Louisa almost let out an 'AHA' at the question. Basically because she was feeling rather gloomy today without really putting her finger on the reason, now it was obvious. Little lighting! But.. why? She always thought greenhouses were meant to stay lightful.

Raising her hand slowly, she spoke, "Is it because this Ivy plant might get yellow spots due to direct intense light?" Really, Louisa had nothing else in mind.