Please help with automation to email a numeric value

Configuration
1

I have been batting my head against the wall trying to simply send an email when the temperature on a sensor goes below a set value. The Automation below sends the email message fine, but the value of the entity is blank. The script must be manually entered in automations.yaml since the UI does not appear to support the entry of the ‘complex’ message. Any help is greatly appreciated.
Thanks, Ron

- id: '1654652521073'
  alias: Greenhouse
  description: ''
  condition: []
  trigger:
   - platform: numeric_state
     entity_id: sensor.zone1_moisture
     below: 90
  action:
   - service: notify.greenhouse  
     data:
      message: "Alarm status changed to  {{ zone1_moisture }}"
  mode: single
2 
  action:
   - service: notify.greenhouse  
     data:
       message: "Alarm status changed to  {{ states('sensor.zone1_moisture') }}"

or:

  action:
   - service: notify.greenhouse  
     data:
       message: "Alarm status changed to  {{ trigger.to_state.state }}"
3

Much appreciated Tom. The first option worked. It seems like I tried your version earlier, perhaps I missed on the spacing or single quotes in the states function.
Thanks! Ron