I have not gone to the farm for more than a week, and it was a pleasant surprise to see new grams open.
The Grammatophyllum multiflorum var citrinum and the Grammatophyllum multiflorum var tigrinum are growing on the same tree, several meters up. Their spikes are probably a meter long each.
The Grammatophyllum wallissii is potted because of its size. The stalks alone are probably a meter and a half or more long for the older ones. The spike has been up for about a month, but it would probably be three weeks more before most of the blooms open.