International Journal of Horticulture, 2024, Vol.14, No.2, 99-109 http://hortherbpublisher.com/index.php/ijh 100 knowledge of the chemical and pharmacological properties of Clematis species can inform their use in medicinal gardens and therapeutic landscapes (Chawla et al., 2012). The primary objective of this research is to provide a comprehensive analysis of Clematis species from resource screening to garden landscape design. to provide valuable insights for horticulturists, landscape designers, and researchers, facilitating the selection and cultivation of Clematis species that enhance garden landscapes while promoting biodiversity and sustainability. Figure 1 Examples of three famous Clematis varieties Image caption: A: Purple Flower Clematis (Clematis 'Jackmanii'): This variety has deep purple flowers that bloom from mid-summer to fall. It is renowned for its large, velvety flowers and long blooming period; B: White and Pink Flower Clematis (Clematis 'Nelly Moser'): This variety features light pink flowers with darker pink stripes. Its bloom time is from late spring to early summer, with a second bloom in late summer. It is known for its bicolored flowers and striking star pattern; C: White Small Flower Clematis (Clematis 'Huldine'): This variety has pure white, small flowers that bloom from summer to fall. It is celebrated for its abundant small white flowers and prolonged blooming period 1 Resource Screening for Clematis 1.1 Selection criteria 1.1.1 Environmental requirements (soil type, pH, light conditions) Clematis species exhibit a range of environmental requirements, which are crucial for their successful cultivation. The soil type, pH, and light conditions significantly influence their growth and blooming patterns. For instance, Clematis canescens showed optimal rooting in a medium of peat and perlite in a 1:1 ratio, indicating a preference for well-draining soil (Guo et al., 2006). Additionally, the pH and light conditions were not explicitly detailed in the provided studies, but it is generally known that Clematis prefers slightly acidic to neutral pH and requires full to partial sunlight for optimal growth. 1.1.2 Climatic adaptability (temperature, humidity) The adaptability of Clematis to various climatic conditions is essential for their selection in different regions. Studies have shown that stock plants grown at higher temperatures (27 °C) resulted in greater cutting numbers and better propagation performance compared to those grown at 21 °C (Samarakoon and Faust, 2022). This suggests that Clematis can thrive in warmer climates, although specific humidity requirements were not detailed in the provided studies.
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