300 Health
The item id for Frost Planter in unturned is 36488. You can use this ID with the commands below to spawn the item, give it to a player or buy it on a modded economy server.
Useable: Barricade
Has_Clip_Prefab: false
Build: Barricade
Size_X: 2
Health: 300
Range: 4
Radius: 0.2
Offset: 0.25
Explosion: 29
Blueprints: 1
Blueprint_0_Type: Structure
Blueprint_0_Supplies: 2
Blueprint_0_Supply_0_ID: 36016
Blueprint_0_Supply_0_Amount: 1
Blueprint_0_Supply_1_ID: 36118
Blueprint_0_Supply_1_Amount: 1
Blueprint_0_Build: 27
PlacementAudioClip: core.masterbundle:Sounds/WoodenPlacement.mp3