Your ex-husband changing the porch light to green—especially in connection to his father’s recent passing—was likely his quiet way of honoring or remembering someone important to him, even if he didn’t explain it in detail.

Here’s what a green porch light commonly means:

1. Support for Military Veterans

The most well-known meaning comes from the “Greenlight A Vet” campaign, launched in 2013. The green light shows appreciation for veterans transitioning back into civilian life. If your ex-husband’s father served in the military, this might be his personal tribute.

2. Mental Health Awareness

Green also symbolizes mental health, healing, and balance. He may be using it to bring awareness to emotional well-being—either in remembrance of struggles his father faced or as a symbol of support.

3. Remembrance & Solidarity

Some people use green lights after a loss or tragedy as a quiet show of solidarity or mourning. Without needing to say much, the light becomes a symbol of grief, memory, or resilience.

Why He Didn’t Explain

Grief and personal tributes are often deeply emotional and hard to put into words. If your ex-husband simply said it was “because of his father” and left it at that, he may be processing things privately and using the green light as a form of silent expression.

Bottom Line

The green porch light likely isn’t just decorative—it’s symbolic. Whether it honors military service, mental health struggles, or a personal loss, it carries emotional weight. If you’re comfortable, you might gently ask him to share more when he’s ready.