Some species grow rather apart in conducive environments and others very concentrated, Diaphananthe lorifolia belongs to the latter, as shown in the below photo from nature. Maybe an explanation for the colony growing is that the first flowers of the 'mother' plant are very close to the tree trunk and seeds are not carried far away by air movement because of the protection of the tree trunk and its own leaves. For a Diaphananthe it has a rather strong scent, not sweet but also not unpleasant, and mostly during the evening (night). The below photos are from the garden growing. And even some seedlings below. That was initially not expected as we are located about 150 meters higher than its earlier growing range.