Give it a bit of sunshine and it beams, and when it blooms it fills the whole balcony with flowers

Spiraea thunbergii

Spiraea thunbergii (bridal wreath spiraea) is mostly a sun-loving plant that likes plenty of sunlight and tolerates waterlogging; as long as there is no long-term standing water, it is fine. It is fairly cold-hardy and adapts well to different soils. The spiraea thunbergii shrub is full and lush, with clean, elegant branches and leaves. In midsummer it can produce refined white flowers, and the flowering period is very long. It has a killing or inhibiting effect on many harmful bacteria. It is very suitable for planting in courtyards or all kinds of garden green spaces.

Fringetree

Fringetree (Chionanthus retusus) likes sunlight, is not shade-tolerant, tolerates drought and cold, dislikes standing water, and is long-lived. It likes to grow in fertile, well-aerated sandy loam. Its tree form is tall and neat, with luxuriant branches and leaves, and its flowering period is long and beautiful. When it blooms, the small white flowers are dense and fresh and lovely, and the flowering period lasts about 1 month. It is suitable for courtyard planting or planting in parks.

Weigela

Weigela (Weigela florida) likes sunlight, tolerates cold and shade, and does not tolerate waterlogging. It has low requirements for soil, but moist soil rich in humus is best. Weigela has dense branches and leaves, bright and beautiful flower colors, and abundant flowers. Its flowering period comes right when spring flowers are fading and summer flowers are scarce, and its flowering period lasts as long as 4~5 months. It is suitable for planting in lawns, in courtyards in front of or behind houses.