Thorn Star
Thorn Star serves double duty as an economic backbone and active attacker, generating sun to fund your garden's growth while dealing consistent damage to any zombies that enter its lane.
Combat Stats
Sun Cost
250 Sun
Damage
20x5
Attack Speed
1.5s
Range
5 Directions
Target
Air
Toughness
300
Details
Thorn Star costs 250 Sun to plant, passively produces sun over time, and attacks every 1.5s covering 5 Directions dealing 20×5 to Air zombies. It holds 300 toughness, sufficient for a protected rear-column position across most wave sequences.
Its economic contribution over a full level run often exceeds its initial planting cost, enabling you to field one additional expensive fusion purely from the sun it generates. Protect it aggressively — its value compounds with survival time, and losing it early forfeits all that accumulated potential income.
Pros
- Two-role efficiency — Sun production and offense from a single plant slot reduces placement demands.
- Compounding value — Total sun generated over a full run multiplies its effective worth beyond its sun cost.
- Garden funding — Enables additional high-cost fusions that would otherwise be out of reach.
Cons
- Exposure risk — 300 requires aggressive front-plant protection to prevent losing its sun production pipeline.
- High-value target — Zombie pathing may prioritize it, requiring active defensive management.
- Combat secondary — 20x5 is a bonus; never the primary damage source in the lane.
1
Plant Thorn Star in one of the rear two columns (7 or 8) at the very start of the level — the earlier it goes in, the more sun it produces across the full wave sequence.
2
Never let Thorn Star be the closest plant to an approaching zombie — always maintain at least two occupied columns between it and the zombie front.
3
The sun Thorn Star produces should fund your next two to three most expensive plant purchases; plan your upgrade path around its expected income.
4
In levels where sun income is already substantial, a second copy of Thorn Star can be placed in a different lane for doubled economic output.
What is Thorn Star and how does it work?
Thorn Star is a Common fusion in Plants vs Zombies Fusion 3.9, created by merging two specific base plants. Common fusions like $name are accessible, versatile, and useful across all stages of the game. It attacks every 1.5s covering 5 Directions, dealing 20x5 to Air zombies with 300 toughness.
Does Thorn Star require sun to plant?
Yes — Thorn Star costs 250 Sun. Planning your sun income around this cost, either through sun-producing fusions or early-wave resource management, ensures Thorn Star is available when you need it most.
What are Thorn Star's strengths in PvZ Fusion?
Thorn Star's primary strengths are its 20x5 damage output and 300 toughness. These attributes combine with parent-plant traits to make it a reliable, adaptable choice for a wide variety of lane setups.
What zombies is Thorn Star best against?
Thorn Star is most effective against Air zombies given its covering 5 Directions attack coverage. In levels where those zombie types are frequent, placing Thorn Star in the lane they favor extracts the maximum possible return from its attack cycle.
