a person trained and skilled in the design, construction, and use of engines or machines, or in any of various branches of engineering: a mechanical engineer; a civil engineer. a person who operates or is in charge of an engine.
The most important things to remember with planting rambutan seeds are: 1  Seeds must be put in flat. 2  Don't bury seeds too deep. 3  Soil must be kept loose.  Soil must be 1  loamy. It will take about 10-21 days for the rambutan seed to germinate.
Canna seed propagation involves soaking, heating and scarification. Sometimes it takes a few attempts to get it right. You should start the process at least one to two months before you plan to plant it outside. Germination usually takes one to two weeks.