Robert Sadler, 59, died at his home in Llanrumney Avenue, Llanrumney, on 10 January this year.
Emma Saddler, 27, appeared at Cardiff Crown Court via video link on Wednesday.
She was initially arrested on suspicion of murder and detained under the Mental Health Act.
She was transferred to a clinic in Brighton which specialises in mental illness.
The court heard she was re-arrested on Tuesday and charged at Brighton Magistrates' Court, before her case was sent to Cardiff Crown Court.
She appeared via video link from Brighton Magistrates' Court and was remanded to a hospital until her next court appearance on 12 January 2017.
A woman has appeared in court charged with murder and arson after her father died following a house fire in Cardiff.