Thuja koraiensis

The Korean thuja thrives in environments with moderate humidity and has balanced water needs. It typically requires watering every 1 to 2 weeks. This evergreen plant is drought-tolerant and retains its foliage throughout the year, which means it consistently absorbs water, even during the colder months.

The Korean thuja naturally occurs in habitats like forest understories and rocky areas, where it is subjected to natural shade. It favors partial sun but can tolerate both full sun and full shade, reflecting its versatile, hardy nature.

Korean thuja is highly adaptable to a range of climates, from blazing summers to cold winters. However, it still has a preferred temperature range for healthy growth. If temperatures rise too much, the plant can suffer heat and humidity stress that may kill it. In places where temperatures approach the lower limit of its cold tolerance, it is necessary to apply insulation to protect the plant.

Korean thuja has specific nutrient needs and does not require heavy fertilization. Spring is the best time to apply fertilizer for optimal growth. Providing nutrients enhances its health, increases its resistance to pests and diseases, and helps sustain its long lifespan.

Korean thuja is a tree known for its dense evergreen foliage and pyramidal shape. To keep it healthy, it's best to prune it from early to late winter while it's dormant. Start by removing any dead or diseased branches, and thin out crowded areas to improve air circulation. Regular pruning encourages healthy growth. Be sure to use clean, sharp tools to avoid causing damage to the tree.