Four common flowering plants suitable for balcony greening

Ixora (Ixora chinensis): An evergreen shrub with obovate or oblong-elliptic leaves; the corolla is orange-red, and it can bloom in all four seasons, with profuse blooming in summer and autumn; it tolerates shade, and blooms well in full sun to slightly shaded conditions, making it suitable for courtyard planting.

Variegated Chinese hibiscus (Hibiscus rosa-sinensis): Leaves alternate, ovate or pinnately lobed, with serrated margins; it can bloom year-round, with axillary flowers; flower forms include single and double petals, and flower colors are extremely varied and colorful, making it a popular woody flowering plant.

Yellow allamanda (Allamanda cathartica): An upright shrub, 1-2 m tall, with milky sap; branches grayish-white, leaves in whorls of 3-5, elliptic or obovate-oblong, 6-12 cm long, apex acuminate or acute, base cuneate. Corolla orange-yellow, 4-6 cm long, with reddish-brown stripes on the inner surface, base swollen, lobes twisted to the left, with long spines. Flowering period May-August. The yellow allamanda has large, beautiful flowers and dark green, glossy leaves, and is often planted in courtyards for ornament in the warm regions of the south.

Gardenia (Gardenia jasminoides): An evergreen shrub with opposite, oblong-elliptic leaves. Flowers terminal, with 6 petals, flower diameter about 5-6 cm, lobes slightly recurved, opening white and gradually turning yellow, fragrant, flowering from late spring to summer. After flowering, it bears long ovoid fruits; the ripe fruit turns yellow and then orange-red, and can be used as a dye or in medicine. It is suitable for courtyard planting or large pot cultivation.