Good day. The Sequoia cultivation is very exciting and interesting but it is not for Beginners. Before buying sequoia seeds should always know that only an average of Are 50-70% viable, because many are just hollow inside. The seeds germinate from Tropica pretty fast (8-10 days) for redwoods. Culturing can succeed almost every, but the care of the plants is a true Mammoth task, because it requires some experience. Should germinate the first 4 weeks after the trees one at most 1-2 hours a day place in the sun. It can happen otherwise that they get heat stroke and then enter. From the 5th week you can then increase the "sun dose" slowly and from the 8th week you can leave all in the sun then. It is important that you get out, the mountain redwoods from the 3rd week. The first three winter they should spend in the house. In Winter Heating Air be avoided, that is, the trees must be in a room without heating. The warmer the trees are, the more light you need. My tip, ca.10-15C ° at a window. NOT in the basement. They can also work well in a greenhouse filters (permanently NO propagator) because there is high humidity and like them very much. The temperature should be in the vicinity of the plants, no matter where they are not above Be 32C °. My advice is, first to grow oak, maple or Mediterranean cypress. By the time you get a feeling for the plants and you then setting automatically what is good and what is not. However, the time needs.