Differences between Catharanthus roseus and Jasminum nudiflorum
In courtyard greenery and home potted plants, Catharanthus roseus and Jasminum nudiflorum are often confused due to similar names. These two plants have significant differences in biological classification, ornamental characteristics, and maintenance methods. Understanding their differences can help gardening enthusiasts make precise choices.
Plant Attributes and Growth Forms
Differences in Family and Genus Categories
Catharanthus roseus (scientific name: Catharanthus roseus) belongs to the Apocynaceae family, a perennial sub-shrub. Indoor potted plants are usually controlled between 30-60 centimeters, with upright stems that are moderately branched and moderately lignified.
Jasminum nudiflorum (scientific name: Jasminum nudiflorum) belongs to the Oleaceae family, a deciduous shrub. Terrestrial plants can reach 3-5 meters, with slender, arching branches that droop, and distinct winter defoliation characteristics.
Requirements for Growth Environment
Catharanthus roseus prefers a warm and humid environment, suitable for balcony potted plants; Jasminum nudiflorum has strong cold resistance and can survive at -5°C, making it more suitable for outdoor cultivation in the courtyard.
Leaf and Flower Feature Comparison
Leaf Shape and Texture Identification
Catharanthus roseus leaves are oblanceolate and oblong, 3-4 centimeters long, with a reticular vein distribution and a prominent main vein on the leaf back.
Differences between Catharanthus roseus and Jasminum nudiflorum
Jasminum nudiflorum has compound leaves with three small leaflets, ovate and elliptical, about 2-3 centimeters long, with fine and dense sawtooth edges, and the leaves turn golden yellow in autumn.
Flowering Period and Flower Shape Characteristics
Catharanthus roseus flowers throughout the year, with terminal corymbs clustered together, flower diameter 2-3 centimeters, commonly seen in pink, white, and gradient varieties.
Jasminum nudiflorum flowers from February to April, with single yellow flowers生于枝条叶腋, six-petaled star-shaped flowers that open with a fragrant aroma.
Garden Application and Maintenance Tips
Distinctions in Landscaping Functions
Catharanthus roseus is suitable for mixed potted plants and windowsill landscaping, while Jasminum nudiflorum is often used for making hedges, pergolas, or slope protection, with its early spring flowering characteristics making it an important ornamental plant.
Differences in Daily Management
Catharanthus roseus needs to be pinched regularly to promote branching, with phosphorus and potassium fertilizer applied every two weeks; after flowering, Jasminum nudiflorum needs to be pruned heavily, and organic fertilizer should be applied at the end of autumn to enhance its ability to survive winter.
Mastering the biological characteristics differences between the two plants can effectively improve the success rate of cultivation. Catharanthus roseus is preferred for indoor decoration with its long flowering period, while Jasminum nudiflorum holds a unique position in garden landscaping with its early spring characteristics. Reasonable selection of varieties based on the growth environment can create the ideal flower landscape.