The very first step would be to document yourself on:

1. The natural habitat of orchids.
2. The climatic conditions of your proposed growing area.
3. Select orchid species/hybrids that would thrive in your conditions.

The next step would be to

1. Accommodate your growing space with adequate shading, ventilation.
2. Choose your plants; not too young; preferably at near flowering size.
3. Bare root plants should be potted in a suitable medium which will maintain a good level of humidity around the roots.

Once the plants have settled in their pots:

1. Water regularly as appropriate.
2. Apply fertilizer according to the stage of growth.
3. Inspect plants regularly to detect pests/disease occurrence and treat accordingly.

For more precise information, you may contact the Orchid Society for assistance.