The present invention relates to ornamental plants displaying compacted growth or having the phenotype compacted plant growth. The present invention further relates to methods for providing plants displaying compacted plant growth and to the use of inbreeding, such as by selfing, to obtain ornamental plants with compacted plant growth. Specifically, the present invention relates to ornamental plants displaying compacted plant growth without use of plant growth regulators during cultivation；- said ornamental plant displaying compacted plant growth without use of plant growth regulators during cultivation is vegetatively propagated from a first ornamental plant displaying compacted plant growth without use of plant growth regulators during cultivation said first ornamental plant is obtainable by inbred breeding of at least 2 generations of a second ornamental plant not displaying compacted plant growth without use of plant growth regulators during cultivation； and- said ornamental plant is selected from plants belonging to a family selected from the group consisting of Liliaceae, Araceae, Solanaceae, Euphorbiaceae, Geraniaceae, Asteraceae, Orchidaceae, Rosaceae, Caryophyllaceae and Crassulaceae.- said ornamental plant has a heterozygosity percentage being decreased by at least 20% as compared to the heterozygosity percentage of said second ornamental plant not displaying compacted plant growth without use of plant growth regulators during cultivation.本發明係關於展現緊密生長或具有表現型緊密植物生長的觀賞植物。本發明進一步關於提供展現緊密植物生長的植物之方法以及關於諸如藉由自交(selfing)之近親繁殖以獲得有緊密植物生長之觀賞植物的用途。具體言之，本發明係關於在栽種期間不使用植物生長調節劑下展現緊密植物生長的觀賞植物；- 在栽種期間不使用植物生長調節劑下展現緊密植物生長的所述觀賞植物係從第一觀賞植物營養繁殖，該第一觀賞植物在栽種期間不使用植物生長調節劑下展現緊密植物生長，所述第一觀賞植物藉由第二觀賞植物之至少2個世代的近親繁殖育種獲得，該第二觀賞植物在栽種期間不使用植物生長調節劑下沒有展現緊密植物生長；且- 所述觀賞植物係選自屬於以下所組成之群的科之植物：百合科(Liliaceae)、天南星科(Araceae)、茄科(Solanaceae)、大戟科(Euphorbiaceae)、牻牛兒苗科(Geraniaceae)、菊科(Asteraceae)、蘭科(Orchidaceae)、薔薇科(Rosaceae)、石竹科(Caryophyllaceae)和景天科(Crassulaceae)。- 相較於在栽種期間不使用植物生長調節劑下沒有展現緊密植物生長之所述第二觀賞植物的異型接合性百分比，所
