Grass
Lawn seeder (A Bank Upgrade Reward)
Wheat collection
Can appear when healing Pilfered Payloads or Geodes
Cooking daily at Bo's Kitchen
Rocks
Stage 2 onwards of the Debris Generator
Singing Stone (A Bank Upgrade Reward)
Clearing collection
Amy's Hideout collection
Craftable in the Museum
Drops from a Pilgrim Gopher
Can appear when healing Pilfered Payloads or Geodes
Cooking daily at Bo's Kitchen
"Fishing" at Min's Observatory
Tending Free Range Animals
Thorns
Stage 5 of the Debris Generator
Melancholy rose (A Bank Upgrade Reward)
Cabbage collection
Tumbleweed collection
Amy's Hideout collection
Skull
Stage 3 onwards of the Debris Generator
Cow collection
Graveyard collection
The skeletal remains will also make snakes appear (Ghost Town)
Craftable in the Museum
Can appear when healing Pilfered Payloads or Geodes
Tending Free Range Animals
Wildflower
Potting shed collection
Manure collection
Can appear when healing Pilfered Payloads or Geodes
Tending Free Range Animals
Cactus
April fools collection
This collection is not currently active. However there is a (very) small chance that collectibles may still drop from the Military Parcel Wagon and Dragon Kite bonuses
Can appear when healing Pilfered Payloads or Geodes
Tending Free Range Animals