Answer: These plants are usually seeded in the garden where they are going to grow because they are difficult to transplant. Started indoors, they might be planted one to an extra tall pot and provided a stick on which to climb. They grow so quickly however that it is difficult to accommodate them until the temperatures (and the soil) are warm enough to plant them outdoors. Based on your description, they (and your other seedlings) might be better off with 16 hours of light a day; since this plant likes heat, it is possible it would like an air temperature about ten degrees higher as well. Be careful too that you are not wetting the foliage when you water, that there is good air circulation in the room, and that you are not overwatering the soil. I hope this helps you trouble shoot.
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