Cosmos: Garden Idle world 7 guide
World 7 of 7
The ultimate garden among planets and stars: star blooms, moon mushrooms, nebula berries, ringed bulbs, comet flowers, orbit trees, galaxy roses and the legendary cosmic heart. Little robots harvest for you there. The final world, and the longest!
The Cosmos is the final and longest world, about three times a normal world. With 25 cosmic hearts you finish Garden Idle and earn the ultimate trophy; you can then keep playing to climb the ranking.
- Position: world 7 of 7
- Unlock: 25 sugar hearts (Candyland)
- Helper:
Little robot - Growth: 54 s to 1 h 48 min
- Scale: prices and earnings ×100al compared with the Garden
- 25 cosmic hearts: ≈ 26.4ap coins
🔓 How to unlock the Cosmos
The Cosmos opens as soon as you own 25 sugar hearts, the last crop of the previous world (Candyland). It happens automatically: a message tells you and the world appears on the map. Be careful: a Great Compost closes every world except the Garden. You then reopen them one by one, in order, by reaching 25 copies of each world's last crop again — much faster thanks to your Golden seeds.
The helper: the little robot
In this world, the little robot harvests for you. Once hired for a row (button next to the crop), it harvests that row as soon as it is ripe, whether you are looking at this world, another one, or the game is closed (offline earnings: half the normal rate, up to 2 h, +1 h per Barn level). Its price is fixed for each row: from 12.0am for the star bloom to 8.00ap for the cosmic heart. Its harvests don't benefit from combos: while you are playing, swiping the rows yourself still pays more.
🌱 The 8 crops
Base values, without tools or Golden seeds. Earn / plant: what one plant yields per harvest (multiplied by the number of plants in the row and doubled at each milestone). 1st plant: the price to unlock the row, then the price increase per plant. Helper: the price to hire the little robot for that row.
| Crop | Growth | Earn / plant | 1st plant | Helper |
|---|---|---|---|---|
 Star bloomprice/plant +19% | 54 s | 100al | 500al | 12.0am |
 Moon mushroomprice/plant +20% | 1 min 48 s | 1.20am | 12.0am | 250am |
 Nebula berryprice/plant +21% | 3 min 36 s | 11.0am | 350am | 4.00an |
 Ringed bulbprice/plant +22% | 7 min 12 s | 100am | 5.00an | 60.0an |
 Comet flowerprice/plant +23% | 14 min 24 s | 900am | 80.0an | 1.00ao |
 Orbit treeprice/plant +24% | 28 min 48 s | 8.00an | 1.00ao | 20.0ao |
 Galaxy roseprice/plant +25% | 54 min | 80.0an | 10.0ao | 400ao |
 Cosmic heartprice/plant +25% | 1 h 48 min | 800an | 25.0ao | 8.00ap |
💡 Strategy
- Pace. Crops grow in 54 s (Star bloom) to 1 h 48 min (Cosmic heart), 18 times slower than in the Garden. Each speed milestone halves that time. Cosmic heart: 54 min at 25 plants, 27 min at 100 and 13 min 30 s at 250. A level 30 Magic watering can divides every growth time by another 4.
- Price growth. Each plant costs 19% (Star bloom row) to 25% (Cosmic heart row) more than the previous one. On the Cosmic heart row, the 50th plant therefore costs 56.1K times the first: get 25 plants on every row first (earnings doubled at 10 and 25, growth twice as fast at 25) before pushing a row towards 50 or 100.
- Where to invest. From one row to the next, a plant earns on average 4.9 times more per second, while the first plant costs about 13 times more. Your newest row therefore almost always makes most of your income: unlock the next crop as soon as you can, then top up older rows to their next milestone, which is cheap there.
- Helpers. Hiring the little robot costs from 12.0am (Star bloom row) to 8.00ap (Cosmic heart row). The first ones are cheap: hire them once a row has about ten plants; they harvest every time the row ripens, even with the game closed. The Cosmic heart helper costs 320 times its first plant: buy your 25 cosmic hearts first, then hire it.
- Goal. To finish the game, you need 25 cosmic hearts: about 26.4ap coins in total for those plants alone, including 5.29ap for the 25th. Reaching 10 already doubles the row's earnings and helps you pay for the rest.
- On arrival. Without any bonus, the first plant of the Star bloom row earns about 1.25M times more per second than 25 sugar hearts at the 25 milestone. As soon as the world opens, put your coins into it; helpers in earlier worlds keep harvesting for you.
📈 Plant prices at milestones
Price of the 10th, 25th, 50th and 100th plant of each row. At 10, 25, 50 and 100 plants the row's earnings double; at 25 and 100 it also grows twice as fast, so the 25th and 100th plants multiply the row's output by more than four.
| Crop | 10th | 25th | 50th | 100th |
|---|---|---|---|---|
| Star bloom | 2.39am | 32.5am | 2.52an | 15.1ao |
| Moon mushroom | 61.9am | 953am | 91.0an | 828ao |
| Nebula berry | 1.95an | 34.0an | 3.99ao | 54.9ap |
| Ringed bulb | 29.9an | 591an | 85.2ao | 1.77aq |
| Comet flower | 515an | 11.5ao | 2.03ap | 63.6aq |
| Orbit tree | 6.93ao | 174ao | 37.8ap | 1.77ar |
| Galaxy rose | 74.5ao | 2.12ap | 560ap | 39.3ar |
| Cosmic heart | 186ao | 5.29ap | 1.40aq | 98.2ar |