diff --git a/editor.planx.uk/src/@planx/components/List/schemas/Trees.ts b/editor.planx.uk/src/@planx/components/List/schemas/Trees.ts
index 8bd539c31b..4e01cd2523 100644
--- a/editor.planx.uk/src/@planx/components/List/schemas/Trees.ts
+++ b/editor.planx.uk/src/@planx/components/List/schemas/Trees.ts
@@ -57,6 +57,7 @@ export const Trees: Schema = {
       type: "date",
       data: {
         title: "Expected completion date",
+        description: "For example, 16 04 2027",
         fn: "completionDate",
       },
     },
diff --git a/editor.planx.uk/src/@planx/components/List/schemas/TreesMapFirst.ts b/editor.planx.uk/src/@planx/components/List/schemas/TreesMapFirst.ts
index a0077adb43..8370e44193 100644
--- a/editor.planx.uk/src/@planx/components/List/schemas/TreesMapFirst.ts
+++ b/editor.planx.uk/src/@planx/components/List/schemas/TreesMapFirst.ts
@@ -70,6 +70,7 @@ export const TreesMapFirst: Schema = {
       type: "date",
       data: {
         title: "Expected completion date",
+        description: "For example, 16 04 2027",
         fn: "completionDate",
       },
     },
diff --git a/editor.planx.uk/src/@planx/components/MapAndLabel/schemas/Trees.ts b/editor.planx.uk/src/@planx/components/MapAndLabel/schemas/Trees.ts
index 6cc37e0267..cf79d415ca 100644
--- a/editor.planx.uk/src/@planx/components/MapAndLabel/schemas/Trees.ts
+++ b/editor.planx.uk/src/@planx/components/MapAndLabel/schemas/Trees.ts
@@ -57,6 +57,7 @@ export const Trees: Schema = {
       type: "date",
       data: {
         title: "Expected completion date",
+        description: "For example, 16 04 2027",
         fn: "completionDate",
       },
     },
diff --git a/editor.planx.uk/src/pages/FlowEditor/components/Sidebar/Search/mocks/dataFacetFlow.ts b/editor.planx.uk/src/pages/FlowEditor/components/Sidebar/Search/mocks/dataFacetFlow.ts
index f204dd44fb..7efd76b836 100644
--- a/editor.planx.uk/src/pages/FlowEditor/components/Sidebar/Search/mocks/dataFacetFlow.ts
+++ b/editor.planx.uk/src/pages/FlowEditor/components/Sidebar/Search/mocks/dataFacetFlow.ts
@@ -304,6 +304,7 @@ export const mockListRootResult: SearchResult<IndexedNode> = {
             data: {
               fn: "completionDate",
               title: "Expected completion date",
+              description: "For example, 16 04 2027",
             },
             type: "date",
           },