Bromeliad Soil - What Is It?

The potting of Bromeliads which are epiphytic differs somewhat from that of ordinary plants as they have developed specialized root systems suited to their aerial habitats… this must be taken into consideration when selecting a potting media suitable for them.

As Bromeliad roots in nature function primarily as “hold-fasts” to their host tree, they have been thought for years not to need any nutrition at their roots… however they do respond to feeding to a certain extent.

Because their roots are exposed to the air in their natural state, they must have perfect aeration to do their best in cultivation. Certain species have a tendency to produce few roots, and usually in these the root systems are produced only during the early period of the plant’s life and hardly any after the plant reaches its mature size.

It is understandable, therefore, that the potting material used for this type should be of a durable nature. For the dry-growing bromeliads such as many Tillandsias, it is necessary to keep the bases of the leaves high. The potting media must be exceptionally well drained. This need for aeration makes this type most suitable for mounting on plaques where their roots are exposed.

For the Vrieseas, Guzmanias and moist growing Tillandsias, osmunda ( fern root fiber) seems to be the most satisfactory (most commercial Bromeliads are grown in a very well draining potting soil), as this holds a uniform moisture, gives adequate aeration, provides some food value and in addition, because of its firmness, is very convenient to hold the base of a new rootless offset steady until it forms its own root system.

However, most Bromeliads can be grown very well in many different materials. River gravel, perlite, coarse granite, treefern fiber, fir bark, coconut fiber, cork bark, peat, sand, coarse leafmold or mixtures. In fact, mixtures are preferable.