Hi Krystall,
Thank you for visiting the Disney Parks Moms Panel with your question! Yes, if you are visiting in April, you will be visiting during the
Epcot International Flower & Garden Festival. This festival offers many activities and makes the already gorgeous Epcot burst with even more color and beauty!
I have great news for you. Much of the Epcot International Flower & Garden Festival is included with your theme park admission. The interactive play areas for little ones, the Flower Power Concert Series, the butterflies and topiaries and so much more, are all included in your theme park admission. As you peruse the link that I provided, it will be noted when activities have a fee, such as some of the tours, and of course if you wish to sample some of the foods from the Outdoor Kitchens, that will be an additional charge.
It sounds like you might be traveling with a little one. I will tell you that my daughter was enthralled with the butterflies when she was younger, and the outdoor playgrounds were a welcome place to let her run around and work out some energy during the day.
I hope that this information is helpful for you, Krystall! Please do let us know if you have any further questions as you plan your magical vacation.