gravity forms calendar picker

gf-cal

Make the date picker start 2 weeks from current date.

Find this in your form:
<input name="input_26" id="input_2_26" type="text" value="" class="datepicker medium mdy datepicker_with_icon hasDatepicker">

The id above equals the formID and fieldID below.

<script type="text/javascript">
 gform.addFilter( 'gform_datepicker_options_pre_init', function( optionsObj, formId, fieldId ) {
 if ( formId == 2 && fieldId == 26 ) {
 optionsObj.minDate = '+2 W';
 optionsObj.maxDate = '+2 Y';
 
 }
 return optionsObj;
 } );
</script>

For 2 calendars and GF conditionals.

<script type="text/javascript">
 gform.addFilter( 'gform_datepicker_options_pre_init', function( optionsObj, formId, fieldId ) {
 if ( formId == 23 && fieldId == 64 ) {
 optionsObj.minDate = '+8 W';
 optionsObj.maxDate = '+2 Y';
 
 } else if ( formId == 23 && fieldId == 66 ) {
 optionsObj.minDate = '+2 W';
 optionsObj.maxDate = '+2 Y';
	 
 }
 return optionsObj;
 } );
</script>

Add an HTML field to your form and paste the above script.