Deluxe Speed-Gro: Difference between revisions

Latest revision as of 12:30, 18 February 2026

Deluxe Speed-Gro

Stimulates leaf production. Guaranteed to increase growth rate by at least 25%. Mix into tilled soil.
Information
Source	Pierre's in Year 2+ • Oasis on Thursdays • Crafting • Bone Mill • Desert Festival
Sell Price	data-sort-value="40">40g
Recipe
Recipe Source(s)	Farming Level 8
Ingredients	Oak Resin (1) Bone Fragment (5)
Produces	5 Deluxe Speed-Gro per craft

{{#seo:

|keywords=Stardew Valley Wiki, Stardew Valley, Deluxe Speed-Gro, gift |site_name=Stardew Valley Wiki |type=article |title=Deluxe Speed-Gro - Stardew Valley Wiki }} Deluxe Speed-Gro is a Fertilizer that speeds crop growth by 25% (or a total of 35% with the Agriculturist Profession).^[1] It can be crafted or purchased from Pierre's General Store for data-sort-value="150">150g from Year 2 onward, or purchased from the Oasis for data-sort-value="80">80g on Thursdays. Ten Deluxe Speed-Gro may also be received as a gift at the Feast of the Winter Star. Up to 100 Deluxe Speed-Gro may be purchased from Demetrius' shop at the Desert Festival for data-sort-value="2"> 2 Calico Eggs each. Ten to twenty Deluxe Speed-Gro may be received from opening a Mystery Box or Golden Mystery Box.

Deluxe Speed-Gro can be placed on tilled soil before or after planting a seed, or at any stage of crop growth. It does not reduce time between harvests for multi-harvest crops.

Applying Deluxe Speed-Gro days after planting a seed still decreases the time it takes to fully grow, but it reduces a fixed amount of days per stage for each crop regardless of the day it's applied, and the reduction in stages that the crop has already passed will not retroactively apply. Combined with the fact that the reduction disproportionately affects earlier stages more, this means that its reduction to the rest of the growth time is much lower than the advertised percentage of 25%.^[2]

Gifting

Villager Reactions
Dislike	Abigail • Alex • Caroline • Clint • Demetrius • Dwarf • Elliott • Emily • Evelyn • George • Gus • Haley • Harvey • Jas • Jodi • Kent • Krobus • Leah • Leo • Lewis • Linus • Marnie • Maru • Pam • Penny • Pierre • Robin • Sam • Sandy • Sebastian • Shane • Vincent • Willy • Wizard

Bundles

Deluxe Speed-Gro is not used in any bundles.

Tailoring

Deluxe Speed-Gro can be used in the spool of the Sewing Machine to create the dyeable High-Waisted Shirt. It can be used in dyeing, serving as an orange dye at the dye pots, located in Emily's and Haley's house, 2 Willow Lane.

Quests

Deluxe Speed-Gro is not used in any quests.

References

↑ See StardewValley.TerrainFeatures.HoeDirt::applySpeedIncreases in the game code.
↑ The change in phaseDays in HoeDirt::applySpeedIncreases is static regardless of the date of fertilizer application relative to the date of planting. This means that applying fertilizer after planting only affects the current stage and any stages thereafter, in the same way that applying at the same day as planting affects those stages.

History

1.4: Deluxe Speed-Gro now has an effect if used after planting a seed. Can now be used in Tailoring.
1.6: Now requires 5 Bone Fragments instead of 1 Coral to craft. Now sold by Demetrius during the Desert Festival. Added as possible prize from Mystery Boxes and Golden Mystery Boxes.

Equipment
Artisan		Bee House • Cask • Cheese Press • Dehydrator • Fish Smoker • Keg • Loom • Mayonnaise Machine • Oil Maker • Preserves Jar
Refining		Bait Maker • Bone Mill • Charcoal Kiln • Crystalarium • Deluxe Worm Bin • Furnace • Geode Crusher • Heavy Furnace • Heavy Tapper • Lightning Rod • Mushroom Log • Ostrich Incubator • Recycling Machine • Seed Maker • Slime Egg-Press • Slime Incubator • Solar Panel • Tapper • Wood Chipper • Worm Bin
Farming	Fertilizer	Basic Fertilizer • Basic Retaining Soil • Deluxe Fertilizer • Deluxe Retaining Soil • Deluxe Speed-Gro • Hyper Speed-Gro • Quality Fertilizer • Quality Retaining Soil • Speed-Gro • Tree Fertilizer
	Sprinklers	Iridium Sprinkler • Quality Sprinkler • Sprinkler
	Other	Deluxe Scarecrow • Garden Pot • Rarecrow • Scarecrow
Fishing	Bait	Bait • Challenge Bait • Deluxe Bait • Magic Bait • Magnet • Targeted Bait • Wild Bait
	Tackle	Barbed Hook • Cork Bobber • Curiosity Lure • Dressed Spinner • Lead Bobber • Quality Bobber • Sonar Bobber • Spinner • Trap Bobber • Treasure Hunter
	Other	Crab Pot
Bombs		Bomb • Cherry Bomb • Mega Bomb
Fences		Gate • Hardwood Fence • Iron Fence • Stone Fence • Wood Fence
Storage		Big Chest • Big Stone Chest • Chest • Junimo Chest • Mini-Fridge • Stone Chest
Signs		Dark Sign • Stone Sign • Text Sign • Wood Sign
Misc		Anvil • Coffee Maker • Cookout Kit • Deconstructor • Fairy Dust • Farm Computer • Hopper • Mini-Forge • Mini-Jukebox • Mini-Shipping Bin • Sewing Machine • Staircase • Statue Of Blessings • Statue Of The Dwarf King • Telephone • Tent Kit • Tools • Workbench

[speedincrease-1] See StardewValley.TerrainFeatures.HoeDirt::applySpeedIncreases in the game code.

[speedincrease2-2] The change in phaseDays in HoeDirt::applySpeedIncreases is static regardless of the date of fertilizer application relative to the date of planting. This means that applying fertilizer after planting only affects the current stage and any stages thereafter, in the same way that applying at the same day as planting affects those stages.

[1]

[2]

@@ Line 3: / Line 3: @@
 |image       = Deluxe Speed-Gro.png
 |description = {{Description|Deluxe Speed-Gro}}
-|source      = [[Pierre's General Store|Pierre's]] in year 2+ • [[Oasis]] on Thursdays • [[Crafting]] • [[Bone Mill]]
+|source      = [[Pierre's General Store|Pierre's]] in Year 2+ • [[Oasis]] on Thursdays • [[Crafting]] • [[Bone Mill]] • [[Desert Festival]]
 |sellprice   = 40
 |recipe      = [[File:Farming Skill Icon.png|24px|link=]] [[Farming]] Level 8
-|ingredients = {{name|Oak Resin|1}}{{name|Coral|1}}
+|ingredients = {{Name|Oak Resin|1}}{{Name|Bone Fragment|5}}
 |produces    = 5 Deluxe Speed-Gro per craft
 |qiseasoning = false
 }}</onlyinclude>
-'''Deluxe Speed-Gro''' is a [[Fertilizer]] that speeds [[Crops|crop]] growth by 25% (or a total of 35% with the [[Skills#Farming|Agriculturist Profession]])<ref name="speedincrease" />. It can be [[Crafting|crafted]] or purchased from [[Pierre's General Store]] for {{price|150}} from year 2 onward, or purchased from the [[Oasis]] for {{price|80}} on Thursdays.  Ten Deluxe Speed-Gro may also be received as a gift at the [[Feast of the Winter Star]].
+'''Deluxe Speed-Gro''' is a [[Fertilizer]] that speeds [[Crops|crop]] growth by 25% (or a total of 35% with the [[Skills#Farming|Agriculturist Profession]]).<ref name="speedincrease" /> It can be [[Crafting|crafted]] or purchased from [[Pierre's General Store]] for {{Price|150}} from Year 2 onward, or purchased from the [[Oasis]] for {{Price|80}} on Thursdays. Ten Deluxe Speed-Gro may also be received as a gift at the [[Feast of the Winter Star]]. Up to 100 Deluxe Speed-Gro may be purchased from [[Demetrius]]' [[Desert Festival#Villager Shops|shop]] at the [[Desert Festival]] for {{Price|2|Calico}} [[Calico Egg]]s each. Ten to twenty Deluxe Speed-Gro may be received from opening a [[Mystery Box]] or [[Golden Mystery Box]].
 Deluxe Speed-Gro can be placed on tilled soil ''before or after'' planting a seed, or at any stage of crop growth. It does not reduce time between harvests for multi-harvest crops.
-==Deluxe Speed-Gro Cost==
+Applying Deluxe Speed-Gro days after planting a seed still decreases the time it takes to fully grow, but it reduces a fixed amount of days per stage for each crop regardless of the day it's applied, and the reduction in stages that the crop has already passed will not retroactively apply. Combined with the fact that the reduction disproportionately affects earlier stages more, this means that its reduction to the rest of the growth time is much lower than the advertised percentage of 25%.<ref name="speedincrease2" />
-Crafting Deluxe Speed-Gro is always cheaper than purchasing it.  The table below compares the cost of crafting 5 Deluxe Speed-Gro against purchasing the same amount at the [[Oasis]] or [[Pierre's General Store|Pierre's]]. The cost of crafting is the sell price of the constituent ingredients.
-{{#lst:Fertilizer|deluxespeedgrocost}}
-However, the supply of [[Coral]] is limited, so the player can only acquire unbounded amounts of fertilizer by purchasing. Nonetheless, it is readily possible to achieve a profit even by purchasing Deluxe Speed-Gro.
-For example, in the scenario of growing [[Starfruit]] in the [[Greenhouse]] for wine, the amount of additional starfruit produced in the limited growing area can be increased by ~45% using Deluxe speed grow. Assuming unlimited availability of [[Keg|Kegs]] for this calculation, each Deluxe Speed-Gro used results in 2250*0.45=~1012g of additional revenue and if considering [[Starfruit_Seeds|Seed]] costs, then the final additional revenue would be (2250-400)*0.45=~832g (or +1237g with the [[Artisan]] skill). Given the price of 80g to purchase in the [[Oasis]], the resulting profit is 1237-80 = 1157g per Deluxe Speed-Gro used.
 ==Gifting==
@@ Line 39: / Line 33: @@
 <references>
 <ref name="speedincrease">See <samp>StardewValley.TerrainFeatures.HoeDirt::applySpeedIncreases</samp> in the game code.</ref>
+<ref name="speedincrease2">The change in phaseDays in <samp>HoeDirt::applySpeedIncreases</samp> is static regardless of the date of fertilizer application relative to the date of planting. This means that applying fertilizer after planting only affects the current stage and any stages thereafter, in the same way that applying at the same day as planting affects those stages.</ref>
 </references>
 ==History==
-{{History|1.4|Deluxe Speed-Gro now has an effect if used after planting a seed.  Can now be used in [[Tailoring]].}}
+{{History|1.4|Deluxe Speed-Gro now has an effect if used after planting a seed. Can now be used in [[Tailoring]].}}
+{{History|1.6|Now requires 5 [[Bone Fragment]]s instead of 1 [[Coral]] to craft. Now sold by [[Demetrius]] during the [[Desert Festival]]. Added as possible prize from [[Mystery Box]]es and [[Golden Mystery Box]]es.}}
 {{NavboxEquipment}}