I like the articleGeneralities Trigonidium
The Trigonidium Is medium in size; in winter it assumes a orangeyellow colouring. These are evergreen plants, which means they keep their leaves year round. These plants have an erect, columnar development. The Trigonidium has a shrub- like development. Fertilization Trigonidium
We suggest fertilizing periodically, every 20-25 days, using a specific fertilizer for orchids, to add to the irrigating water. Let’s avoid using fertilizers during the flowering period and leaving the fertilizer in direct contact with the roots. Exposure Trigonidium
These plants don't like cold weather, therefore in the Spring it is best to set them outside only when the temperatures are above 15°C. It is advisable to position this plant in a partially shady place, where it is exposed to direct sunlight only during the coolest hours of the day.Let's locate the plants so that they can enjoy a good diffused brightness, but someplace where they are not directly hit by solar rays. Watering Trigonidium
Water rarely, about once every 1-2 weeks with 1-2 glasses of water , keeping the soil dry for a few days before watering again; when wetting we suggest avoiding surpluses, however to wet the soil deep down. Watering by immersion is suggested for orchids: it consists in soaking the containers in water up to the edge, when the soil is moist let's take out the vases and let the excess water drain before putting them back in place. Treatments Trigonidium
An insecticide treatment should be applied only if damaging insects have been seen on the plant; vaporizing the product we avoid spraying it on the flowers. Soil Trigonidium
Let’s prepare a soft and incoherent soil for these plants, which has an excellent drainage.
Notes - Trigonidium
When wanted we can grow these plants in a vase. The indications given in this article are related to a medium size plant.