UN IMMENSE ROSIER LIANE COUVERT DE FLEURS AU PRINTEMPS : ROSA BANKSIAE. Le Quotidien du Jardin N°484

(Original theme music: "Chilean Nature" by Sebastian Bustos and Marie M) NewsJardinTV, the channel that shares its passion for plants, gardens, botany, nature, and gardening, presents issue 484 of its show "Le Quotidien du Jardin," produced by Nicole and Patrick Mioulane. Pilosemêle8866 asks us the following question: I just saw a large climbing rose in a garden in the Var region whose yellow buds are already ready to open. Can you introduce us to this species in an upcoming video? We believe the rose our user admired is Rosa banksiae 'Lutea', the yellow-flowered form of the Lady Banks rose or Banks rose. The Lady Banks rose (roses belong to the genus Rosa, created by Carl von Linné in 1753 and to the Rosaceae family, 389 genera, 6,026 species) was brought from China by the Scottish gardener William Kerr (1779 - 1814) who was the first professional "plant hunter". He was carrying out a botanical expedition for Joseph Banks and he bought the rose in 1807 from a nursery in Canton (now Guangzhou). Sir Joseph Banks (1743 - 1820), the famous English botanist, naturalist and explorer, successfully cultivated the plant in the Royal Gardens at Kew in London. Joseph Banks circumnavigated the globe with Captain James Cook (1728–1779) from August 1768 to July 1771, introducing Eucalyptus and Mimosa (Acacia) to Europe, and upon his return, he headed the Royal Society for over 40 years. The authorship of Rosa banksiae is officially attributed to the British horticulturalist and botanist William Townsend Aiton (1766–1849), who first described and named the plant in 1811 in the second edition of "Hortus Kewensis." The author wished to honor Lady Dorothea Banks, who had married Joseph Banks on March 23, 1779. Lady Banks (Hugessen by her maiden name) was born on November 8, 1758–1828 in Kent. A wealthy heiress, she was a great ceramic collector, but she had no children. Rosa banksiae is native to central and western China, where it is found in mountainous areas at altitudes of 500 to 2,200 m. As a result, it is quite hardy (-12°C). It is a climbing rose with 5 to 12 m long, trailing stems which, unlike most roses, bear virtually no thorns. Occasionally, a few small (0.5 cm) hooked prickles can be found scattered along the main stems. The leaves, 4 to 6 cm long, are evergreen or semi-evergreen, composed of 3 to 5 (rarely 7) oblong, narrow leaflets with smooth edges and pointed tips. The flowers, 1.5 to 2.5 cm in diameter, are double or semi-double, white or pale yellow, and are arranged in corymbs of 4 to 15. They can bloom as early as March, making them among the earliest of the Rosa genus. They are fragrant, with a more or less pronounced violet note, but relatively short-lived (between two and three weeks). The distinction sometimes found in the literature between these two varieties; One with single flowers (Rosa banksiae var. normalis) and the other with double or semi-double flowers (Rosa banksiae var. banksiae) is not included in the international botanical nomenclature. In nurseries, we will mainly find two very vigorous cultivars (over 10 m): • Rosa banksiae 'Alba Plena', with double, white, fragrant flowers • Rosa banksiae 'Lutea', with double, yellow, scentless flowers, the yellow Lady Banks rose (brought to Europe in 1824 by J. D. Parks). The Lady Banks rose particularly appreciates warmth and sun, making it an ideal plant for the Mediterranean climate. However, it is perfectly at home as far away as the Île-de-France region (we have had a magnificent one in our garden for several years). Even poor, slightly chalky soil, as long as it is deep, is suitable for it. It tolerates air pollution and sea spray. Rosa banksiae is much less susceptible to disease than most commonly grown hybrid varieties. It can be allowed to climb up a tree, over an arbor, a pergola, or a terrace, and the only maintenance consists of removing dead wood, reducing the length of overly cumbersome branches, and directing poorly positioned ones. Thank you for watching. We hope you enjoyed this video and enjoyed your time with us. Join us three or four times a week for a new program: "LE QUOTIDIEN DU JARDIN" (Garden Daily). It's on NewsJardinTV and nowhere else! In issue 485, we will answer the following question: I just saw a plant labeled crown vetch in my garden center. It looks like a broom. Are they the same plants, as I find them very similar?