When does Serissa japonica bloom? The flowering period is mostly from May to July

Serissa japonica (snowbush) is an evergreen small shrub in the family Rubiaceae. It gets its name because its flowers are small and pure white, looking like snow resting on the branches when in full bloom, and because it happens to open around June. It usually begins forming buds every year in May, enters full bloom in June, and with proper care the flowering period can extend into July, with the whole blooming season lasting about one to two months. The exact blooming time varies slightly with the climate of each region; warm southern areas open earlier, while the north is a little later.

Serissa japonica is a short plant with fine, dense branches and leaves. Its corolla is funnel-shaped, white with a faint pink tinge, dotted in clusters along the branches, and highly ornamental. Common cultivated varieties include golden-edged Serissa, silver-edged Serissa and double-flowered Serissa, each with distinctive leaf-edge markings and flower forms, suiting different ornamental needs.

If you want Serissa japonica to bloom on schedule, light is key. Long periods of shade easily lead to leggy growth of branches and leaves with few flowers, so during the growing season it should be placed in a spot with ample sunlight and good ventilation. Water so that the soil dries out between waterings and stays moist after watering, avoiding standing water in the pot. Before flowering, a light application of phosphorus and potassium fertilizer can promote flower bud differentiation. After flowering, promptly cut off spent flowers and overly dense branches, which helps keep the plant compact and makes next year's flowering more abundant.

Serissa japonica has flexible branches and tolerates pruning well, making it a common material for bonsai; it is also suitable for courtyard and balcony displays or for planting as a hedge. It likes warmth and humidity, and in winter attention should be paid to cold protection to avoid low-temperature damage to branches and leaves. As long as the environment is suitable and management is proper, every year in early summer you can see small white flowers like fine snow covering the branches.