How to Propagate flaming sword?
Propagate by seed, or remove offsets in spring

flaming sword · Vriesea splendens
Grow under glass, ideally attached to bark or branches. Alternatively, grow in pots of standard bromeliad potting compost in moderate light. In growth mist daily and apply quarter strength foliar feed every 4-5 weeks. Keep just moist in winter. See Bromeliad cultivation
Propagate by seed, or remove offsets in spring