What is Obsidian Olive?

Obsidian Olive is a epic, overnight-cadence permanent seed in the fruit family. One owned copy supports one simultaneous planting. Harvesting returns that copy to availability; it does not consume the seed.

PropertyValue
RarityEpic
Acquisition300,000 Farm Coins
Base growing time8h
Base HP per produce3,960
Base HP/hour per plot495
Weather affinityHeat Wave (+20%)
Generation1
Seed level cap10
Mastery cap20
SeasonNot restricted to a named Harvest Pass

Planting and harvesting explains available seed copies, timers and freshness. Seed upgrades and Crop Mastery are separate systems.

Where to get it

Buy additional copies in the Farm Coin Shop. Find Obsidian Olive in the seed list (use its name or rarity filter), then choose Buy copy and confirm. One permanent copy costs 300,000 Farm Coins. Buying a copy is different from paying to upgrade its level.

Also included in these CXL bundles: Epic Seed Collection. Check the bundle’s live eligibility and contents before paying; a bundle is not an additional free reward.

Once acquired, look for this seed on Seeds or in an empty plot’s planting menu. If all copies are planted, wait for a harvest or obtain another copy; produce in the Barn is not a seed copy. All item sources explains the different shops and reward routes.

Seed levels and exact upgrade prices

“Cost to reach” is the one-step purchase from the preceding level; Level 1 is the starting state. Cumulative cost excludes buying the seed. HP/hour assumes instant replanting, one produce per harvest, no mastery, no matching weather, and no building or companion effects. The farm-level requirement applies to purchasing that level.

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All ten Obsidian Olive seed levels
LevelCost to reach (coins)Cumulative coinsHP eachGrowing timeHP/hourFarm level required
1003,9608h4951
25,0005,0004,1977h 50m 24s535.33161
37,00012,0004,4357h 40m 48s577.4742
49,80021,8004,6727h 31m 12s621.27663
513,72035,5204,9107h 21m 36s667.11964
619,21054,7305,1487h 12m7155
726,90081,6305,3857h 2m 24s764.91486
837,650119,2805,6236h 52m 48s817.29657
952,710171,9905,8606h 43m 12s872.02388
1073,790245,7806,0986h 33m 36s929.57329

Mastery requirements and points

These are raw harvest-equivalent requirements without Greenhouse, Supplier or companion progress. Mastery adds points from the seed’s original base HP, not from the upgraded level value. The percentage column describes that original base; integer rounding can make the exact points slightly higher.

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Mastery thresholds for Obsidian Olive
Mastery levelAdditional progressTotal progressAdded HP eachBase-point bonus
00000%
133802%
2581594%
37152386%
410253178%
5154039610%
6236347612%
7349755514%
85114863416%
97722571318%
1011534079220%
1117351387222%
1225977295124%
133891,1611,03026%
145841,7451,10928%
158762,6211,18830%
161,3143,9351,26832%
171,9715,9061,34734%
182,9568,8621,42636%
194,43413,2961,50538%
206,65119,9471,58440%

A clearly defined maximum-seed example

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ScenarioHP eachTimeHP/hour
Level 10, Mastery 20, matching weather; no buildings/companions, Level 1 plot9,2186h 33m 36s1,405.1829

This is not the maximum possible farm output. Plot yield, pond reductions, Windmill strength, active companions, late harvesting, fertilizer and downtime change actual results. Harvest Point calculations explains the rounding and order of operations.

Common questions

Why is inventory worth less than the seed card? An older crop retains its planting-time stats and can lose value if harvested after its Perfect Harvest window. Inventory shows its recorded HP per item. A new seed upgrade does not retroactively alter an already growing crop.

Does a higher-yield plot give extra seed copies? No. It gives extra produce. One crop harvest still advances base mastery once, regardless of how many produce items it yields.