Grow a Garden Harvest Moon Reward Track Part 4: All 20 Stages, Point Costs & the Real Cornling, Maize Stalk & Eclipse Berry Grind Math (August 22, 2026)

Last Verified: August 21, 2026. Every stage number, cumulative point cost, reward, quest reset window, quest-skip cost, event start and end date below is pulled directly from the official Grow a Garden Fandom wiki this morning via the MediaWiki API — specifically the Harvest Moon Event page (Reward Track table, Quest tabs, skip prices), the Cornling page (Stage 12 obtainment), the Maize Stalk page (Mythical, multi-harvest, Stage 13), and the Eclipse Berry page (Prismatic, multi-harvest, Stage 20). Every “TBA” call-out is a literal TBA on the wiki — nothing invented. Active GAG codes re-verified against the Codes page this morning and unchanged: torigate, BEANORLEAVE10, RDCAward. LUNARGLOW10 remains Expired.

The wiki filled in the Part 4 Reward Track late last night, and the three chase rewards land on very different curves. Cornling is at Stage 12 for 12 cumulative points — the Legendary sits on the same 1-point-per-stage pace as the first 11 rewards, so it is genuinely reachable. Maize Stalk Seed at Stage 13 costs 14 points, because the point step doubles the moment you clear Cornling. Eclipse Berry Seed — the Prismatic — sits at Stage 20 behind a wall of 31 cumulative points, roughly two and a half times the Cornling grind.

With Harvest Moon ending August 29 and Part 4 dropping August 22, that is a 7-day window. At 3 quests per 8-hour reset — 9 quest-points per day if you play the reset perfectly — the math on all three rewards works out very differently than a quick glance at the stage numbers suggests. Here is the full table, the actual quest pool the wiki confirms, and what tonight looks like if the Prismatic is the one you want.

TL;DR — The Only Numbers That Matter

• Part 4 goes live: August 22, 2026. The Harvest Moon Event closes on August 29 — that is a hard 7-day window for the entire Reward Track.
• Cornling (Legendary pet): Stage 12, 12 cumulative points. Passive is Corn Synergy — occasionally moves all mutations from one fruit to another, with a chance the original fruit keeps the mutation scaling per Corn planted.
• Maize Stalk Seed (Mythical crop): Stage 13, 14 cumulative points. Multi-harvest confirmed. Every other stat is still TBA on the wiki.
• Eclipse Berry Seed (Prismatic crop): Stage 20, 31 cumulative points. Multi-harvest confirmed. Every other stat is still TBA.
• Quest cadence: 3 quests active at any time, resetting every 8 hours. Each quest awards 1 point. Perfect play = 9 points per day.
• Skip cost: 89 Robux per skipped quest. Full track restart costs 149 Robux or 10,000,000,000 Sheckles.
• Realistic grind, perfect play: Cornling in ~32 hours, Maize Stalk in ~37 hours, Eclipse Berry in ~82 hours (3.5 days).

The Full Reward Track: Stages 1 Through 20

The wiki confirms every reward. The column that matters is Required Points — that is cumulative points needed to unlock the stage, not per-stage cost. The pace holds at exactly 1 point per stage through Cornling, then jumps to 2 points per stage, then jumps again to 3 points per stage for the last three.

Read that pacing carefully. The last eight stages combined cost 19 points — more than the first twelve combined (12 points). That is where the grind actually lives. Anyone who assumes Eclipse Berry is only 8 more stages of the same effort is going to lose four days before they realize they are behind.

Cornling at Stage 12: 32 Hours If You Never Miss a Reset

Cornling is the one everyone will get. Twelve points on a 9-per-day cadence is 1.33 days — roughly 32 hours from the moment Part 4 opens. If the update goes live at reset on Friday morning, Cornling is on your farm sometime Saturday afternoon.

Corn Synergy is the reason to actually play instead of AFK-ing. The passive occasionally transfers every mutation from one fruit onto an un-mutated fruit, with a per-Corn scaling chance the original fruit keeps the mutation. That is the first pet in Grow a Garden that literally launders mutations between plants, and the pairing with the existing 15x Moonbeam mutation from the main Harvest Moon activation is the real payoff — you can stack a Moonbeam onto whatever your highest-sell-value fruit is on the plot at the time. Our mutation multiplier reference is the fastest place to check what a Moonbeam swap is actually worth in Sheckles for a given crop.

Realistic Cornling grind if you check in every 8 hours: Friday 8am reset kick-off, Friday 4pm reset, Friday midnight reset, Saturday 8am reset — four resets, twelve quests, Cornling by Saturday afternoon. Miss the midnight reset and you push into Saturday night. Miss two resets and you are looking at Sunday.

Maize Stalk at Stage 13: Why the Two-Point Step Matters

Stage 13 does not cost 13 points. It costs 14 — the first two-point step in the whole track. That is the wiki table talking, and it is the moment the pacing changes.

Practically, Maize Stalk is close to a freebie for anyone banking Cornling: 2 more points is one more reset window, so you tack Maize Stalk onto Saturday night. What is not clear yet is whether Maize Stalk is worth planting first. The wiki has confirmed Mythical rarity and multi-harvest — nothing else. No Sheckle sell value, no growth time, no size range, no mutation slot count. Every other stat is TBA on the crop page as of this morning.

The thematic tell is that Maize is the botanical name for Corn, and it drops one stage after Cornling. Whether that translates into a mechanical Corn Synergy interaction or is just a name is not on the wiki yet. Do not assume; wait for the datamine and the first in-game Sheckle price.

Eclipse Berry at Stage 20: 82 Hours for the Prismatic

Eclipse Berry is the one that will separate serious players from casual players in this event. Prismatic is the top rarity tier in Grow a Garden, and the wiki confirms Stage 20 sits behind 31 cumulative points.

Perfect play — every 8-hour reset hit, every quest completed — puts Eclipse Berry at 82.7 hours, or 3.44 days. Kick-off Friday morning, Prismatic on your farm sometime Monday night. That is fine on paper. In practice, almost nobody plays a perfect 8-hour reset cadence, because one reset always lands during sleep and another lands during work or school. Realistic cadence for someone with a normal life: 2 resets per day, 6 points per day, Eclipse Berry in 5.2 days — Wednesday or Thursday night.

That is still inside the August 29 event close, but it leaves almost no margin. Miss a full day and Eclipse Berry starts slipping into the Robux zone: 89 per skipped quest, and you would be paying to make up 3 quests per missed reset. Miss two days and the honest choice is either 500-plus Robux in skips or dropping the Prismatic chase entirely.

Speaking as someone with thousands of hours in Grow a Garden, event-finale Prismatics almost never come back. Once Harvest Moon closes, the seed is gated behind whatever recycled RNG mechanic the next event ships, and the price on Eclipse Berry produce in the trade market is going to move accordingly. If you want it, the honest advice is to plan around the Sunday reset window before deciding whether the chase is on.

How the Quest Pool Actually Works

The wiki confirms three simultaneous quests, three tiers of difficulty (Easy, Medium, Hard), and a hard 8-hour reset. Each completed quest awards 1 point regardless of tier — a Hard quest is not worth more than an Easy quest on the Reward Track ledger. The only thing tier changes is how much in-game effort the quest asks for.

• Easy tier examples from the wiki: submit 5 plants to the Harvest Moon Pedestal, activate the Harvest Moon 1 time, hatch 1 Moon Egg, harvest 10 Apples, harvest 3 Strange Man's Wheat.
• Medium tier examples: submit 10 plants, activate Harvest Moon 2 times, sell 50 Moonbeam Plants, hatch 4 Moon Eggs, harvest 20 Starry Strawberries.
• Hard tier examples: 100 Moonbeam plants sold, 8 Moon Chests opened, 60 Corn harvested, 12 Watermelons harvested, craft a Harvest Golem.

The mix you get is not tier-selected — the wiki does not confirm a Hard-quest guarantee or ratio. In practice through Parts 1 through 3, players saw the three-quest window contain a spread across all three tiers. Skip cost is 89 Robux per quest; the button rerolls whichever quest you skip, so it functions as a way to dodge a specific Hard quest you know you cannot finish before the reset.

The one non-obvious lever: the reset window is 8 hours from the moment you accept the batch, not a fixed clock. If you turn in your third quest at hour 7 of the window, the next batch does not appear until hour 15. Space your completions if you want the tightest possible reset cadence.

The Thursday Night Priority List

You cannot pre-farm the Reward Track — Part 4 quests do not exist until Friday. What you can do tonight is set up so the first three quests are effectively free the moment they appear.

1. Bank a stack of Moonbeam-eligible plants ready to submit. Strawberry, Blueberry, Tomato, Corn, Watermelon, Apple, Pumpkin, Bamboo, Coconut, Cactus, Dragon Fruit, and Mango are the confirmed Harvest Moon plant pool per the event page. “Submit N plants to the Pedestal” is one of the most common Easy quests through Parts 1-3, and having 15 plants queued means one submission finishes the quest instead of waiting for growth.
2. Save at least one Moon Egg unhatched. “Hatch 1 Moon Egg” and “Hatch 4 Moon Eggs” are both in the quest pool. Having eggs sitting in inventory turns a hatch quest into a two-second complete instead of a Moon Coin farming session.
3. Have Corn in the ground. Whether Maize Stalk turns out to pair mechanically with Cornling or not, Corn Synergy scales the mutation-preservation chance per Corn planted. Corn is a Rare Seed Shop entry with a 16% stock chance at 1,300 Sheckles per seed. Get a plot of it planted tonight so it is producing the moment Cornling drops.
4. Have a Wheat Crow crafted or in progress. The Wheat Crow requires 4 Harvest Moon activations to unlock; if you have not built one yet from Parts 1-3, tonight is the last quiet stretch before the Reward Track eats your play time.
5. Redeem the three active codes if you have not already. torigate, BEANORLEAVE10, and RDCAward are all cosmetics, so no gameplay boost — the point is that redeeming them is a two-minute task tonight and unavailable later.

If you are new to Harvest Moon and want to catch up on Parts 1 through 3 first, the original Harvest Moon event guide covers Moonbeam, the Moon Reward Track quest system, and the Moongrain Meadow rotation. The Part 4 preview from Wednesday has the wiki-cited pet and crop stats going in.

What the Wiki Still Leaves as TBA

Honest inventory of what nobody knows yet, so you do not get sold a fabrication on another site:

• Maize Stalk sell value, growth time, size range, mutation slot count. Every stat below Mythical rarity and multi-harvest is TBA.
• Eclipse Berry sell value, growth time, size range, mutation slot count. Every stat below Prismatic rarity and multi-harvest is TBA.
• Cornling appearance, gallery images, exact Corn Synergy proc rate, exact per-Corn mutation-retain chance. The passive text is confirmed; the numbers behind it are not.
• The next event after Harvest Moon. The event infobox lists next_event as “To be determined,” so anyone claiming to know what replaces Harvest Moon on August 29 is guessing.

These are all live wiki TBAs as of this morning. If any of them fill in before Friday morning, this post gets a follow-up rather than a silent edit — that is the standing rule on this site.

Sources

• Harvest Moon Event page — Reward Track table (stages 1-20, rewards, cumulative point costs), Quest tabs (Easy, Medium, Hard tier examples), 8-hour reset window, 89 Robux skip cost, 149 Robux / 10,000,000,000 Sheckle restart cost, August 1 start and August 29 end dates, next_event = To be determined.
• Cornling page — Legendary tier, 25,000 hunger, Corn Synergy passive text, Stage 12 obtainment, August 22 date added, Unreleased flag.
• Maize Stalk page — Mythical tier, multi-harvest, Stage 13 obtainment, August 22 date added, Unreleased flag, all other stats TBA.
• Eclipse Berry page — Prismatic tier, multi-harvest, Stage 20 obtainment, August 22 date added, Unreleased flag, all other stats TBA.
• Crop Mutations page — Moonbeam 15x row, used to anchor the Corn Synergy value discussion.
• Corn page — Rare tier, 16% Seed Shop stock chance, 1,300 Sheckle / 135 Robux / 135 Trade Token seed price, multi-harvest, used to anchor the “plant Corn tonight” step.
• Codes page — torigate, BEANORLEAVE10, RDCAward Active on August 21; LUNARGLOW10 Expired.

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