If you’re ready to become the ultimate moon-farming wizard, this guide will teach you everything you need to know about collecting every seed in Moonstone Island—from grassy plains to poison swamps and even elusive psychic storms. Whether you’re building the perfect garden or just want access to all crops across seasons, this is your go-to guide for seed mastery.

Start with the Right Skills

Before you even think about collecting seeds, invest in two vital perks under the Agricultural skill tree:

1. Propagator – Gives your crops a 25% chance to drop 3 seeds when cut with a scythe. Essential for multiplying your seeds quickly.
2. Lucky Landscaper – Grants a 50% chance for harvested plants to drop seeds. This lets you avoid relying on the Moonstone Scythe, which is otherwise required for collecting high-tier seeds like those found in winter.

Without Lucky Landscaper, you must use the Moonstone Scythe to harvest endgame crops or you won’t get seeds at all.

The Seed Selling Mechanic

Once you’ve collected seeds, head to town and sell them to the merchant NPCs. This is crucial—because selling a seed once will unlock it for purchase later at the general store. Even if you only get one seed of a rare type, keep in mind that selling it is your key to future farming convenience.

This system tracks what you’ve sold. Once a seed is recorded, it becomes available in the general store inventory forever, allowing you to buy it in later seasons or if you accidentally run out.

Where to Find Seeds (Biome Breakdown)

Each biome contains two unique types of plants, and every season brings a different set. To collect every seed, you’ll need to explore all island types across all four seasons.

Here’s the full list of seed zones and what they offer:

1. Grassy (Earth) Islands

• Two plant types per season
• Easily found and safe to explore

2. Beach or Water-Adjacent Islands

• Two plant types per season
• Applies to coastal areas or water-rich islands

3. Poison Islands

• Two unique plants per season
• Hazardous, especially early-game, but manageable with preparation

4. Fire Islands

• Two plant types
• Damage over time environment, grab-and-go method recommended

5. Electric Islands

• Two plant types
• Environmental hazards make it trickier, but worth the visit

6. Dark Islands

• Two plant types
• Great for high-level XP but expect tough spirit encounters

7. Psychic Islands / Psychic Storms

• Two unique plants during psychic storms
• Only accessible during storm events, making them the rarest of all

In total, each season offers up to 10 unique seeds—two from each of the five biome types. That’s 40 unique seed types spread across the year.

How to Locate Psychic Storm Seeds

Psychic storms are special events that temporarily convert an island into a Psychic biome, unlocking exclusive plants and spirits. You can locate these storms using two methods:

Option 1: Craft a Psychic Sight Potion

• Reveals active storm locations on your map
• Only works at midnight, so plan accordingly

Ingredients:

• Sea Glass (from water spirits in barns)
• Dream Drop (from psychic tames in barns)
• Glass Bottle (crafted using Sea Glass)

You can also find these potions randomly in dungeons. If you don’t have one, you’ll have to scout manually.

Option 2: Manual Search

• Psychic storms occur at night
• Look for the purple starry rainfall and check the map for swirling icons
• Be prepared—some islands are small and may only spawn one plant type per storm

You may need to chase multiple storms to collect both seed types for a given season, as RNG can limit what spawns.

Tips for Efficient Seed Gathering

• Visit all biome types each season for full seed coverage
• Don’t skip selling your seeds to the vendor—you can’t buy them later unless you do
• Prioritize Psychic storm seeds—they’re time-limited and the rarest to find
• Use Lucky Landscaper or Moonstone Scythe for guaranteed high-tier seed drops
• Explore quickly in hazardous biomes like fire, poison, and electric—grab plants and run if needed

Seasonal Rotation Reminder

Each new season resets the available plant types across all biomes. That means:

• You can’t complete the entire seed collection in one season
• You must revisit the same biomes in different seasons to gather the full seed list

The moment the new season begins, new plant types become available—so plan your farming trips accordingly.

Final Words: From Planter to Seed Master

With this seed guide, you now have the tools and knowledge to collect every seed type in Moonstone Island. Whether you’re just after seasonal crops or aiming to fully unlock the general store’s seed catalogue, all it takes is a bit of planning, exploration, and storm chasing.

So get out there, scythe in hand (or skill unlocked), and start filling out your seed list. The more you collect, the more you’ll unlock, and soon you’ll be harvesting like a true moon-farming legend.

Good luck, and may the psychic storms rain bountiful crops upon you!