Gloomshroom Guide — Grow a Garden Value, Mutations & Farming Strategy

The Gloomshroom is a Legendary-rarity crop in the Roblox game Grow a Garden with a base Sheckle value of 38,000 Sheckles per kilogram. It supports high-tier mutations including Abyssal (240×), Celestial (120×), and Shocked (100×), making it one of the most profitable Legendary crops when correctly mutated. This guide covers exact values, best mutations, farming strategy, and trading tips — updated after every Saturday patch.

All values sourced from direct in-game testing and updated after every Saturday game patch. Last Updated: 2026-03-11. Mutations range from Gold (25×) through Abyssal (240×).

What Is the Gloomshroom in Grow a Garden?

The Gloomshroom is a dark-themed, Legendary-rarity crop entity in the Roblox game Grow a Garden — distinct from the Glowshroom and unrelated to any real-world mushroom species. In the game's rarity classification system, Legendary sits as the 5th tier, ranking above Epic and below Mythical. Legendary crops carry significantly higher base Sheckle values and seed costs than Common, Uncommon, Rare, or Epic crops, making them the entry point for serious Grow a Garden farming.

The Gloomshroom's dark aesthetic pairs with a Dark Soil preference, which players should use for optimal growth speed. With a 56-minute growth cycle, it yields approximately 40,714 Sheckles per hour at base value — and exponentially more once high-tier mutations like Abyssal or Celestial are applied.

Gloomshroom — Complete Data Reference Table

Best Gloomshroom Mutations in Grow a Garden

The best mutations for Gloomshroom in Grow a Garden are Abyssal (240×), Voidtouched (135×), Celestial (120×), and Shocked (100×). All mutations apply multiplicatively — not additively — meaning the combined mutation multiplier for stacked mutations is the product of all individual multipliers, not their sum.

The optimal three-mutation stack for Gloomshroom is Abyssal × Celestial × Shocked, producing a combined multiplier of 2,880,000× (240 × 120 × 100). Applied to the Gloomshroom's 38,000 Sheckles/kg base value, this stack yields 109,440,000,000 Sheckles per kilogram — making mutation strategy the single most impactful farming decision for Legendary crops. Use the Grow a Garden Mutation Calculator to model your exact Gloomshroom stack value.

For custom stacking calculations, use the Mutation Calculator or visit the Mutation Stacking Guide for full stacking mechanics. See the Mutation Tier List for rankings across all 151 mutations.

How to Get Gloomshroom in Grow a Garden

Gloomshroom seeds can be obtained through two main routes in Grow a Garden: the permanent Legendary-tier seed shop and limited-time event drops. Because Gloomshroom is a non-seasonal crop, the seed shop route is always available, making it one of the most accessible Legendary crops to acquire compared to event-exclusive Legendary rarities.

Seed Shop Availability

Gloomshroom seeds are available year-round from the Legendary Seed Shop for 49,400 Sheckles per seed. Because Legendary seeds are expensive, players typically focus on accumulating Sheckle reserves by farming lower-rarity crops first, then reinvesting into Legendary seeds for higher ROI. Check the stats table above after every Saturday patch — seed costs may be updated.

Event Availability

During mushroom-themed or dark-aesthetic seasonal events — including Halloween and similar spooky-season events in Grow a Garden — Gloomshroom seeds may drop at a reduced cost or as free event rewards. Traffic data suggests +150–300% traffic spikes during these periods, confirming player interest spikes. Monitor the All Crops Value List and the Farming Strategy Guide for event timing updates.

How to Farm Gloomshroom in Grow a Garden

Gloomshroom is a year-round Legendary crop — always available from the seed shop, never event-gated. This means farming Gloomshroom for consistent Sheckle income is achievable any time, and planning your farming rotation around it is straightforward. The five-step process below maximises Sheckle yield per hour for both active and AFK farming styles.

1. 🌱

   Step 1: Obtain Gloomshroom Seeds

   Purchase Gloomshroom seeds from the Legendary-tier seed shop for 49,400 Sheckles per seed. Legendary seeds may occasionally drop from limited-time events at a reduced cost or as free rewards. Always verify the current seed price in the stats table above after each Saturday patch, as seed costs can change with weekly game updates.

2. 🌍

   Step 2: Select Optimal Soil — Dark Soil

   Plant Gloomshroom in Dark Soil for the fastest possible growth cycle. Using the correct soil type is a commonly overlooked farming optimisation — incorrect soil adds time to every 56-minute cycle, reducing your Sheckles-per-hour rate. See the Soil Types Guide at GAGdata.com for a full breakdown of which soils pair with which crop types.

3. 🐾

   Step 3: Activate Mutation-Boosting Pets

   Equip pets with mutation-probability ability bonuses before planting each Gloomshroom crop. High-tier mutations like Abyssal (240×) and Celestial (120×) apply randomly at harvest time — pets with mutation-boosting passives increase your chance of landing rare mutations. Growth-speed pet abilities additionally reduce the 56-minute growth cycle, improving harvest frequency.

4. ⚖️

   Step 4: Harvest at Peak Weight

   Wait until your Gloomshroom reaches maximum possible weight before harvesting. Since Sheckle value = Base Value (38,000) × Weight × Mutation Multiplier, heavier crops are worth proportionally more even without mutations. Harvesting early sacrifices weight and sacrifices final Sheckle yield. Monitor crop weight in the inventory screen before confirming the harvest.

5. 📊

   Step 5: Calculate Value Before Trading or Selling

   Use the GAGdata.com Crop Value Calculator before trading any mutated Gloomshroom. A Gloomshroom with Abyssal (240×) is worth 9,120,000 Sheckles per kilogram of weight — exact value depends on your harvest weight. Never accept a trade offer without first computing the exact Sheckle value; the Mutation Calculator handles all stacked mutation combinations automatically.

Gloomshroom Sheckles-Per-Hour Analysis

At base value with no mutations, Gloomshroom produces approximately 40,714 Sheckles per hour per plot (calculated as 38,000 ÷ 56 min × 60 = 40,714 Sheckles/hr at 1kg). This positions Gloomshroom competitively within the Legendary tier. The real profitability unlock comes from mutations: a single Abyssal (240×) mutation multiplies the per-hour figure by 240×, making Gloomshroom farming exponentially more valuable than farming lower-rarity crops even with identical mutations.

Gloomshroom Trading Value in Grow a Garden

The Gloomshroom base value in Grow a Garden is 38,000 Sheckles per kilogram without mutations. With a top-tier Abyssal mutation (240×), a Gloomshroom is worth approximately 9,120,000 Sheckles per kilogram. In trading, unmutated Gloomshrooms carry solid Legendary-tier trade value and are frequently sought for crop collection completionists. Always use the Grow a Garden Crop Value Calculator at GAGdata.com for the most current, patch-accurate values before finalising any trade.

GAGdata.com uses the Win/Fair/Loss (W/F/L) system to evaluate trade fairness: Win means you receive ≥10% more Sheckle value than you give; Fair means both sides are within 10%; Loss means you receive ≥10% less. Mutated Gloomshrooms — especially with Abyssal, Celestial, or Shocked — command substantial trade premiums. Use the Trade Calculator to verify any Gloomshroom trade offer before accepting. For detailed trading strategy, visit the Trading Guide.

Related Mushroom-Family Crops in Grow a Garden

The Gloomshroom belongs to the dark-theme crop family within Grow a Garden's Legendary tier. Two other mushroom-family crops are relevant for topical context:

For the complete Legendary crop tier reference, visit the Legendary Crops Guide. For all crops across all rarity tiers, see the All Crops Value List.

Gloomshroom Grow a Garden — Frequently Asked Questions

Related Grow a Garden Resources

About the Data & Update Policy

All Gloomshroom values on this page are sourced directly from in-game testing by Sam Rivers, GAGdata.com's Crops & Values Database Manager. Data is verified through direct gameplay sessions and cross-checked against the community after each Saturday game patch. Values in the stats table, mutation table, and Sheckles-per-hour calculation are updated within 24 hours of every Grow a Garden patch release.

If you notice a value discrepancy between this page and the current in-game Gloomshroom value, the Saturday patch may have changed it since this page was last updated. Use the Mutation Calculator for real-time calculations, or use the All Crops Value List to see the most current patch-accurate values across all 308 crops.