Sorting semi-transparent pixels

I know similar questions have been asked before, but I can't find answers that are applicable to my problem.

I have an unlit cutout shader with a second pass that renders semi-transparent pixels.

It sorts the opaque pixels correctly, but the semi-transparent pixels often end up incorrect.

In this picture; everything is using the cutout shader with a semi-transparent pass. To the right you can see the semi-transparent pixels rendered correctly. To the left there is a semi-transparent white plane with the same shader behind the plant, as you can see the second pass (semi-transparent pixels) are rendered behind the white semi-transparent plane even though the plane is behind the plant.

Any idea how to fix this?

The shader looks like this:

 Shader "Unlit/AlphaTestBlend" {
     Properties{
         _Color("Main Color", Color) = (1, 1, 1, 1)
         _Cutoff("Base Alpha cutoff", Range(0,.9)) = .5
         _MainTex("MainTex", 2D) = ""
     }
 
         SubShader{
         Tags{ "Queue" = "Transparent" "IgnoreProjector" = "True" "RenderType" = "Transparent" }
 
         Lighting off
         ZWrite on
         
         Pass{
         CGPROGRAM
 
 #pragma vertex vert
 #pragma fragment frag
 
 #include "UnityCG.cginc"
 
     struct appdata_t {
         float4 vertex : POSITION;
         float4 color : COLOR;
         float2 texcoord : TEXCOORD0;
     };
 
     struct v2f {
         float4 vertex : POSITION;
         float4 color : COLOR;
         float2 texcoord : TEXCOORD0;
     };
 
     sampler2D _MainTex;
     float4 _MainTex_ST;
     float _Cutoff;
 
     v2f vert(appdata_t v)
     {
         v2f o;
         o.vertex = mul(UNITY_MATRIX_MVP, v.vertex);
         o.color = v.color;
         o.texcoord = TRANSFORM_TEX(v.texcoord, _MainTex);
         return o;
     }
 
     float4 _Color;
     half4 frag(v2f i) : COLOR
     {
         half4 col = tex2D(_MainTex, i.texcoord);
         clip(col.a - _Cutoff);
         return col;
     }
         ENDCG
     }
         Tags{ "Queue" = "Transparent" "IgnoreProjector" = "True" "RenderType" = "Transparent" }
 
         ZWrite off
         Lighting off
 
         // Set up alpha blending
         Blend SrcAlpha OneMinusSrcAlpha
 
         Pass{
         CGPROGRAM
         #pragma vertex vert
         #pragma fragment frag
 
         #include "UnityCG.cginc"
 
     struct appdata_t {
         float4 vertex : POSITION;
         float4 color : COLOR;
         float2 texcoord : TEXCOORD0;
     };
 
     struct v2f {
         float4 vertex : POSITION;
         float4 color : COLOR;
         float2 texcoord : TEXCOORD0;
     };
 
     sampler2D _MainTex;
     float4 _MainTex_ST;
     float _Cutoff;
 
     v2f vert(appdata_t v)
     {
         v2f o;
         o.vertex = mul(UNITY_MATRIX_MVP, v.vertex);
         o.color = v.color;
         o.texcoord = TRANSFORM_TEX(v.texcoord, _MainTex);
         return o;
     }
 
     half4 frag(v2f i) : SV_Target
     {
         half4 col = tex2D(_MainTex, i.texcoord);
         clip(-(col.a - _Cutoff));
         return col;
     }
         ENDCG
     }
     }
 
     
     }