5 Best Crops for Build an Island

Boost your Coin flow with these top Crops in Build An Island. Discover which seeds to plant early and which ones secure long-term profits.

Build an Island (Source: Roblox)
Build an Island (Source: Roblox)

Coins run the show in Build An Island, and the fastest way to stack them is to plant crops that pay their rent on time. Forget random seed spam. This guide drills straight into the five crops that consistently out-earn the rest, whether you are still clearing trees or already dropping mansions.

You will see which seeds to grab the moment the Merchant refreshes, how each crop slots into your early or late-game schedule, and why re-harvestable plants make your balance climb while you run other tasks.

Best Crops for Build an Island

Start by planting crops that give you quick returns with minimal cost. This is important in the early stages when Coin reserves are tight. Later, shift to slower but re-harvestable crops that bring long-term profit. These five crops offer the best balance between income, growth speed, and overall value:

1. Corn

5 Best Crops for Build an Island
Fastest-growing crop: Corn (Source: Roblox)

Corn is the cheapest and fastest-growing crop in the game. It’s not re-harvestable, but it sells for double its seed price, making it ideal for early-game farming. You can plant it, harvest it, and replant within minutes. Always keep a few Corn seeds in rotation when you’re low on Coins or expanding plots quickly.

  • Normal price: 10
  • Seed price: 5
  • Growth speed: Very fast
  • Re-harvestable: No

2. Strawberry

Strawberry Seeds (Source: Roblox)
Strawberry Seeds (Source: Roblox)

Strawberries grow fast, and more importantly, they’re re-harvestable. Once planted, they keep giving returns without needing to replant, which saves both time and Coins. They’re slightly more expensive than Corn but quickly become a better investment over multiple harvests.

  • Normal price: 11
  • Seed price: 30
  • Growth speed: Fast
  • Re-harvestable: Yes

3. Watermelon

Watermelon seeds (Source: Roblox)
Seeds of Watermelon (Source: Roblox)

Watermelon gives a massive jump in profit. It’s not re-harvestable, but the one-time return is strong enough to make it worth the wait. It’s a good mid-game option when you’ve got space and spare Coins. Use it to quickly build up your funds for rarer seeds.

  • Normal price: 930
  • Seed price: 600
  • Growth speed: Medium
  • Re-harvestable: No

4. Starfruit

Starfruit (Source: Roblox)
A high-cost, high-return crop: Starfruit (Source: Roblox)

Starfruit is a high-cost, high-return crop suited for the late game. It takes a long time to grow, but it’s re-harvestable, and each harvest pays well. If you can afford the seed and wait it out, Starfruit becomes a passive Coin generator. Prioritize it once your island is stable and most plots are filled.

  • Normal price: 1,500
  • Seed price: 2,800
  • Growth speed: Very slow
  • Re-harvestable: Yes

5. Magic Durian

Best Crops for Build an Island
Use Growth Potions (Source: Roblox)

Magic Durian brings flexibility. It sells for a high price and is also used in crafting Growth Potions, which can help accelerate other crops. It grows slowly but pays off in more ways than one. Plant it when you want to scale both farming and potion production at once.

  • Normal price: 950
  • Seed price: 1,250
  • Growth speed: Slow
  • Re-harvestable: Yes

Honorable Mentions

Cherry seeds (Source: Roblox)
Cherry seeds (Source: Roblox)

Not every crop made the top five, but these are still worth planting under the right conditions:

  • Blueberry: High sale price and re-harvestable, but grows slowly and has a higher seed cost. Useful if you’re focused on collecting Golden or Rainbow variants for extra profit.

  • Cherry: Very slow-growing, but re-harvestable and valuable once you’re deep into the late game. Like Starfruit, it pays well but takes patience.

  • Pumpkin: Not re-harvestable, but has one of the highest base sale values in the game. Plant occasionally when you need a large one-time cash boost.

  • Peach: High profit and re-harvestable, but has the slowest growth time in the game. Best used only when you have plenty of plots and nothing urgent to farm.

This crop selection covers all stages of gameplay, from fast-start farming to long-term strategy. Combine Corn and Strawberries early, then add Watermelon for a profit spike. Finally, transition to Starfruit and Magic Durian to set up a sustainable farming cycle. Always check the Merchant every 5 minutes for seed stock updates, and keep extra Coins on hand to grab rare seeds when available.


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