We can't forget Mom's birthday!
―Phineas Flynn

"Mom's Birthday" is an episode of Phineas and Ferb.


Today is Linda's birthday and Candace tries to make it the best birthday ever. But every time she does, Phineas and Ferb beat her to it. Meanwhile, Dr. Doofenshmirtz tries to shrink everything that he hates so he never has to see them.

Episode Summary

Writing a song for mom

Candace writing a song to her mom.

Phineas and Ferb wake up, hearing Candace singing. They go to the music room, hearing her reciting a part about it being Mom’s birthday. They realize they forgot her birthday and remember several events when they said they can’t forget it. Phineas says they should do something nice for her, with Dad out of town. They quickly come up with a string of plans to create Mom’s perfect day.

Candace goes to serve eggs and bacon to Mom. However, Phineas and Ferb enter the room, slamming Candace into the wall. They give her the Mom Daily, Mom Weekly, Mom Bi-Weekly, and a half-caff-double-frap-mocha-choco-latte-mezzo-espresso. Phineas declares it’s their mission to give her the best birthday ever. They leave and Mom comments she smells eggs and bacon, which just happen to be all over Candace's face.

Phineas calls some friends while emptying the piggy bank. Phineas sees Candace and asks her if she wants to man the omelet station. She says she is doing her own thing, and waits for them to ask her what it is. Phineas asks her what they are doing, and she states it's a secret. Phineas wonders where Perry is.

Meanwhile, Major Monogram gives Perry his mission. Dr. Doofenshmirtz is in his mountaintop castle laboratory where he's purchased suspicious items, including a giant metal sphere and two animatronic wax robots.

Back at the Flynn-Fletcher house, Candace finishes her homemade birthday card. Phineas and Ferb walk Mom to the kitchen and show her a beautiful breakfast. Candace tries to give her the card but is interrupted by Phineas to present her birthday card. Candace states that it’s big, but boring. Phineas and Ferb open the card and reveal a pop-up card with sound. Candace proceeds to eat her homemade card.


Dr. Doofenshmirtz’s “Shrinkspheria”, one of only a few of his inventions to not end in “-inator.”

Meanwhile, Dr. Doofenshmirtz is at his castle, dusting a copy of The Unicorn Whisperer, the feel good movie of the year. Perry comes in through a window. Dr. Doofenshmirtz pretends to be scared, and then states he is not, and traps Perry with the two wax robots. He says he got them from a wax museum that went bankrupt, and likes it when dreams fail. He has noticed several things in the Tri-State Area he detests, such as blinking traffic arrows, ear hair, pelicans, and musical instruments that start with ‘B.’ He shows Perry his new spherical inverntion, Shrinkspheria. He was going to call it Shrinkinator, but has tried out the “-inator” suffix. He shows Perry how the machine works. He will put the name of something he hates and the machine shrinks it so he never has to see it again. He leaves Perry in the castle as he goes to his invention.

Phineas says they are glad Mom liked the card. They leave to prepare her presents. She hopes they don’t go overboard with the presents. She wants a dress from the cute little sundress shop. Candace asks her if she wants the one with the polka dots and leaves to get her one.

Dr. Doofenshmirtz successfully shrinks the blinking traffic signs and proclaims he is an evil genius. Perry notices a rope holding up the chandelier above them. He gets a dart and spits it toward the rope, cutting it and making the chandelier fall. The wax robots melt and Perry goes outside. Candace goes back to the house with the dress. A traffic sign shrinks and the moth circus truck in front of her crashes into a hole, freeing the moths inside. They eventually cover and ruin Candace’s dress.

Dr. Doofenshmirtz tries to shrink pelicans, but the button does not work. Perry shakes the antenna on Shrinkspheria. He tries to get Perry but he kicks Dr. Doofenshmirtz. Candace comes home and sees Phineas showing sundresses to Mom. Candace says it's okay, but not as good as the sundress she bought. The moths on the sundress come to Candace, causing her to scream and go inside. Mom hears Candace, but she doesn't see her.


Many of the characters surprising Linda Flynn-Fletcher.

Perry kicks Dr. Doofenshmirtz into the control, causing him to accidentally shrink all musical instruments that start with ‘B.’ Candace hides into the music room and tries to play the bass. It shrinks, and Candace tries to play the banjo, bassoon, bugle, bongos, balalaika, and bagpipes. She says she should have manned the omelet station. Mom invites a very dejected Candace to sit with her and the boys, who ask her to turn on the presentation. Perry causes Dr. Doofenshmirtz to trip and he turns off the switch on Shrinkspheria. The two wax robots come back, merged into one two-headed body. They try to get Perry but crash into the machine, causing it to explode.

Back home, Mom asks if she thinks the boys' video presentation is great, which she unenthusiastically replies it is. It includes a slideshow of pictures of Linda, as Candace is bemoaning things until Phineas says that "a true testament to what a great Mom you are is that your daughter would take the time to write... this song" which leads to a video the boys made of Candace singing I Love You Mom. They bring a stunned Candace (who likely didn't know of this until now) on the stage where she starts singing along with her own recording, while Phineas, Ferb and the Fireside Girls provide backup. At the end of the song, a tearaful Linda rushes on stage, hugs Candace and wishes that their Dad could have heard it, which reminds Phineas they have a satellite up-link with him.

As everyone else views the up-link, Linda tells her husband the party the boys gave her and Candace singing an amazing song. This brings a smile to Candace's face as she notices Perry coming to her and pets him, saying he missed all the fun.


Running Gags

The "Too Young" Line


Ferb's Line

Phineas: Glad you like the card, Mom.
Ferb: It's a simple, post-modern fusion of origami and pop-up.
Ferb: Shooby-doo, shooby-doo
Line in song
Ferb: You're the one who stays calm
Line in song

What'cha doin'?


Perry's entrance to his lair

Perry spins a photo of himself on the wall to go through a secret small door behind it to his lair.

Evil Jingle


Memorable Quotes

Dr. Doofenshmirtz: Behold, Perry the Platypus, Shrinkspheria! You like it. I was going to call it a Shrinkinator, but I've done that whole -inator thing before, it's just been done to death.

Dr. Doofenshmirtz: Pelicans. Terrible creatures. What are you— a bird or a garbage disposal?

Phineas: Ferb, are you hearing what I'm hearing? Candace singing! Early in the morning!

Candace: (singing a capella) Mom, it's your birthday, thanks for all the care and love you give. Yeah, yeah, that's alright! I like that! (continues singing)
Phineas: (gasps) It's Mom's birthday! How could we forget Mom's birthday? Where have all the days gone?
Flashback of Phineas riding a Rollercoaster: We can't forget Mom's birthday.
Flashback of Phineas in search of a mummy: We can't forget Mom's birthday!
Flashback of Phineas herding cattle: We can't forget Mom's birthday.
Flashback of Phineas surfing: We can't forget Mom's birthday.
Flashback of Phineas singing: We can't forget Mom's birthday.

Flashback of Phineas being chased by a dinosaur: Isn't there something I'm supposed to remember?

Candace: (singing to self) Eggs and bacon, oh yeah...

Wax George Washington Robot: I cannot tell a lie. I am melting.

Candace: Wait a minute! I can still give Mom the one thing the boys can't! The gift of music! Played on my good friend: the bass. (begins to play bass, but disappears because of Shrinkspheria) Huh. Oh well, it's a good thing I play the banjo! (banjo shrinks) It's a good thing I play the bassoon! (bassoon shrinks) It's a good thing I play the bugle! (bugle shrinks) It's a good thing I play the bongos! (bongos shrink)

Announcer: Five minutes later...

Candace: (frantic) It's a good thing I play the balalaika! (balalaika shrinks) It's a good thing I play the bagpipes! (bagpipes shrink) I should have manned the omelette station! (throughout this she talks with increasing desperation)

Wax Abraham Lincoln Robot: We can't seem to get a break.
Wax George Washington Robot: Your breath smells like candles.

Phineas: (referring to his mother's breakfast) Made with love.

Buford: And sweat.
Linda: And by sweat, you mean hard work, right?

Buford: Ehh... sure.

Doofenshmirtz: (referring to blinking traffic arrows) ...stop blinking, telling me where to go! Point. Point. Point. Point. Oh, I hate you!

Background Information

  • Isabella appears in the episode, but we do not actually get to hear her speak, but she sings. This is the first time she only sings in an episode.
  • Candace can play the bass, banjo, bassoon, bugle, bongos, balalaika, bagpipes, and coincidentally almost every instrument that starts with B.
  • Some time in the 1990s, Linda Flynn-Fletcher is seen with a guy, rumored to be her first husband.
  • This is the first time Candace pets Perry.
  • In the backyard beach flashback, Phineas and Ferb are wearing sunglasses and sandals (which Phineas removes before he goes in the water). In the episode itself, Ferb stays on dry land.
  • Because of Linda's birthday being important, this is one of the few times Candace doesn't try to bust Phineas and Ferb. Mom is also aware of every one of the boys' big ideas in this episode.
    • But strangely, Linda does not question how Phineas and Ferb are able to make all of this possible. This is strange when comparing to all the times Linda doesn't believe Candace about all the crazy plans the boys come up with, considering that she is actually the focus of the boys' project.
    • However, she might have assumed that the adults at the party did the building and it was the boys' idea.

Production Information

  • Episode description from the third Phineas and Ferb press release: Enterprising stepbrothers Phineas and Ferb set out to make the best birthday gift ever for their mom, but their sister, Candace, gets competitive, in an all-new episode of the hit animated comedy series "Phineas and Ferb," premiering SATURDAY, MAY 10 (8:30 p.m., ET/PT) on Disney Channel. An original song performed by Ashley Tisdale ("High School Musical") is featured. In "Mom's Birthday Episode," Phineas and Ferb want to give their mom the best birthday ever with a gourmet breakfast in bed, live musicians and a fashion show to rival Paris runways. Candace feels overshadowed when she thinks the special song she has been preparing for her mom doesn't measure up to the big bash her brothers are preparing. But the tables turn when the boys reveal their grand finale. Meanwhile Perry the Platypus works to thwart Dr. Doofenshmirtz's plot to use his De-Hatinator device to rid the world of all the things he hates.
  • This is one of the few episodes that ends on a fade to black and quiet music instead of a huge guitar chord and cut to black.
  • This episode was set to re-air May 10, 2009, for Mother's Day.
  • For some reason, on some DVRs and other digital info for this episode, it says "Mom's Birthday Episode", while it calls "Journey to the Center of Candace" just "Journey".


  • In the multiple flashbacks Phineas has about remembering his mother's birthday, one flashback is from "It's About Time!". This could possibly be an airing mistake, as "It's About Time!" was aired a day after this episode. (Dan Povenmire has also stated that they must be careful for what they put in the episodes, because silly things such as this or E.V.I.L. B.O.Y.S., which named events that happened after the episode aired, will happen because Disney has their own reasons for airing episodes at different times.)
  • In the flashback of "Are you My Mummy", Ferb's color goes transparent for a split second.
  • During the Roller coaster flashback scene, Isabella is no longer behind Ferb, and is instead replaced by a random girl.
  • Also, during the Flop Starz flashback scene, Phineas' guitar is red instead of yellow.
  • When Phineas says "Are you hearing what I'm hearing?", his bed's blankets are drawn outside the bed.
  • Isabella was shown on the stage performing, but she was also in the audience at the same time.
  • When Phineas is handing Mom the magazines, he hands her Mom Biweekly when he says "Mom Weekly" and "Mom Sub-Weekly".
  • When Ferb plays the drums, he still has the bass drum, although Doofenshmirtz made all instruments that start with B shrink.
  • When explaining his scheme, Doofenshmirtz must type the thing he hates into the machine, but when operating the Shrinkspheria, there are buttons with symbols, making the typing redundant.
  • Perry's beak changes color when the camera zooms in and turns to normal again.
  • Shortly after the Shrinkspheria explodes, it is yellow under Agent P's fedora.
  • The buttons "ON" and "OFF" of the Shrinkspheria changes color several times.



  • The Horse Whisperer: There is a DVD in Doofenshmirtz's lair titled The Unicorn Whisperer, parodying the 1998 film The Horse Whisperer. A later Phineas and Ferb episode also has an allusion to this one, called the The Lizard Whisperer.
  • When the robots melt, the Star Spangled Banner in the style of Jimi Hendrix is played in the background.
  • The two wax robots' skeletons are similar to look like a skelecog, a type of cog in Toontown Online.
  • Movieland Wax Museum outside of Disneyland closed and held an auction of some of the figures. Doofenshmirtz got his figures from a bankrupted wax museum. Also a reference to The Hall of Presidents attraction.
  • Pokémon: When the robots, Doofenshmirtz, and Perry are flying away when Shrinkspheria exploded, it looks like the scenes that are in almost every episode of the Pokémon anime where Team Rocket "blasts off."
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Phineas and Ferb Wiki-wordmark This page uses Creative Commons Licensed content from the The Phineas and Ferb Wiki. The list of authors can be seen in the page revision history (view authors). As with Disney Wiki, the text of The Phineas and Ferb Wiki is available under the CC-by-SA Free Documentation License.
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Major Characters: Phineas FlynnFerb FletcherCandace FlynnPerryMajor Francis MonogramHeinz DoofenshmirtzLinda Flynn-FletcherLawrence Fletcher

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Season One: "Rollercoaster" • "Candace Loses Her Head" • "The Fast and the Phineas" • "Lawn Gnome Beach Party of Terror" • "The Magnificent Few" • "S'Winter" • "Are You My Mummy?" • "Flop Starz" • "Raging Bully" • "Lights, Candace, Action!" • "Get That Bigfoot Outta My Face!" • "Tree to Get Ready" • "It's About Time!" • "Jerk De Soleil" • "Toy to the World" • "One Good Scare Ought to Do It!" • "A Hard Day's Knight" • "I, Brobot" • "Mom's Birthday" • "Journey to the Center of Candace" • "Run Away Runway" • "I Scream, You Scream" • "It's a Mud, Mud, Mud, Mud World" • "The Ballad of Badbeard" • "Dude, We're Getting the Band Back Together" • "Ready for the Bettys" • "The Flying Fishmonger" • "Phineas and Ferb Get Busted!" • "Greece Lightning" • "Leave the Busting to Us!" • "Crack That Whip" • "The Best Lazy Day Ever" • "Boyfriend From 27,000 B.C." • "Voyage to the Bottom of Buford" • "Put That Putter Away" • "Does This Duckbill Make Me Look Fat?" • "Traffic Cam Caper" • "Bowl-R-Ama Drama" • "The Monster of Phineas-n-Ferbenstein" • "Oil on Candace" • "Unfair Science Fair" • "Unfair Science Fair Redux (Another Story)" • "Out to Launch" • "Got Game?" • "Comet Kermillian" • "Out of Toon" • "Hail Doofania!"

Season Two: "The Lake Nose Monster" • "Interview With a Platypus" • "Tip of the Day" • "Attack of the 50 Foot Sister" • "Backyard Aquarium" • "Day of the Living Gelatin" • "Elementary My Dear Stacy" • "Don't Even Blink" • "Chez Platypus" • "Perry Lays an Egg" • "Gaming the System" • "The Chronicles of Meap" • "Thaddeus and Thor" • "De Plane! De Plane!" • "Let's Take a Quiz" • "At the Car Wash" • "Oh, There You Are, Perry" • "Swiss Family Phineas" • "Hide and Seek" • "That Sinking Feeling" • "The Baljeatles" • "Vanessassary Roughness" • "No More Bunny Business" • "Spa Day" • "Phineas and Ferb's Quantum Boogaloo" • "Phineas and Ferb Musical Cliptastic Countdown" • "Bubble Boys" • "Isabella and the Temple of Sap" • "Cheer Up Candace" • "Fireside Girl Jamboree" • "The Bully Code" • "Finding Mary McGuffin" • "Picture This" • "Nerdy Dancin'" • "What Do It Do?" • "Atlantis" • "Phineas and Ferb Christmas Vacation!" • "Just Passing Through" • "Candace's Big Day" • "I Was a Middle Aged Robot" • "Suddenly Suzy" • "Undercover Carl" • "Hip Hip Parade" • "Invasion of the Ferb Snatchers" • "Ain't No Kiddie Ride" • "Not Phineas and Ferb" • "Phineas and Ferb-Busters!" • "The Lizard Whisperer" • "Robot Rodeo" • "The Beak" • "She's the Mayor" • "The Lemonade Stand" • "Phineas and Ferb Hawaiian Vacation" • "Summer Belongs to You!" • "Nerds of a Feather" • "Wizard of Odd" • "We Call it Maze" • "Ladies and Gentlemen, Meet Max Modem!" • "The Secret of Success" • "The Doof Side of the Moon" • "Split Personality" • "Brain Drain" • "Rollercoaster: The Musical!" • "Make Play" • "Candace Gets Busted"
Season Three: "The Great Indoors" • "Canderemy" • "Run, Candace, Run" • "Last Train to Bustville" • "Phineas' Birthday Clip-O-Rama!" • "The Belly of the Beast" • "Moon Farm" • "Ask a Foolish Question" • "Misperceived Monotreme" • "Candace Disconnected" • "Magic Carpet Ride" • "Bad Hair Day" • "Meatloaf Surprise" • "Phineas and Ferb Interrupted" • "A Real Boy" • "Mommy Can You Hear Me?" • "Road Trip" • "Tour de Ferb" • "Skiddley Whiffers" • "My Fair Goalie" • "Bullseye!" • "That's the Spirit" • "The Curse of Candace" • "Escape from Phineas Tower" • "Lotsa Latkes" • "Ferb Latin" • "A Phineas and Ferb Family Christmas" • "Tri-Stone Area" • "Doof Dynasty" • "Excaliferb" • "Phineas and Ferb and the Temple of Juatchadoon" • "Monster from the Id" • "Gi-Ants" • "The Remains of the Platypus" • "Mom's in the House" • "Perry the Actorpus" • "Let's Bounce" • "Bully Bromance Break Up" • "Quietest Day Ever" • "Doonkleberry Imperative" • "Meapless in Seattle" • "Delivery of Destiny" • "Buford Confidential" • "The Mom Attractor" • "Cranius Maximus" • "Agent Doof" • "Minor Monogram" • "What a Croc!" • "Sleepwalk Surprise" • "Sci-Fi Pie Fly" • "Sipping with the Enemy" • "Tri-State Treasure: Boot of Secrets" • "Doofapus" • "Norm Unleashed" • "Where's Perry?" • "Ferb TV" • "When Worlds Collide" • "What'd I Miss?" • "Road to Danville" • "This is Your Backstory" • "Blackout!"
Season Four: "For Your Ice Only " • "Happy New Year!" • "Fly On the Wall" • "Bully Bust" • "My Sweet Ride" • "Der Kinderlumper" • "Sidetracked" • "Primal Perry" • "Mind Share" • "Backyard Hodge Podge" • "Bee Day" • "Bee Story" • "Great Balls of Water" • "Where's Pinky?" • "Phineas and Ferb Musical Cliptastic Countdown Hosted by Kelly Osbourne" • "Knot My Problem" • "Just Desserts" • "La Candace-Cabra" • "Happy Birthday, Isabella" • "Love at First Byte" • "One Good Turn" • "Mission Marvel" • "Thanks But No Thanks" • "Troy Story" • "Druselsteinoween" • "Terrifying Tri-State Trilogy of Terror" • "Face Your Fear" • "Cheers for Fears" • "Steampunx" • "Just Our Luck" • "Return Policy" • "Live and Let Drive" • "Phineas and Ferb Save Summer" • "Father's Day" • "Imperfect Storm" • "The Return of the Rogue Rabbit" • "It's No Picnic" • "The Klimpaloon Ultimatum" • "Operation Crumb Cake" • "Mandace" • "Phineas and Ferb: Star Wars" • "Lost in Danville" • "The Inator Method" • "Night of the Living Pharmacists" • "Tales from the Resistance: Back to the 2nd Dimension" • "Doof 101" • "Act Your Age" • "Last Day of Summer" • "O.W.C.A. Files"

Locations at or near Danville: DanvilleSeattleMr. Slushy FranchiseDoofenshmirtz Evil IncorporatedFlynn-Fletcher HouseAtlantisGoogolplex MallOld Abandoned Amusement Park

Other: AfricaEnglandNew YorkBig BenMarsTokyoLondonChinaIndiaCanadaChileHawaii

Today is Gonna Be a Great DaySummer Belongs to YouCity of LoveJump Right InLet it Snow, Let it Snow, Let it SnowPerry the Platypus ThemeGitchee Gitchee GooWhere Did We Go Wrong?BustedLittle BrothersWhat'cha Doin?Carpe DiemS.I.M.P. (Squirrels In My Pants)I'm MeRollercoasterThe Ballad of KlimpaloonEvil for Extra CreditBackyard BeachHappy New YearGreat to Be a BabySerious FunCurtain Call/Time Spent Together