Sedenii is not what I would call a compact plant. It is intermediate in size between its parents, schlimii and longifolium, so it is not huge, but definately not small either. It does have really nice flowers though. A similar cross is Cardinale (Sedenii x schlimii), which although a backross onto schlimii is not really any more compact but has rounder flowers. The clone 'Wilcox' AM/
AOS is one of the nicest orchids available, in my opinion. These will branch their spikes and flower for a very long time. They are also quite vigorous. But I digress. Sedenii is easy to grow. But if you need a really small plant, it's probably not for you.