Bulbs should be planted in the spring after the last
frost and soil temps are 70° or more. The USDA temperature
zone chart provides the following guidelines, however
temperatures can vary
in specific locales therefore nothing substitutes for local
knowledge for exact planting dates. YOUR ZONE CAN CHANGE! From
time-to-time the USDA upgrades the zones, our calculator below will
give you the latest upgrade for your zone by entering your zip code.
Early Planting Dates
Latest Planting Dates
Late Planting Date Guidelines
Caladium bulbs like warm moist (not soggy) soil. To get a jump start in northern climes, put your bulbs knobby side up about 1½" to 2" deep in a shallow pan, bag or flat full of potting mix. Keep the mix warm (70's is nice) and you will find the bulbs shooting up and ready to transplant in the ground.