The edible seeds are thin, nearly flat, circular, larger and harder than those of the true tomato. The tamarillo is small enough and attractive enough to fit into many parts of the home landscape as long as the site is well-drained. They grow best in full sun except in hot, dry situations, where partial shade is better. They need protection from strong winds. Tamarillos require a fertile, light soil that is rich in organic matter.
Perfect drainage is also necessary.
Water standing for even a few days may kill the plant. Because of the shallow root system, deep cultivation is not possible, but light cultivation to eliminate weeds is acceptable. The plant cannot tolerate prolonged drought and must have ample water during dry periods. A mulch is very beneficial in conserving moisture at such times. Half of this should be applied in early spring and the other half in midsummer.