> https://en.wikipedia.org/wiki/Gibberellin ).

Genetic and care help, a lot, but there are fertilizers and "fertilizers".

  • 082349872349872 18 hours ago

    I dimly recall a Daedalus DREADCO column which, starting from hydroponics, was exploring the limits of artificial vegetative growth, and came to the conclusion that under the right conditions, it was all a question of how much energy one was willing to pump in.

    Maybe we need a fleet of satellites beaming formed microwaves down to our giant Cucurbitaceae?

    (my wife kept prompting me to harvest my radishes this summer; by the time I actually got around to it, they'd grown to sizes ranging from a small potato to an entire fist)

    • gradschoolfail 5 hours ago

      Most impt itswise problem of our preneoceramic age is [how to sell] radiative cooling..

      Unfortunately, being not on the convex hull (pareto front) of the funders (now or ever? But thanks Stanford for trying!) (that is, not amenable to dual usage..?)..

  • Mistletoe 16 hours ago

    I was hoping you were wrong but nope. We can’t even have pumpkin growing contests anymore without PEDs.

    >Gibberellic acid: In the young fruit stage of pumpkin, apply 10-20mg/L gibberellic acid solution to the young fruit, apply once every 5-7 days for a total of 2 to 3 times, which can obviously promote hypertrophy and accelerate maturity, which can improve quality.

    >https://m.plantgrowthhormones.com/info/for-pumpkin-planting-...

joe8756438 17 hours ago

I’ve had terrible luck growing pumpkins until this year when I put five root bound starts in the former bedding of my goose flock. All the starts were tangled together in a two gallon pot, didn’t even bother separating. Those plants easily produced 200lbs of pumpkins.

My neighbor, who gave me the starts and took much greater care with the plants, had all of his die from various pests and diseases.

  • dylan604 14 hours ago

    I had a pumpkin patch growing earlier this year that was decimated by bugs. I tried every "organic" method of treating the bugs to no avail. It was all just for the lulz, and specifically wanted to avoid pesticides. The bugs won

    • joe8756438 11 hours ago

      My takeaway from that experience is that nutrition is the best way to prevent disease/pests. once there’s a problem it’s probably too late.

      • dylan604 10 hours ago

        The plants were healthy until the bugs. The vines were growing, the leaves were huge, and they had just started to produce flowers. I've never seen the type of bugs, some stink bug type of beetle, in my yard ever before. Now that I've removed the dead plants, there's no sign of the bugs. For as many as there were, I'd expect to see some remaining. It's always a learning experience growing new plants

smusamashah 18 hours ago

> especially as they mature and gain from 30 to 50 pounds per day

That's about 0.25 grams per second. Or 15 grams per minute. If put on a scale, i am assuming you could witness it growing in near real-time.

  • adrian_b 17 hours ago

    The greatest part of that continuously added mass is just water pumped from the soil.

    When you compute the added dry mass per second, divided by the mass of the plant, the rate is still big, but much less impressive.

    • adriand 17 hours ago

      That’s what I’m going to tell myself when I stand on the bathroom scale in the morning. “I’m not fat, if I just compute my dry mass, I’m in superb condition.”

      • Swizec 15 hours ago

        > That’s what I’m going to tell myself when I stand on the bathroom scale in the morning. “I’m not fat, if I just compute my dry mass, I’m in superb condition.”

        So fun fact: I like to weigh myself before and after long runs on sunday (15mi+). 5lbs to 7lbs difference. All water. You really can sweat off 7lbs of your weight in a couple hours if you want to.

        • bookofjoe 10 hours ago

          Reminds me my little brother in high school, running for hours in a rubber suit to make his weight.

        • basch 10 hours ago

          probably mostly respiration?

metalman 15 hours ago

Giant vegtable growing contests are ancient and in certain pacific island populations,social status is closely conected to the size/quality of the yams that someone grows the first true gigantic pumpkins were grown just down the road from me,and giant pumpkins are growing (hidden) everywhere,highly competitive and subject to ANY tactic to grow/get a bigger pumpkin or judging by the paranoia,finding a way to induce splitting in a rivals pumpkins,as any hole or split,suspicious marks,disqualify a pumpkin from competition

sharpshadow 4 days ago

Would be fun if somebody would grow them in a big acrylic glass cube to make them come out square.

ReptileMan 18 hours ago

And not a single Blandings Castle or Lord Emsworth joke.