Tiny Eden: where plasmids come from
Plasmids are bought, not produced. A player in the Steam discussions reports finding them in the shop under the Garden tab at $199 each. That is why handing peas to the Laboratory leaves the plasmid count at zero — the peas and the plasmids are two separate inputs.

- Shopwhere
- Gardentab
- $199each (reported)
- Playersource
Why the lab shows zero after you deliver peas
The thread that produced this answer opens with exactly that confusion: everything the Laboratory asked for had been handed in, and the plasmid count had not moved. The reply reframes the problem rather than solving it — plasmids were never going to appear from the delivery. The peas matter elsewhere too: for the mutation quest they only count once spliced and replanted (getting mutated peas to count).
That distinction matters because the Laboratory takes deposits of several kinds, and the Transmission Vector step is where players most often get stuck on what it wants. Database books go onto a pallet to unlock it, peas satisfy their own requirement, and plasmids are a purchase you make elsewhere.
What the shop tab looks like
Selling and buying in Tiny Eden happen at physical locations rather than through a global menu, which is part of why an item sitting in a shop tab is easy to miss when you are expecting a research reward.
The reported price of $199 is high relative to early-game money — the quest gating the shop itself is a £100 target — so plasmids read as a mid-game purchase rather than something you pick up on day one. One player reports they could not get plasmids at all until Code Green HQ was built.
The developers put the price at $199, in the Garden tab on the fourth row, and say you need Code Green reputation level 1. If the Splice button will not press once you have them, see the splice page; for earning the money, see the money page.

How this connects to the Laboratory
Update #1 confirms the Laboratory is a real location with its own cutscene, its own notes and its own art assets — two separate lines in the patch notes touch it. It is a place you unlock and then use, not a menu.
So the sequence players describe runs: deposit database books on the pallet to unlock the lab, satisfy whatever the lab asks for, and buy plasmids separately when you need them. None of that chain is documented officially (待确认).
The Database and its books are on the database books page.

If plasmids still do not appear
Check the shop tab rather than the lab. The reply names the Garden tab specifically, and shop inventories in this game are split across tabs rather than presented as one list.
It is also worth updating first. Update #1 fixed issues with notes and quest interactions, including cases where notes failed to appear at all — and a quest step you never received looks identical to one you cannot complete.
What is not known
How many plasmids any given step needs, what they do once acquired, and whether they can ever be produced rather than purchased are all undocumented. The pre-launch FAQ covers growing, soil, cooking and the economy, and does not mention plasmids at all.
That gap is worth stating rather than filling. One forum reply is the entire public record of this mechanic at the time of writing.
Not confirmed yet
- What plasmids are used for is not documented.
- Whether the $199 price is fixed across regions or patches is unconfirmed.
- Whether plasmids can be produced rather than bought is not stated.
Frequently asked
- Where do you get plasmids in Tiny Eden?
- A player report says they are sold in the shop under the Garden tab at $199 each, rather than produced by the Laboratory.
- Why does my lab show zero plasmids after I delivered peas?
- Peas and plasmids are separate inputs. Delivering peas does not generate plasmids — they are bought.
- What do plasmids do?
- Not documented. No official source describes their function (待确认).
Sources
- Tiny Eden Steam Community discussions
- Update #1 patch notes (Steam, 8 Sep 2026)
- Official Tiny Eden FAQ (Steam, 4 May 2026)
- Steam thread: “License for Complete project: Code Green HQ”
- Steam thread: “Mutated Peas?”
- Update #3 patch notes (Steam, 10 Sep 2026)
- Steam thread: “At least give me a proper explanation.”
Every fact here is drawn from the official sources above. Points the developers have not confirmed are marked as not confirmed rather than guessed.