The seller messaged me a photo at eleven on a Tuesday night: a half-grown Anthurium that looked like papillilaminum crossed with something paler, broader, with a quilted lamina and a peduncle that flushed wine-red in the light. No tag. No paperwork. The mother plant had come, he said, from a Panamanian collector who died in 2019, and the only other person he knew of growing the same cross had lost theirs in a heatwave the previous summer. He wanted a number. He wanted it that week.
I have done this enough times now to know the panic that comes next isn't really about money. It's about the absence of a ladder. When you sell a Monstera deliciosa 'Thai Constellation' you can look at four marketplaces and a closed auction or two and triangulate inside an hour. When you sell something nobody else has, there is no ladder. You have to build one out of whatever wood is around, and then convince a buyer to climb it with you.
Comps are a comfort, not a method
The retail instinct is to find a comparable sale and adjust. That works for Philodendron spiritus-sancti seedlings, for variegated gloriosum, for any cultivar that moves often enough to leave a price trail. It does not work for a one-off hybrid, a wild collection with credible provenance, or a sport that has produced exactly three leaves in captivity. Comps assume a market. A market assumes repeat transactions. You don't have either.
What you have instead is a set of inputs the buyer cares about, weighted differently by buyer. The job is to identify those inputs, weight them honestly, and assemble a number you can defend out loud. If you can't say the price in a sentence and have it sound like a sentence rather than a wish, the number is wrong.
I keep a short list of the inputs I actually use. Provenance. Identifiable parentage. Vegetative maturity. Reproducibility. The depth of the buyer pool. The cost of being wrong. None of these is a multiplier. They are arguments, and the price is the sum of arguments you can make with a straight face.
A price without comps isn't a guess. It's an argument — and the strongest arguments are the ones the buyer can repeat to themselves later.
Provenance does most of the work
A plant with a paper trail is a different object from a plant without one. Not a better-looking object, necessarily — sometimes the photos are identical — but a different one, the way a signed first edition is a different object from an unsigned reprint. With aroids the trail is usually a chain of growers: who collected it, who it went to, who divided it, who you got it from. Names matter. Dates matter. A photo of the mother in situ matters more than people admit.
For the Panama Anthurium I asked the seller for everything: the original collector's name, the year, the elevation if he had it, photos of the mother plant before the owner died, and the names of anyone else who had received divisions. He had most of it. The collector was someone I'd heard of through two other growers. That alone moved the floor of the price by a meaningful amount, because it meant I could, if pressed, hand the next buyer a story with three independent witnesses.
Provenance is also where bad pricing goes to die. A grower who says 'it came from a guy in Ecuador' and can't produce a name is not selling you a documented plant. They're selling you a hope. The price should reflect the hope, not the documentation.
What the plant can become
A juvenile Anthurium with three leaves is not the same investment as the same plant with twelve leaves and a fat basal pup. The market prices maturity heavily, partly because mature plants are harder to kill and partly because mature plants are the ones that get photographed. A buyer paying serious money wants the plant to look, within a year, like the photo that made them want it.
I think about reproducibility next. Can this plant be divided? Will it throw basals, or is it a single growth point that will take five years to make a second crown? Velvet Philodendron species like verrucosum basal readily; some of the truly slow Anthurium — forgetii, certain warocqueanum clones — do not. A plant that will pay the buyer back with divisions in eighteen months is worth more than one that won't, even if the leaves look identical today.
The last question in this bucket is the ugly one: how easily can someone else produce the same thing? If a hybrid has named, available parents, somebody will redo the cross. If the parentage is unclear or the mother is dead, the plant is closer to unique, and unique survives bad markets better than rare does.
The buyer pool is smaller than you think
For a plant nobody else has, the buyer pool is not 'collectors'. It is, realistically, between eight and forty people worldwide who will both recognize what they're looking at and have the money to act on it that month. I keep a rough mental list for each genus. For elite Anthurium it is maybe twenty-five names across the US, Europe, and Southeast Asia. For velvet Philodendron it is a different twenty-five, with some overlap. For Hoya species fresh out of Sulawesi it is a third group entirely, and they mostly don't talk to the first two.
Pricing has to survive contact with that list. If I name the price out loud and can picture three people on the list nodding, the price is probably right. If I can picture one person nodding and two laughing, it's too high. If everyone nods immediately, it's too low, because someone on the list would have already paid more and I missed it.
This is also why discreet sales outperform public listings for genuinely uncommon material. A public listing invites the whole internet to render a verdict, most of whom are not buyers. A private offer to four people invites only the verdict that matters.
Anchoring without lying
Even without direct comps, there are adjacent anchors. A new Anthurium hybrid can be anchored against documented sales of its closest relatives — not as a comparable, but as a reference point the buyer already trusts. 'This is in the neighborhood of a mature papillilaminum x luxurians, with the following differences,' is a sentence a serious buyer can metabolize. It tells them where on the shelf to put the plant before they decide what it's worth.
The risk is anchoring dishonestly. If you anchor a mediocre hybrid against the best-known clone of its parent species, you are not pricing, you are marketing, and experienced buyers can smell it from the first photo. The anchor has to be one you'd accept if the roles were reversed. I try to pick the anchor that makes my plant look slightly worse than it is, then let the buyer talk themselves back up.
Currency and geography also anchor quietly. A price in euros from a Dutch grower reads differently from the same number in dollars from a Florida nursery, even before shipping and CITES enter the room. I try to state prices in the buyer's currency and absorb the small friction of conversion. It removes one excuse to walk away.
The cost of being wrong
Underpricing a one-off plant is not a recoverable mistake. The plant leaves your collection, the buyer flips it within a month, and you watch the real number get discovered on someone else's invoice. Overpricing is recoverable: the plant sits, you grow it on, the next leaf is bigger, and the price quietly rises with the photograph.
Given that asymmetry, my default is to price slightly above where I think the market clears and to be patient. Patience is the cheapest input in this business and the one most sellers refuse to use. A plant that takes four months to sell at the right price is a better outcome than one that sells in a weekend at the wrong one, assuming you can keep it alive and looking good in the interim.
The exception is health. If a plant is declining, or if I'm about to travel, or if the species hates my water, I price to move and tell myself the truth about why. A fast sale at a real number beats a slow sale of a dying plant at an imaginary one.
What I told him on Wednesday
I went back to the seller the next morning with a range, not a number, and the reasoning behind both ends of it. The low end assumed I could not verify the collector's name with a second source; the high end assumed I could, and that he'd include the original photographs of the mother. I told him which end I thought was likelier and why. He pushed back on one input — the reproducibility question, because the plant had already thrown a basal he hadn't mentioned — and the number moved accordingly.
We landed inside the range, closer to the top than the bottom, and the plant went to a grower in Germany who I knew would photograph it well and not flip it. That last part is not part of the price on paper, but it is part of the price in practice. Where a plant goes affects what the next one like it is worth, and sellers who ignore that are pricing only the transaction in front of them.
A price without comps isn't a number you find. It's a number you build, in public, with a buyer who is willing to build it with you. The framework doesn't make the building easy. It just makes sure that when the plant ships, both of you know exactly what you agreed to, and why.