/* O CSS */
#garden {
  display: grid;
  grid-template-columns: 50% 50%;
  grid-template-rows: 50% 50%;
}

.oddish {
  background-color: #4cafa5; /* Cor do Oddish */
  
  /* --- A RESPOSTA AQUI --- */
  grid-row: span 2; 
  /* ----------------------- */
}

.gloom {
  background-color: #d65d34;
}

.vileplume {
  background-color: #d63434;
}