Answer: Lisianthus requires full sun, fairly good garden soil (although nothing extravagant), perfect drainage, and average water and fertilizer. Night-time temperatures of 60-65 and daytime temps of 70-75 degrees are best for growing on small seedlings. Lower temperatures, especially combined with a soil that is too wet, can lead to root diseases (symptoms: yellowing leaves!). Also, it's not uncommon to get some leaf yellowing just after transplanting seedlings. It may be a matter of time (2-3 weeks) before the slow young plants settle in and get their new set of legs.
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