The genera Thymus and Lavandula are widely spread in the Mediterranean area. They have specific adaptabilities allowing them to live at the ecopedological conditions of this environment. Because of their high ornamental value and their versatility, many cultivars have been selected to be used in different situations. Since their potentiality has been exploited only partially and the data present in literature are scarce, especially regarding Northern Italy, this work aims to evaluate from an agronomic point of view some species and cultivars located at the station of the Department of Agronomy, Forest and Land Management of Turin, located at Carmagnola (TO). To evaluate their environmental needs and their technical and aesthetical potentialities in the landscape architecture, their growth, covering capacity and qualitative characteristics referring to the different phenological phases have been observed. The experimentation on Thymus has demonstrated that this genus has rapid development and high covering capacity, reaching coverage values of 100% during one vegetative season, except the cultivar T. serpyllum ‘Variegato’, which from the beginning has shown signs of suffering until death occurs as early as June. T. serpyllum ‘September’ and Thymus xcitriodorus 'Dooney Valley' have produced the most sprightly and long flowering, lasting from June until the middle of September. These cultivars are the only ones, together with T. serpyllum ‘Russetings’ and Thymus xcitriodorus 'Bertram Anderson', to flower so late. Thymus serpyllum 'Purple Beauty' has been particularly precocious flowering from the middle of May. The lavenders, L. dentata ‘Devant-ville Cuche’ and L. angustifolia have shown the highest covering capacity (80% at the end of the summer). Instead, the lavenders with minor covering capacity have been L. angustifolia ‘Rosea’, L. angustifolia ‘Munstead’ and L. stoechas subsp. peduncolata. Referring to the flowering, the most lasting ones have been found in L. latifolia, producing blue flowers, and in L. xintermedia ‘Alba’, producing white flowers, both of them bloomed from the II decade of July until the first decade of September. L. stoechas subsp. peduncolata has been the most precocious , flowering from the II decade of May.
Aspetti ecofisiologici di specie e cultivar di Thymus e Lavandula
SCARIOT, VALENTINA
2007-01-01
Abstract
The genera Thymus and Lavandula are widely spread in the Mediterranean area. They have specific adaptabilities allowing them to live at the ecopedological conditions of this environment. Because of their high ornamental value and their versatility, many cultivars have been selected to be used in different situations. Since their potentiality has been exploited only partially and the data present in literature are scarce, especially regarding Northern Italy, this work aims to evaluate from an agronomic point of view some species and cultivars located at the station of the Department of Agronomy, Forest and Land Management of Turin, located at Carmagnola (TO). To evaluate their environmental needs and their technical and aesthetical potentialities in the landscape architecture, their growth, covering capacity and qualitative characteristics referring to the different phenological phases have been observed. The experimentation on Thymus has demonstrated that this genus has rapid development and high covering capacity, reaching coverage values of 100% during one vegetative season, except the cultivar T. serpyllum ‘Variegato’, which from the beginning has shown signs of suffering until death occurs as early as June. T. serpyllum ‘September’ and Thymus xcitriodorus 'Dooney Valley' have produced the most sprightly and long flowering, lasting from June until the middle of September. These cultivars are the only ones, together with T. serpyllum ‘Russetings’ and Thymus xcitriodorus 'Bertram Anderson', to flower so late. Thymus serpyllum 'Purple Beauty' has been particularly precocious flowering from the middle of May. The lavenders, L. dentata ‘Devant-ville Cuche’ and L. angustifolia have shown the highest covering capacity (80% at the end of the summer). Instead, the lavenders with minor covering capacity have been L. angustifolia ‘Rosea’, L. angustifolia ‘Munstead’ and L. stoechas subsp. peduncolata. Referring to the flowering, the most lasting ones have been found in L. latifolia, producing blue flowers, and in L. xintermedia ‘Alba’, producing white flowers, both of them bloomed from the II decade of July until the first decade of September. L. stoechas subsp. peduncolata has been the most precocious , flowering from the II decade of May.
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