Eucalyptus erythrocorys is a medium sized tree 3-10m x 3-6m. Scarlet red seed capsules burst open to reveal bright yellow flowers. Juvenile foliage ovate, mature foliage long and sickle shaped. Flowers February to April. Full sun in most well drained soils. Tolerates poor and coastal soils and dry conditions. Good street or park tree. Frost tender when young.