Red Flash 10 Caladium Bulbs Very Large Caladium - Vibrant Red with Petite Pink Specks and a Dark Green Margin Very tall plant habit - can grow to 24" to 36" tall Full sun to full shade Famcy leaf Red Variety - vibrant red with petite pink specks and a dark green margin Caladiums can only be shipped when temperatures are above 50 degrees. Due to weather, there may be a few days delay to some states.tures don't go below 50 degrees. This will change as spring moves further north. Please do not order unless your night temperatures are above 50 degrees.