Alonsoas are tender, and need protection from frost. Seeds are usually started under glass in the North, although plants bloom well from seeds sown directly in the open. Use only finely prepared soil. For winter bloom, plants are propagated by cuttings or seeds, the latter being sown in late summer. | Alonsoas are tender, and need protection from frost. Seeds are usually started under glass in the North, although plants bloom well from seeds sown directly in the open. Use only finely prepared soil. For winter bloom, plants are propagated by cuttings or seeds, the latter being sown in late summer. |