Simon Pugh-Jones

Website Role: administrator

Teacher in charge of the Writhlington Orchid Project

Phalaenopsis deliciosa – 365 days of orchids – day 921

Sarawak is home to many orchid species we know including several Phalaenopsis species including the tiny flowered Phalaenopsis deliciosa that is flowering in our greenhouse this week. This is a species that we have seen growing in Sikkim, where we found it growing in hot valleys in seasonally dry forests where it lives in shade […]


Bulbophyllum sumatranum – 365 days of orchids – day 920

This gorgeous large flowered bulbophyllum arrived in a donation collection a few years ago and has responded well to growing damp and shaded in our Warm Asia section.¬† Bulbophyllum sumatranum is found¬† from Thailand through Malaysia to Sumatra, where it grows in wet forests from 900-1500m. The species was relatively recently separated from Bulbophyllum lobbii, […]


Preparing for Sarawak – TZ testing for seed viability

Amongst the techniques we will be sharing with school students in Sarawak in our forthcoming trips (July and October) will be seed viability testing using TZ (2,3,5-Triphenyltetrazolium chloride). Otto demonstrates the first stage – mixing orchid seed with 10% sucrose in a 1.5ml micro-tube. The tube then sits at room temperature for 24 hours. Everyone […]