Why Your Calla Lily Leaves Are Turning Yellow (and How to Fix It)

calla-gelbe-blaetter
Nach der Blüte entstehen gelbe Blätter an der Calla.

If you notice your Calla Lily’s leaves turning yellow, don’t panic just yet! Usually, this happens right after the blooming season ends as the plant prepares to go dormant. In this case, yellow leaves are just a natural part of the plant’s life cycle. However, if those leaves start yellowing prematurely, your Calla might be trying to tell you that something is off with its care.

Yellow Leaves Between Blooming and Dormancy

There are generally two main reasons why Calla Lily leaves turn yellow:

  • A natural transition from the flowering stage to the dormant phase.
  • An issue with its environment or care routine.

It’s perfectly normal for the foliage to yellow and wither after a long blooming season. This is just the plant getting ready for its winter nap. You’ll see this same behavior in many bulb plants; it’s a necessary process that allows the Calla to recharge its batteries and store up energy for a beautiful comeback next spring.

Yellow or Brown Leaves During the Blooming Season

If your indoor Calla suddenly develops yellow or even brown leaves while it’s supposed to be in its prime, your plant is likely feeling a bit under the weather. This is usually a sign of a “care fail.” For instance, yellowing can happen if the plant is in a spot that’s too dark or, conversely, too sunny. Callas aren’t big fans of harsh, direct midday sun; they much prefer the gentle light of the early morning or late evening.

Another common culprit for yellow leaves during the growth phase is underwatering. These plants love their moisture! Additionally, yellowing can be a sign of a nutrient deficiency in the soil or, in some cases, a viral infection.

Should You Cut Off Yellow Leaves?

If your Calla has yellow leaves due to stress or disease, you should remove them using a sharp knife to ensure a clean cut. Make sure to give your knife a good cleaning before and after to avoid spreading any germs. A quick pro-tip: Calla Lilies are actually toxic, so I highly recommend wearing gloves and washing your tools thoroughly to avoid any nasty skin irritation.