diff --git a/langchain/vectorstores/chroma.py b/langchain/vectorstores/chroma.py
index e70b497d..903be694 100644
--- a/langchain/vectorstores/chroma.py
+++ b/langchain/vectorstores/chroma.py
@@ -59,6 +59,7 @@ class Chroma(VectorStore):
         embedding_function: Optional[Embeddings] = None,
         persist_directory: Optional[str] = None,
         client_settings: Optional[chromadb.config.Settings] = None,
+        collection_metadata: Optional[Dict] = None,
     ) -> None:
         """Initialize with Chroma client."""
         try:
@@ -86,6 +87,7 @@ class Chroma(VectorStore):
             embedding_function=self._embedding_function.embed_documents
             if self._embedding_function is not None
             else None,
+            metadata=collection_metadata,
         )
 
     def add_texts(