Arguing with ApexCharts

I’m trying to get a chart with a bimonthly bar chart with energy power consuption starting from february-march. What I want is a 6 bar chart and I used this code:

type: custom:apexcharts-card
header:
  title: Consumo bimestrale
  show: true

series:
  - entity: sensor.consumo_feb_mar
    name: "Feb–Mar"
    type: column
  - entity: sensor.consumo_apr_mag
    name: "Apr–Mag"
    type: column
  - entity: sensor.consumo_giu_lug
    name: "Giu–Lug"
    type: column
  - entity: sensor.consumo_ago_set
    name: "Ago–Set"
    type: column
  - entity: sensor.consumo_ott_nov
    name: "Ott–Nov"
    type: column
  - entity: sensor.consumo_dic_gen
    name: "Dic–Gen"
    type: column

apex_config:
  chart:
    stacked: false
  plotOptions:
    bar:
      columnWidth: 45%
  xaxis:
    type: category

But what I get is the following:

How to get what I want?