I planted caladium bulbs here in Atlanta in April. We had an early and warm Spring. Some of them sprouted in a couple of weeks. I gave up on the rest, but in late May, early June, they began to sprout. Some are in a pot and some in the ground. How long does it usually take for them to sprout after being planted?
It can vary considerably based on the depth they were planted, they type of soil, and how much light they receive. I have had mine vary over about a 5 week period from planting to seeing tips breaking through the soil. Be sure to not overwater, especially in the area where they haven't come up yet as their water needs are greater once they start developing their foliage. They are a wonderful plant to add foliage colour.