Phyto-geographic department of Himalaya is cultivated on 1.8 hectare area, between the coldest and warmest sections of Batumi Botanical Garden, on south-eastern and northern-western slopes. Massive introduction of Himalayan plans in Ajara seaside occurred at the end of XIX century and beginning of XX century from India.
Out of bare-seeds of Himalayan Department coniferous plants are to be mentioned: from fir-tree species - Abies spectabilis, cedar - Cedrus deodara, cypress - Cupressus caschmeriana, Cupressus torulosa, and fir- and pin-tree species - Picea morinda, Pinus griffithii, Pinus roxburghii, majority of them representing “Red List” plants of the International Union for Conservation of Nature (IUCN). Pinus roxburghii grows up to 400-2000 m height in its homeland, mountains, is characterized with solid wood, is used in ship construction, contains large amount of pitch, from which Indian turpentine is produced, with constitution of 14-20 % galipot, whereas plant wood is rich in tanning substances. It is well-grown in our conditions and gives seed able for copping up.
From semi-green species, maple, alder, corner-elder, corn and Euonymus species are to be named: Acer laevigatum, Acer oblongum, Alnus nepalensis, Cotoneaster simonsii, and Euonymus grandiflora.
Aucuba himalaica, Viburnum awabukii, Berberis insignis, Berberis lycium, Cocculus laurifolius, Cornus capitata, Cinnamomum glanduliferum, Ligustrum nepalensis, Loropetalum chinense, Pyracantha crenulata, Stranvaesia nussia other ever-green species growing in Himalayan Department are distinguished with highly-decorative values.
Out of deciduous species, Himalayan Department is decorated with birch, corner, Enkianthus, Indigofera, lionia, magnolia, Prunus padus, soap tree and other species: Betula jacquemontiana, Cotoneaster frigida, Cornus controversa, Cornus macrophylla, Fraxinus floribunda, Indigofera gerardiana, Lyonia ovalifolia v. elliptica, Padus racemosa, Sapindus mukorossi, Sorbaria tomentosa. Magnolia campbellii is distinguiished by high-decorativeness, blooming on its 25th anniversary during its existence, in our climate conditions it bloomed on 13th anniversary; edible black crop of deciduous Viburnum cotinifolium is matured in November.
Out of Himalayan palms tall and elegant palm trees: Trachycarpus martiana and Trachycarpus takil are also met in the Himalayan Department.
Rhus verniciflua is also met there, which should be avoided in view of its toxic features, though high quality precious varnish is produced from its wood in its homeland.
Uncaria rhynchophylla is distinguished from bindweeds, being applied for medical purpose it Himalaya, China and Japan.
Some species of Himalayan origin have adapted to humid sub-tropical climate of Ajara Seaside during decades, now representing a main culture in the decorative garden-growing of Georgian Subtropical Zone (Himalayan cedar, cinnamon, various cornel, Martius palm tree, etc).