What Does F1 Cavapoo Mean?

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What does f1 Cavapoo mean for dogs and what do breeders mean by f1b and f2?

These are symbols depicting the different generations and parents used to produce these puppies.


F1 is a symbol given to the first generation offspring that results from mating a Cavalier King Charles Spaniel to either a Toy or Miniature Poodle.

Both parents are purebreds.

The resulting puppies are called hybrids or crossbreeds.


F2 is allocated to a puppy when two F1 adult dogs are mated together.

So both parents are Cavapoos.


A F1b puppy is the result of one of the parents being an F1 adult dog (Cavapoo) and the other parent being either a Cavalier King Charles Spaniel or a Poodle.

Most of the time the second parent is a poodle.

Hopefully, the diagram below will help you to see the differences.

F1 cavapoo

Photo of author


Irma Bense is an experienced dog owner with over 43 years of experience with dog showing, dog breeding, dog training and general dog ownership. Her love for spaniels also includes the Cavapoo, a wonderful mix breed between a Poodle and a Cavalier King Charles Spaniel. Presently she is the proud parent of two Cocker Spaniels, Charli and Bailey and one Cavalier King Charles Spaniel called Tucker.

2 thoughts on “What Does F1 Cavapoo Mean?”

  1. Thank you Irma for explaining the F1 & F2 etc thing…

    Just wondering if you would know the answer to this please?

    What colour poodle would you have to put over a Tri Colour Cavalier to produce mostly red Cavapoos please?

    Also, what would putting a black poodle over a Tri Colour Cavalier produce?

  2. Hi Jan,

    Thanks for reaching out.
    That is quite a complex question and to be very honest I don’t know the answers.
    Genetics is a tricky subject at the best of times.
    I used to breed English Springer Spaniels and they only came in 3 colors so it was quite easy 🙂
    Sorry I cannot help you but I don’t want to give you the wrong answers.

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