Even without the "proper ph", plants will adjust over time and should not have much issue. I have not had any adverse affects with growing plants in 8.4PH for Africans. They include Onion Plant (gets VERY huge), Red wendtii, anacharis and several types of anubias and some others I cant think of.
In 7.8-8.0 PH I have grown Asian Ambulia (Limnophila sesiliflora), Red Jungle Vals (Vallisneria gigantea v "Red"), Itialian Vals (Vallisneria spiralis), Cardinal Temple (Alternanthera cardinalis), Hornwort(Ceratophyllum demersum), Creeping Jenny (Lysimachia nummularia), Amazon Sword (Echinodorus amazonicus). All seem(ed) to do fine.
Something to consider with Africans is they want like hard water - plants really dont. But most plants I try do well - for the most part - in dGH 20+ and dKH 16+.
Further, alot of cichlids are diggers so if you do not account for this, they will uproot plants. Plants that attach are good plus those that develop root systems quickly are good. Stem plants tend to get uprooted a lot. I have underground caves and tunnels and my digging africans do not bother my plants much.
Now if you have SA cichlids, you should have no problem with plants because of the lower PH.
Good Luck
Aries