diff --git a/intake/app.py b/intake/app.py
index 77c42d1..6484659 100644
--- a/intake/app.py
+++ b/intake/app.py
@@ -25,6 +25,15 @@ from intake.source import LocalSource, execute_action, Item
 app = Flask(__name__)
 
 
+CRON_HELPTEXT = """cron spec:
+*  *  *  *  *
++-------------- minute (0 - 59)
+   +----------- hour (0 - 23)
+      +-------- day of month (1 - 31)
+         +----- month (1 - 12)
+            +-- day of week (0 Sun - 6 Sat)"""
+
+
 def item_sort_key(item: Item):
     return item.sort_key
 
@@ -276,6 +285,7 @@ def source_edit(name):
         subtitle=source.source_name,
         config=config_str,
         error_message=error_message,
+        helptext=CRON_HELPTEXT,
     )
 
 
diff --git a/intake/cli.py b/intake/cli.py
index 5d6f227..d537bbb 100644
--- a/intake/cli.py
+++ b/intake/cli.py
@@ -334,7 +334,6 @@ def cmd_run(cmd_args):
         from intake.app import app
 
         app.config["INTAKE_DATA"] = data_path
-        print(app.config)
         app.run(port=args.port, debug=args.debug)
         return 0
     except Exception as ex:
diff --git a/intake/templates/edit.jinja2 b/intake/templates/edit.jinja2
index 459f9f4..9dba556 100644
--- a/intake/templates/edit.jinja2
+++ b/intake/templates/edit.jinja2
@@ -79,6 +79,10 @@ span.error-message {
 {% endif %}
 </p>
 </form>
+{% if helptext -%}
+<pre>{{ helptext }}
+</pre>
+{%- endif %}
 </article>
 
 </main>