The calla lily’s funnel-shaped flowers in white, red, pink or yellow is this plant’s claim to fame. If your lily’s flowers are changing colour, it could be a normal part of the plant’s life cycle, or it could indicate an environmental problem.
Excess fertilizer has the potential to cause lilies to turn brown; the salt in the fertilizer builds up in the soil and dries out the lily, even when it receives water. This leads to a chemical burn on the leaves, especially at the tips.
Why do my lilies have brown spots on them?
Once the blight reaches the flowers, the flowers themselves decay and die. The brown spots eventually turn into a grayish mold on the lily plant. Fungicide helps control the disease, and infected lily plants should be given water and fertilizer sparingly to prevent the disease from spreading.
Why are the leaves on my calla lily dying?
Fungal leaf spot can occur on calla lily, particularly if soil is splashed onto the leaves. Fungal diseases can turn the leaves brown, red (rusty color) or black in spots eventually causing the leaf to die. This can be caused by overwatering, transfer of disease from other plants or splashing of soil from the ground or pot up to the plant leaves.
While writing we ran into the inquiry “How do you fix yellow leaves on a calla lily?”.
Fixing problems related to yellow leaves will involve dealing with the plant’s actual planting environment. One way to correct this condition is to transfer your calla lily to a pot with well-drained soil. Repot the rhizomes carefully and don’t over-water the plants when they’ve established their roots.
Do calla lilies like direct sunlight?
Calla lily plants love warm temperatures and sunlight. However, exposing them to direct sunlight for a very long time can lead to sunburn and the browning of their leaves. Although these plants grow well in tropical areas, they should only be positioned in areas with partial sunlight.
A frequent question we ran across in our research was “What happens when calla lilies go dormant?”.
When calla lilies enter the dormant period when active growth is over, the flowers will often change colour, turning green or brown, then wilt and fall over. If the plant is left dormant for at least 60 days, receiving no water, then repotted in fresh soil, it should begin regrowth with coloured flowers again.