Catalpa trained on a trunk is an elegant ornamental tree form with a single straight stem topped with a regular, rounded or umbrella‑shaped crown. Thanks to its compact habit, it brings a refined, architectural accent to any garden. Characteristics Habit — a tree with a clearly defined trunk and a dense, well‑formed crown. Leaves — very large, heart‑shaped, soft to the touch; they unfold early and stay fresh green for a long time. Use — perfect for small gardens, terraces, along paths, near entrances and in representative plantings. Cultivation Sunny position — the more light, the denser the crown. Soil — fertile, slightly moist but well‑drained. Formative pruning — done in early spring to maintain a perfect spherical shape. Frost resistance — good, though young plants should be protected during the first winters.