Marco, Thanksgiving is the last thursday in November here in the States. I put all of my dendrobiums that need a dry rest in the same place in my greenhouse. It has high light and is cool on that end of the greenhouse. By cool I mean it does not get below 50 deg. I give the plant _no_ water until I see bloom spikes, which can be two months! ( all of December and January) When I see spikes emerge I give small amount of water once a week. David

Beautiful specimen! How old is this beauty? ( I am not trying to guess your age David, lol)I usually get about 15 spikes on my plant in a 4 inch pot. Dunno why- may be unseasonal rain in Jan- I have about 2 -3 spikes this year.

Valieta, Let me throw my .02 cents worth in here. I grew Den. aggregatum for a number of years. I bloomed mine in South Carolina, Kansas, Florida, and Virginia. The plant comes from around the northern part of India, and ranges from the high altitudes to down in fairly low altitudes. This means that some of them get cool dry periods in the winter, and some get less. the altitude that your plant actually came from may affect its blooming, but then you may have one from low altitudes, and it'll be easy. I had a small greenhouse, so all my plants pretty much lived under the same conditions. my aggregatum may have bloomed out of season a few times...Its been a very long time ago...but really, I did not care because it was beautiful when it did and that was what mattered. I would grow it like a Cattleya, then in the fall/winter shelter it from water as much as possible. The pseudobulbs will shrivel a bit, but expect that. keep the plant out of the sunlight and as cool at night as possible, and hope for the best. One trick that works for some cymbidium growers who live where their plants can't get cool nights to bloom is to put a tray of ice in the pot each night for a few weeks in the fall. That may or may not work for you, because you are in effect watering the plant with ice. You might try a season or two without the ice, and if the plant refuses to bloom, try one season with Ice and see. read up and get familiar with the seasonal weather the plant experiences in its growing area, and do your best to match that where you are. Sometimes its a snap to get plants to bloom in different climates than they are accustomed to, and sometimes its just impossible. Either way, its fun trying. Bill

The above info is correct. They need heat and tons of light to get going. Don't overwater if they are not growing! What zone are you in??? Jane