The Major Flaw of Speed-Gro as a Fertilizer

Which optimization solution do you think should be adopted?

  • Full percentage on regrowth

  • Half percentage on regrowth

  • Flat 10% reduction on regrowth


Results are only viewable after voting.

OK_123

Greenhorn
Dear ConcernedApe,

Thank you for your years of continuous maintenance and updates. While planning my annual planting layout, I noticed a significant asymmetry in the Speed-Gro mechanic that I'd like to report systematically.

Current Situation

Speed-Gro currently only reduces the number of days to first harvest. For single-harvest crops, this covers the full lifecycle and works as intended. But for multi-harvest crops such as cranberries, blueberries, coffee beans, and ancient fruit, the fertilizer becomes completely ineffective after the first harvest — the regrowth cycle is entirely unaffected.

Examples:

Cranberries: 7 days to first harvest, reduced to 4 days; but the regrowth cycle is always 5 days.

Blueberries: 12 days to first harvest, reduced to 9 days; regrowth is always 4 days.

Ancient fruit: 28 days to first harvest, reduced to 15 days; regrowth is always 7 days.
The Unfairness

With the same fertilizer investment, single-harvest crops gain a 100% benefit across their entire lifecycle, while multi-harvest crops only benefit during the first cycle. The regrowth phase, which accounts for 80%–90% of these crops' productive lifetime, receives zero benefit. This systematically excludes multi-harvest crops from efficient fertilizing strategies, creates a “new player trap,” and weakens the strategic depth of the fertilizer system.

Key Comparison: Deluxe Retaining Soil And
Deluxe Fertilizer


Deluxe Retaining Soil works identically on single-harvest and multi-harvest crops — it doesn't treat crops differently based on whether they regrow. This proves the game already has a precedent for fertilizers applying equally to all crops. Speed-Gro should follow the same principle: treat first harvest and regrowth equally.

Deluxe Fertilizer works the same on multi-harvest and single-harvest crops — on Ginger Island, one application gives you permanent quality returns. By comparison, Speed-Gro's regrowth mechanic is even more unreasonable.

Most importantly, Fertilizer, Speed-Gro, and Retaining Soil are all permanent on Ginger Island — Fertilizer even provides a lasting boost to crop quality on every harvest. Yet while Fertilizer and Retaining Soil apply equally to all crops, Speed-Gro is the sole exception: it benefits only single-harvest crops and offers almost nothing to multi-harvest ones.

Best Suggestion

Let Speed-Gro's percentage apply directly to the regrowth cycle: Regular Speed-Gro −10%, Deluxe Speed-Gro −25%, Hyper Speed-Gro −35%. This is the most unified mechanic, aligns with the design logic of Deluxe Retaining Soil, and also closes the gap between the description and the actual effect.

If strength is a concern, alternatives such as a half-effect on regrowth or a flat −10% reduction could be considered. But any of these would be fairer and more reasonable than the current “completely ineffective” state.

Thank you for reading. I look forward to your thoughts.

Your OK_123
 
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VladM

Tiller
Let Speed-Gro's percentage apply directly to the regrowth cycle: Regular Speed-Gro −10%, Deluxe Speed-Gro −25%, Hyper Speed-Gro −35%.
To me it is not the best option, it is overpowered. Speed-Gro is not expensive, put an ancient fruit (or any other regrowing and expensive fruit/berry) into a greenhouse, apply speed-gro and you get endless extra production for nothing (in the long run the price of speed-gro in this case is zero). I would vote for 4th option: "Speed-Gro is to speed up growth, not to speed up ripening, so it shouldn't affect fruit regrowth"

Edit: reword some sentences
 

zack123

Local Legend
To me it is not the best option, it is overpowered. Speed-Gro is not expensive, put an ancient fruit (or any other regrowing and expensive fruit/berry) into a greenhouse, apply speed-gro and you get endless extra production for nothing (in the long run the price of speed-gro in this case is zero). I would vote for 4th option: "Speed-Gro is to speed up growth, not to speed up ripening, so it shouldn't affect fruit regrowth"

Edit: reword some sentences
Have to agree with this. The speed-gro should only affect the initial growth otherwise it becomes overpowered. Plus the comparison between the retaining soil and the speed-gro is not great since one is a life improvement just allowing you to either not water or more efficiently use space belonging to sprinklers (depending on the retaining soil). While the speed-gro is to help cram another harvest in that season. If the speed-gro affected the ripening it would lead to way more harvest crammed into a season. Which sounds great, but I feel like it would just reinforce the idea of speeding through the gameplay instead of being more relaxed and taking your time. After all the game already has many ways to farm money fast, so I fell like this would be a bit much.
However this is just my opinion as someone who as always played this game in a relaxed snail pace.
 
The way you looked at this systematically and thoroughly was very interesting, I liked it. Everyone has some great responses too.

I feel like I’m a bit of both - I think Speed Gro should have continuous effect on growth and ripening - my logic is that it would still be present in the soil to work, regardless of where the plant is at in its lifecycle. Possibly present in smaller amounts as the growing season/s progresses.

On the other hand I also think to avoid the mechanic becoming overpowered that continuous effect should only apply if the crop is grown outside. Or only initial growth is affected inside. That way, the benefit ceases in line with the end of crop’s growing season/s - no endless benefit due to the crop being grown in a greenhouse.
 

OK_123

Greenhorn
Have to agree with this. The speed-gro should only affect the initial growth otherwise it becomes overpowered. Plus the comparison between the retaining soil and the speed-gro is not great since one is a life improvement just allowing you to either not water or more efficiently use space belonging to sprinklers (depending on the retaining soil). While the speed-gro is to help cram another harvest in that season. If the speed-gro affected the ripening it would lead to way more harvest crammed into a season. Which sounds great, but I feel like it would just reinforce the idea of speeding through the gameplay instead of being more relaxed and taking your time. After all the game already has many ways to farm money fast, so I fell like this would be a bit much.
However this is just my opinion as someone who as always played this game in a relaxed snail pace.
I don't think it's fair for the regrowth cycle to be completely unaffected — my points above explain why. Deluxe Fertilizer works equally on both single-harvest and multi-harvest crops, but Speed-Gro does not. This is clearly unreasonable.If you're worried about balance, though, I'd say scaling the effect down beats removing it altogether. Options B and C feel like the right trade-off, and I'd love to see either one explored over the current "zero effect" state.
 
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OK_123

Greenhorn
To me it is not the best option, it is overpowered. Speed-Gro is not expensive, put an ancient fruit (or any other regrowing and expensive fruit/berry) into a greenhouse, apply speed-gro and you get endless extra production for nothing (in the long run the price of speed-gro in this case is zero). I would vote for 4th option: "Speed-Gro is to speed up growth, not to speed up ripening, so it shouldn't affect fruit regrowth"

Edit: reword some sentences
Fair concern, my answer is to reduce the effect, not remove it.For me, the best option is still full inheritance. Deluxe Fertilizer and Speed-Gro both improve income, but one works on multi-harvest crops and the other doesn't. That's clearly unfair.

Right now, a new player reads "stimulates growth," fertilizes their ancient fruit or cranberries, and discovers after the first harvest that the fertilizer does nothing for the rest of the season — with no tooltip warning. That feels misleading, not balanced.

Deluxe Fertilizer works the same on multi-harvest and single-harvest crops — on Ginger Island, one application gives you permanent quality returns. By comparison, Speed-Gro's regrowth mechanic is even more unreasonable.


There are middle grounds. Option B (half percentage) or Option C (flat −10%) still require fertilizer and farmland investment, still respect the strength cap, and at least make Speed-Gro meaningful on multi-harvest crops.

In real life,plants like tomatoes and peppers keep producing after each harvest, and growers use growth regulators all season — a hormone doesn't stop working after the first pick. That would make Stardew feel more true to life.

So if 35% is too strong, fine — but let's try B or C before accepting zero effect.
 
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philodygmn

Sodbuster
While I can appreciate dissatisfaction with the uselessness of Speed-Gro past 1st harvest, I think the better answer than adding that to its effects is instead to introduce a new, strictly supplemental amendment so that the cost to the player is higher than simply one-and-done for infinite benefit. There would be 2 tiers: 1 that affects just a single regrowth, and another than affects indefinite ones that is more costly. Having these 2 options would free dedicated players from being forced to reapply a zillion times per season or constantly in a greenhouse, while offering the benefit short-term for more casual players who could still leverage it for Prize Ticket missions or other 1-off situations like if they forget a harvest or run out of time on the day from dying in the mines or something.
 

OK_123

Greenhorn
While I can appreciate dissatisfaction with the uselessness of Speed-Gro past 1st harvest, I think the better answer than adding that to its effects is instead to introduce a new, strictly supplemental amendment so that the cost to the player is higher than simply one-and-done for infinite benefit. There would be 2 tiers: 1 that affects just a single regrowth, and another than affects indefinite ones that is more costly. Having these 2 options would free dedicated players from being forced to reapply a zillion times per season or constantly in a greenhouse, while offering the benefit short-term for more casual players who could still leverage it for Prize Ticket missions or other 1-off situations like if they forget a harvest or run out of time on the day from dying in the mines or something.
Hyper Speed-Gro is already hard to get; we shouldn't need another version to fix it. Retaining Soil and Deluxe Fertilizer both last forever on Ginger Island and apply equally to all crops — Deluxe Fertilizer even gives a permanent quality boost. Yet Speed-Gro is the only one that helps just single-harvest crops and does almost nothing for multi-harvest ones. I think that's a major flaw.
 

philodygmn

Sodbuster
Hyper Speed-Gro is already hard to get; we shouldn't need another version to fix it. Retaining Soil and Deluxe Fertilizer both last forever on Ginger Island and apply equally to all crops — Deluxe Fertilizer even gives a permanent quality boost. Yet Speed-Gro is the only one that helps just single-harvest crops and does almost nothing for multi-harvest ones. I think that's a major flaw.
Assessing purely by initial conditions ignores the specifics of game-balance resultant from each case, though I of course respect your right to your point-of-view: it is because Ginger Island’s sand defies sprinklers that Deluxe Retaining Soil was introduced; Deluxe Fertilizer lasts infinitely on Ginger Island only because it has no seasons. Hyper Speed-Gro is deliberately beyond-reach at-scale, so supplemental’s added burden is constrained by Hyper’s underlying scarcity, and would expand Deluxe Speed-Gro’s utility as well.
 

OK_123

Greenhorn
Assessing purely by initial conditions ignores the specifics of game-balance resultant from each case, though I of course respect your right to your point-of-view: it is because Ginger Island’s sand defies sprinklers that Deluxe Retaining Soil was introduced; Deluxe Fertilizer lasts infinitely on Ginger Island only because it has no seasons. Hyper Speed-Gro is deliberately beyond-reach at-scale, so supplemental’s added burden is constrained by Hyper’s underlying scarcity, and would expand Deluxe Speed-Gro’s utility as well.
I think we should correct something: Ginger Island isn't the Beach Farm — sprinklers work just fine. So the "Deluxe Retaining Soil as sprinkler replacement" argument doesn't hold. Since Retaining Soil, Speed-Gro, and Fertilizer all vanish at season change, not just Fertilizer.so that on Ginger Island they all stay permanently — that's fair. Only Speed-Gro ends up with the special flaw
 

philodygmn

Sodbuster
I think we should correct something: Ginger Island isn't the Beach Farm — sprinklers work just fine. So the "Deluxe Retaining Soil as sprinkler replacement" argument doesn't hold. Since Retaining Soil, Speed-Gro, and Fertilizer all vanish at season change, not just Fertilizer.so that on Ginger Island they all stay permanently — that's fair. Only Speed-Gro ends up with the special flaw
Vanilla Stardew‘s Ginger Island soil defies sprinklers, is this not correct? This was the case when Ginger Island debuted, and is why I characterized Deluxe Retaining Soil, which also debuted with it, as being meant to address that. Perhaps Ginger Island’s soil has since been changed in subsequent updates to allow for sprinklers to work? I have a lot of time in this game but am not necessarily up on every wrinkle of its history.
 

OK_123

Greenhorn
Vanilla Stardew‘s Ginger Island soil defies sprinklers, is this not correct? This was the case when Ginger Island debuted, and is why I characterized Deluxe Retaining Soil, which also debuted with it, as being meant to address that. Perhaps Ginger Island’s soil has since been changed in subsequent updates to allow for sprinklers to work? I have a lot of time in this game but am not necessarily up on every wrinkle of its history.
The Ginger Island farm is a new overseas farm, separate from the Pelican Town farm. In the same save file, you can grow crops on both the Pelican Town farm and the Ginger Island farm at the same time.The Ginger Island farm is basically greenhouse soil: you can put down sprinklers, fertilizer never expires, and crops can grow in any season. Plus it has over 800 tillable tiles, way more than the greenhouse. And since it's unlocked so late,(The Ginger Island farm is only unlocked after the player has reached max level in all five skills, by going behind the fish shop to unlock it.) it has the best farming conditions in the game. That's exactly why it's so strange that Speed-Gro, of all things, has this major flaw.
 
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Ereo

Helper
Vanilla Stardew‘s Ginger Island soil defies sprinklers, is this not correct? This was the case when Ginger Island debuted, and is why I characterized Deluxe Retaining Soil, which also debuted with it, as being meant to address that. Perhaps Ginger Island’s soil has since been changed in subsequent updates to allow for sprinklers to work? I have a lot of time in this game but am not necessarily up on every wrinkle of its history.
no, this was never the case. Ginger island has always been basically a greenhouse.
The beach farm that was introduced in 1.5 is the only place where sprinklers didn’t work, and probably why the deluxe retaining soil was added.
 
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