Your Cala lilies are natives to swamps, this means their nature is one that deserves consistent moisture. Make them thirsty and you risk their existence. Water consistently and you know the thumb rule with watering- water but don’t drown the plants.
The best way to fertilize this plant which as you’ll soon realize will save you valuable time is to mix the water you intend moisturizing the plant alongside a liquid fertilizer. So you see how you can do two jobs at the same time efficiently.
Autumn is when Callas prefer to thrive luxuriantly. At this season, their temperatures should be limited within 50 to 60F. When they start growing rapidly, they demand warmer temperatures but when they start flowering, you can introduce a partial shade to them.
This should be the easiest way of attending to your Cala lilies. Trimming gives way for more blooming and production of beautiful flowers. That’s common knowledge. Here you trim by just cutting off the yellow leaves and some of the blossoms that have faded.
The Cala lilies aren’t prone to disease infection and pest attacks. This doesn’t mean you should not be wary of this entirely. Most times your environment can be plagued with pest and that would affect every vegetation around it.