A Detailed Guide to Growing Peacock Flower (Caesalpinia pulcherrima) Indoors in Pots: Care Methods and Benefits

The peacock flower (Caesalpinia pulcherrima) originates from the West Indies, and is cultivated in Yunnan, Guangxi, Guangdong and Taiwan, China. It is one of the valuable ornamental trees of tropical regions. So how do you grow peacock flower at home? What are the benefits and uses of peacock flower?What are the potted care tips for peacock flower?

I. Basic Introduction to Peacock Flower

1. Morphological Characteristics

The peacock flower is a large shrub or small tree, reaching a maximum height of 3 m: the branches are green or pinkish-green, with scattered prickles. It has 4 to 8 pairs of bipinnately compound leaves, opposite, with 7 to 11 pairs of leaflets that are long-elliptic or obovate, with a slanted base and a notched apex, and very short leaflet stalks. The raceme is terminal or axillary, the flowers are round and stalked, orange or yellow, with flower stalks up to 7 cm long. The pod is black. There are 6 to 9 seeds. It flowers and fruits almost year-round.

2. Growth Habits and Distribution

The peacock flower is a tropical tree species that prefers a hot, humid climate and has low cold tolerance. When exposed to prolonged low temperatures of 5-8°C, its branches suffer cold damage; it dislikes frost. In southern South China, in places such as Guangzhou and Nanning, it can overwinter safely outdoors in normal years.

For potted peacock flower, move it into a warm shed or indoors in winter, and the room temperature should not be lower than 10°. It likes light and does not tolerate shade; it withstands intense sun and high temperatures, and is best planted in a spot with ample sunlight. It is not demanding about soil, and either sandy soil or heavy clay soil will do; it prefers acidic soil, is fairly drought-tolerant, and also tolerates slight waterlogging.

It originates from the West Indies, and is cultivated in Yunnan, Guangxi, Guangdong and Taiwan, China. It is one of the valuable ornamental trees of tropical regions.

3. Propagation Methods

The peacock flower is mostly propagated from seed. From mid-June to mid-December, the pods ripen successively, with September to October being the peak ripening period; collect the pods that ripen during this peak period, spread them in sunlight, and after they split open, remove the seeds. They can be sown as soon as collected, with the seedlings protected from cold to overwinter, or the seeds can be stored and sown in spring the following year. The seed germination temperature must be above 20°, so sowing in mid-to-late March in spring is more suitable. Before sowing, soak the seeds in 60° warm water, then after it cools continue soaking for 12 hours; germination is fast, with sprouting beginning three days after sowing and ending within a week, and the germination rate is about 60brf.

Another method is drilling in rows. The seedlings grow at a moderate rate; apply nitrogen fertilizer 2-3 times during the seedling stage to push the seedlings along, and after October stop applying nitrogen fertilizer and apply a consistent potassium fertilizer to encourage early lignification. In winter, cover them to protect against frost. One-year-old seedlings can be lifted from the nursery and planted out, and two-year-old young trees can already flower for ornamental display. If leaf spot disease occurs, it can be controlled by spraying a 500-fold dilution of 50bf carbendazim wettable powder.

II. Benefits and Uses of Peacock Flower

1. Ornamental Value

The peacock flower is an upright evergreen shrub in the genus Caesalpinia of the legume family. It reaches 3 m tall, with a corolla that is orange-red edged in golden yellow, blooming on the branches year-round like fiery butterflies. It is one of the valuable ornamental trees of tropical regions.

Among flowers, the peacock flower does not attract attention with color or fragrance; it wins mainly by its bearing and form. Its flower shape is especially intricate: the bloom is just like a flying phoenix, with a head, a tail, wings and feet, vividly and lifelike, exactly like a phoenix in flight, leaving one unable to do anything but marvel at the wondrous ingenuity of nature's creation.

2. Medicinal Value

The peacock flower is a well-known Chinese medicinal herb; its seeds are used as medicine and have the effect of invigorating blood and promoting menstruation. The stem, pounded for juice and taken with yellow rice wine, can treat traumatic injuries.

The seeds of the peacock flower are also called jixingzi, and the stem is also called tougucao; both can be used as medicine, with the effects of invigorating blood and dissolving stasis, promoting diuresis and detoxifying, and promoting menstruation and penetrating the bones. The fresh herb, pounded and applied externally, can treat sores, boils and swelling, and insect bites. The seeds are an antidote, with the effects of promoting menstruation, inducing labor, resolving phlegm and dispersing masses; pregnant women should not take them. The whole plant, pounded for juice, is used externally to treat traumatic injuries. The seeds contain saponins, fatty oils, sterols, polysaccharides, proteins, amino acids and volatile oils. It is cultivated in all provinces north and south of China: for ornamental display, and besides being used in flower borders and bonsai arrangements, it can also be used as a cut flower.

The flowers are used as medicine and can invigorate blood and reduce swelling and treat traumatic injuries. Applied externally, the flowers can treat tinea manuum. They can also remove body odor; the seeds, made into a paste and applied externally, can treat numbness and soreness. It invigorates blood and promotes menstruation, dispels wind and relieves pain, and is used externally to detoxify. It is used for amenorrhea, traumatic injuries, blood stasis and swelling pain, rheumatoid arthritis, carbuncles, boils and sores, snake bites, and tinea manuum. Modern pharmacological research has found that the peacock flower also contains various anthocyanins, which have inhibitory effects of varying degrees on various pathogenic bacteria such as Pseudomonas syringae and Pseudomonas aeruginosa, and Shigella dysenteriae.

In addition, Chinese folk medicine commonly uses the pressed juice of peacock flower petals to treat onychomycosis.

III. Potted Care Tips for Peacock Flower

1. Suitable Soil

The medium for growing peacock flower is best a fertile, loose sandy loam, and the soil should be on the acidic side, which is more favorable for its growth. If the acidity is insufficient, you can add an appropriate amount of ferrous sulfate solution to the water when watering to improve it.

2. Moderate Watering

The peacock flower is fairly drought-tolerant and is not very demanding about water. During the vigorous growth period and full bloom period it needs more water, keeping the potting soil moist; only with enough water can the plant grow and flower normally. In spring and autumn, watering 2-3 times a week is usually enough; when summer temperatures are higher, water once every 1-2 days; in winter, just keep the potting soil slightly moist, watering once every 1-2 weeks.

3. Suitable Light

The peacock flower is a light-loving plant; the more ample the light, the better it grows, and it can be kept in full sun. If there is insufficient light or long-term shade, the branches and leaves will grow leggy, the leaf color will become dull and lusterless, and it may even fail to bloom.

4. Temperature Control

The peacock flower is a tropical plant that likes to grow in a high-temperature environment, but its cold tolerance is very weak, so it is not suitable for planting in the north. In winter, keep the growing environment of the peacock flower no lower than 10 degrees, otherwise growth will be seriously affected and cold damage will result.

5. Reasonable Fertilizing

During the growth period of the peacock flower, apply a dilute nitrogen fertilizer once every half month, which can promote the growth of branches and leaves. But before the flowering period, apply a phosphorus-potassium fertilizer as a top dressing and reduce the amount of nitrogen fertilizer, which can promote flower bud differentiation and increase the number and quality of blooms.

IV. Propagation Methods for Peacock Flower

1. Seed Propagation

The most suitable time for sowing is September to October, when the temperature and humidity both better satisfy the germination and growth of peacock flower seeds. First place the seeds in warm water for 12-24 hours to let them absorb water and swell, then sow. Scatter the seeds on the seedling bed, cover with soil about 1 cm thick, then water using the bottom-soaking method; as long as the environment is suitable, they will generally take root and sprout in less than two weeks.

2. Cutting Propagation

Choose healthy branches from the peacock flower plant as cuttings; the cuttings should retain three nodes. After preparing the branches, insert them into suitable soil, then water to keep moist, and spray with a chlorothalonil solution to disinfect. As long as they are cared for well, 10-14 days is generally enough for rooting.

3. Common Pests and Diseases

(1) Leaf spot disease

After the peacock flower is infected with leaf spot disease, small spots appear on the leaves and then gradually expand and enlarge, and they will also infect other leaves, slowly spreading through the whole plant. After discovering the disease, promptly remove the diseased leaves and fallen leaves, then spray with mancozeb for control.

(2) Nematodes

Nematodes mainly attack the roots of the peacock flower, causing tumor-like growths on the roots, making the plant grow slowly and gradually weaken and wither. After discovery, promptly take the plant out of the potting soil, disinfect and sun-dry the soil, and eliminate the eggs in the soil.