WSBEorchids

Bifrenaria harrisoniae – 365 days of orchids – day 1571

More fragrance in the greenhouse today with Bifrenaria harrisoniae, a contender for our most fragrant species. We have several plants and they will be flowering through April and May.

The species, which has been a firm favourite since Victorian times, has thick waxy flowers that are long lasting if kept dry. If you are into scented plants, you just must grow this species. It is a real shame that we can’t provide scent with our photos here – you just have to be in our Cool Americas section.

Bifrenaria harrisoniae is native to the Mata Atlantica, Brazil, and in 2000 our expedition came across it growing on a bare granite mountain side West of Nova Friburgo.

As the photo shows, plants are growing in full sun with their roots holding firmly to the rock and very little around the plant to retain moisture. This rock was dry in the winter when we visited but would be running with water for much of the wet summer season. After seeing the plant in the wild we adjusted our growing of the species to give more light but keep cool temperatures (the altitude was around 1000m) and we grow plants in the unshaded south facing doorway of the Cool Americas section.

The habitat also sheds light on the why the species choses April both to flower and release seed. In April the climate here is still dry meaning that flowers will remain undamaged until pollinated and seed released now will be able to blow across the dry habitat. In a months time there will be heavy rains, providing water for the new growths, the maturing seed pods and the germinating seedlings.

We have large numbers of seedlings in our lab and we will be offering more of this lovely species later in the month.

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