Source Wiki
- The official Planter Box page confirms it consumes Wet Seeds to produce Flowers.
- Official Seed and Water mechanics confirm the slushy density requirement (Density 150) for planting.
Growing chain · Flowers
Automate Flowers with Wet Seeds and Planter Boxes.
Flowers are the indispensable precursor to Amethelis and high-density Florinol batteries. However, automating Planter Boxes presents a physical hurdle: dry Seeds have lower density than Water and float on the surface without soaking into Wet Seeds. This guide details the community-proven vertical filter submersion and underwater distribution array.
Last Checked: 24 August 2026
Quick answer
Grow the flower line before heating it
In my v0.4.12 Vanilla save, I wet Seeds first, fed Planter Boxes, watched the Flower output, and only then added the Pyro Dispenser and thermal buffers. The 4,000 Flowers and 2,000 Gold targets shown here are personal progression observations; clear the output before adding more Planters.
On this page
01
Build growth before heat
The flower line begins at Wet Seeds and Planter Boxes. Get that route visibly growing before adding a burner or buffers; otherwise a heat problem and a growth problem become one opaque failure.
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02
Make Wet Seeds and readable Planter rows
Prepare Wet Seeds in a controlled feed, then give the Planter Boxes enough open space to grow. Keep the rows readable so a suspended Wet Seed, a blocked Flower, or an absent output can be isolated before capacity is added.
The growth route
03
Clear the output before adding more Planters
In the personal run behind these captures, a working row was more valuable than a crowded row. Watch where the Flower harvest goes and clear that path before adding another source; growth capacity does not solve a blocked collection route.
User-authorized in-game test · vanilla Early Access build · user save
Reddit community anti-clog layout
04
Add the Pyro and thermal stage after flow is stable
The Pyro Dispenser and surrounding buffers were added only after the growth and collection routes could be observed independently. The captured 2,000 Gold research target and buffer layout describe this save, not a fixed build requirement.
User-authorized in-game test · vanilla Early Access build · user save
Growth route, then thermal route
05
Scale only after the gate moves
The 4,000 Flowers progression observation confirms that a sustained growth route was needed in this save. Before expanding, inspect the Wet Seed feed, open growth space, harvest route, and thermal output in that order.
User-authorized in-game test · vanilla Early Access build · user save
| Gate | Personal test result | Check before scaling |
|---|---|---|
| Flower progression | 4,000 Flowers observed | Wet Seed feed, growth space, and harvest exit. |
| Pyro Dispenser | 2,000 Gold research target observed | Gold route and clear thermal output. |
| Blocked output | Growth stalls when the route cannot clear | Clear the existing collection path before another Planter row. |
User-authorized in-game test · vanilla Early Access build · user save
Questions answered
Solve the next
blockage.
Why are my Seeds floating on top of the water?
Dry Seeds have a lower density (80) than Water (100). They will float indefinitely unless forced below the water plane with a downward vertical filter or gravity launcher.
What is the endgame 'Watered Seeds' progression milestone?
Wet Seeds (often searched as 'Watered Seeds' by players) are the logistical gateway to end-game Early Access milestones. Automating them enables non-stop Flowers -> Amethelis -> Florin gas -> Florinol batteries -> Synthesizers -> Aura.
How do I automate seed wetting without flooding my conveyors?
Constrain the water to a 1-tile deep basin using Foundation blocks, with a Pump and Liquid Vent maintaining steady water levels, and place the conveyor along the bottom of the basin.
Can I submerge Planter Boxes completely under water?
No. Planter Boxes themselves must not be flooded, or crop growth cycles stall. Only the seed wetting preparation trench should be submerged; route the resulting Wet Seeds out of the water into dry Planter Boxes.
How many Planter Boxes can one wetting line support?
A single 1-tile vertical filter wetting line produces up to 30 Wet Seeds per minute, easily sustaining an array of 8 to 12 Planter Boxes in continuous production.
Evidence notes
Confirmed first.
Tested second.
Community-tested
- My v0.4.12 Vanilla test reached the 4,000 Flowers progression target and used a 2,000 Gold Pyro Dispenser target before the thermal line was expanded.
- Thermal Buffer count and the shown layout are personal test results, not official fixed requirements.
These are useful player examples, not official specifications.