I just received my tomato seeds today which I bought online. Some of you know that I had some experience in growing tomato with some success in containers. This time I am going to grow them on the ground. It is a hybrid and is heat tolerant ... hmmm... I hope the heat tolerant part is true Oh! It is semi-determinate ... wonder why I thought it was indeterminate when I bought it. Semi-determinate is new to me and I thought "is there such a thing!" Thanks to google it confirm that yes semi-determinate tomato do exist. I am using plastic cups to start the seeds and is wandering how big should it be. The green shorter one diameter is 3 inches and the taller one is 4 inches. So which one should I use?