Detailed Guide to Indoor Cultivation Methods and Growth Habits of Littleleaf Boxwood

Littleleaf boxwood prefers a warm, semi-shaded, humid climate, is drought-tolerant, cold-tolerant and tolerant of pruning, is a shallow-rooted tree species, grows slowly and lives long, and is an excellent tree material for making bonsai.

Littleleaf boxwood bonsai has dense branches and leaves and stays evergreen all year round; it is not only a good decorative plant for indoors, but also has a strong adsorption capacity for toxic gases such as sulfur dioxide, chlorine, hydrogen sulfide and hydrogen fluoride, has the ability to absorb toxic gases and purify the air, and is truly an indoor "evergreen purifier", but if it is placed indoors for a long time without sunlight, its normal growth will be affected, the new shoots will be thin and weak, and it will also be prone to diseases and insect pests.

Boxwood can be dug up and planted in all four seasons, but summer is the best, spring and autumn are next, and winter is the worst. After digging, the root of the stump can be wrapped in a plastic bag to keep it moist. When planting, the downward-growing main root should be removed; it is best to seal and coat all wounds with commercially available latex, and cut off most of the leaves to prevent water loss and ensure survival. It can first be grown in the open ground or directly potted, but it must be cultivated for more than two years before shaping and production.

Pot selection Yixing purple clay pots or light-colored glazed ceramic pots can be used. The shape and size of the pot can be determined according to the size of the stump and the styling form. In principle, cascade style should use a square or round tall cylinder pot, while slanting trunk style, curved trunk style, forest style, etc. should use round, oval or rectangular pots.

Potting soil Littleleaf boxwood likes fertile sandy loam; for potting soil, fertile, loose sandy loam with good aeration and water permeability is best. A mix of 40% furnace slag, 40% humus soil or garden soil, and 20% river sand can also be used.

Potting time The time between spring and summer is best. When planting, overly long and dense roots should be cut off, and the root system can be adjusted according to the needs of styling so that the roots spread naturally in the pot. The planting depth should not be too deep; after covering with soil and watering thoroughly, place it in a semi-shaded place, keep the pot soil moist, and frequently spray water on the leaf surface. After about 30 days, once the plant begins to grow, it can be transferred to normal care.

Styling and production Artistic styling should be carried out according to the basic tree form of the plant, adapting to the tree and following its natural tendency. Styling techniques can be pruning or wiring, but wiring is best in summer and autumn, when the branches are more flexible and easy to bend; pruning should be done in spring. Special attention must be paid to the fact that although littleleaf boxwood has a strong ability to sprout, it is "does not sprout without leaves"; therefore, whether for styling or daily pruning, for branches that are not in place, the method of "leaving leaves section by section and shortening to force buds" can be used so that they gradually sprout downward into place. One must not blindly pursue getting it done in one step with hard pruning and hard cutting that leaves no branches or leaves, as this often causes the branches and the whole plant not to sprout or even to die.

Care and management Littleleaf boxwood likes moisture and needs frequent watering to prevent leaf loss caused by water loss. From May to August is the vigorous growth period of boxwood, and several thin applications of decomposed cake fertilizer can be made along with watering. Always pay attention to pruning leggy branches, overlapping branches and excess branches that affect the tree shape. The fruits set by littleleaf boxwood should be removed in time to avoid consuming nutrients. For repotting littleleaf boxwood, generally small and medium bonsai can be repotted once every 2 to 3 years, and large pots once every 5 years; weak-growing plants should be repotted in time. Along with repotting, cut off some overly long and dense old roots, replace with new culture soil and replant.

Pest and disease control The main pests and diseases of littleleaf boxwood are scale insects, larvae of leaf-roller moths and sooty mold. To control leaf-roller larvae and scale insects, an 80% dichlorvos 1500-fold solution can be sprayed; the key to controlling sooty mold is to frequently spray water on the leaf surface to wash off dust.