Dear Jennifer:
You are sowing at the wrong time of the year. Littonia seed
must be sown in Spring and given warmth until germination takes place (which
is usually very good). A mix for it should be very well drained. Small very
poisonous pea size tubers will have formed by the time the plants go dormant
in Fall. Store them dry for the winter under frost free conditions to
restart in Spring in bigger pots. The scarlet pulp that covers the actual
seed must be removed before sowing (easy in tepid water).
Regards
Alberto