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Birthday cards for your son

Whether he’s turning six or thirty-six, your son is still the kid you once watched sleep. Send him a card that opens from a wax-sealed envelope and writes your words in ink, and choose a message below for his age and your style.

Start this cardWhat to write: 21 message ideas
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Animated designs for this card

Animated

Birthday

Balloon Bash

Glossy balloons, curling strings and a burst of confetti

Animated

Birthday

Candle Wish

A layered cake on a plum night, candles lighting one by one

Animated

Birthday

Pressed Garden

Wildflowers growing and blooming on sage and cream

Animated

Birthday

Golden Confetti

A gold rosette with ribbons and a burst of confetti

Animated

Birthday

Paper Birds

Two origami birds flying side by side on a sky-blue card

Animated

Birthday

Tulip Bouquet

A blush-pink tulip bouquet tied with a ribbon

Animated

Birthday

Mountain Dawn

Layered mountains at sunrise and a gliding paper plane

What to write: 21 message ideas

For a little boy5

  • Happy birthday, buddy! You’re getting so big, and we love every inch of you.

  • Happy birthday to our brave, funny, amazing boy. Get ready for cake!

  • Happy birthday, champ! Today is all about you, your favorite games and as many balloons as we can fit.

  • You make every day an adventure. Happy birthday to the best little boy in the whole world.

  • Happy birthday, sweetheart. Mom and Dad love you to the moon and all the way back.

For a teenager5

  • Happy birthday, son. I know you’re too cool for this card. I’m sending it anyway because I love you.

  • Watching you grow into your own person is the best show on earth. Happy birthday.

  • Happy birthday! You’re smarter, funnier and taller than I ever expected. Please stop growing.

  • Another year closer to driving, and another year of your mother and me pretending we’re not nervous. Happy birthday.

  • Proud of you, kid. Keep being you. Happy birthday.

For a grown son6

  • Happy birthday, son. Watching you become the man you are today is one of the greatest joys of my life.

  • No matter how old you get, you’ll always be my boy. Happy birthday.

  • I’m proud of your work, but I’m prouder of your heart. Happy birthday, son.

  • You turned out better than we ever hoped, and we hoped for a lot. Happy birthday.

  • Happy birthday, son. Call your mother. Also, I love you.

  • Thank you for growing into someone I also genuinely like. That’s a bonus not every parent gets. Happy birthday.

From the heart5

  • The day you were born, I learned a kind of love I didn’t know existed. It’s only grown since. Happy birthday, son.

  • Wherever life takes you, you always have a home to come back to. Happy birthday.

  • I hope this year brings you courage, good friends and at least one great adventure. Happy birthday, son.

  • Being your parent is the best job I’ve ever had. Happy birthday.

  • May God keep you safe, strong and kind this year and always. Happy birthday, son.

Cards for someone special

How to send it

  1. 1

    Pick a design for his age: Balloon Bash for little ones, Mountain Dawn or Midnight Fireworks for older sons.

  2. 2

    Add his name or your nickname for him.

  3. 3

    Choose a message above or write your own, then pick handwriting and ink.

  4. 4

    Add music and preview the card.

  5. 5

    Send the link to his phone, or play the video on the TV at his party.

Tips for writing it

For a young child, keep it short and exciting, and read it aloud with him as it writes itself. For a teenager, go light: a quick joke plus one sentence of real pride, without lecturing. For an adult son, tell him specifically what you admire about the man he’s become, since grown children rarely hear it.

If you’re apart, time it so it’s waiting for him in the morning and follow up with a call. Save the downloaded video; years from now, a collection of birthday cards makes a lovely keepsake.

Frequently asked questions

What do you write in a birthday card for your son?

Tell him you’re proud of him, mention something he’s done or grown through this year and remind him he’s loved no matter what. Adjust the tone to his age.

What’s a good birthday message for a teenage son?

Keep it brief and warm, with a bit of humor: Proud of you, kid. Keep being you. Teens often roll their eyes and quietly keep the message anyway.

What should I write to my adult son on his birthday?

Say what you admire about the man he is now, not just the boy he was. Mention his character, his work or how he treats people, and that he always has a home with you.

Can I show the card to my son at his party?

Yes. Download it as a video and play it on the TV, or open the link on a tablet. Kids love watching the envelope open and the words appear.

Is CardPetal free for parents?

Yes. There’s no charge and no account. Each card gets its own private link, and you can save a video copy for your family archive.

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