This investigation was carried out during the two successive seasons of 2020/2021 and 2021/2022 in the
Experimental farm of Hort. Dept., Fac. Agric. at Moshtohor, Benha Univ., Egypt. This study aimed to the effect
of different cultivation methods (row and alternating planting) and planting distances (30 and 50 cm) with some
herbaceous plants and their interactions on growth, chemical compositions and landscape use of Alternanthera
dentata for using to landscaping the public gardens. The obtained results referred to that alternating Centaurea
cineraria replaced with Lettuce sativa then replaced with Zinnia elegans under 30 cm spacing gave the highest
values in plant height, herb fresh weight and branches number per Alternanthera dentata plant.Also, the highest
N, P, K and carbohydrates percentages produced when Alternanthera plant alternated by Polyanthus rosa under
50 cm spacing. Planting Alternanthera as rooted cuttings as row planting at 50 cm spacing significantly
increased leaves number per plant, herb fresh weight and branches number per plant compared to the other
combinations under study. Alternating Brassica oleracea var. capitata then Zinnia elegans at 30 cm spacing
recorded the highest values in N, P, K and carbohydrates percentages of Alternanthera dentata plant. It is clear
that the overall trend of the questionnaire towards the general form when Alternanthera dentata plants cultured
with different herbaceous plants was 26.7 % preferred, 56.7 % to most extent and 16.7 % not preferred.
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