Crosandra are a type of year-round flowering and very beautiful semi-shrubs that are also grown as decorative houseplants. They belong to the Acanthaceae family and are distributed in Asia, Africa and Madagascar. The species Crossandra infundibuliformis (Firework Flower), growing in southern India, Sri Lanka (Tamil கனகாம்பரம்) is the most popular representative grown in the home environment. Although extremely capricious, with good care, this plant can bloom continuously for years. Its flowers have no aroma, but due to their freshness, brightness and beauty are widely used in his homeland for making garlands, often in combination with jasmine, as well as for decoration. Its height in the natural environment is a meter or more, while as an indoor flower it rarely reaches 50 cm.

For the cultivation of Crosandra in the home must create conditions close to the natural. It lives in light rainforests, so it needs a long day and diffused light. Direct sunlight can burn leaves and petals.
The optimum air temperature even in summer should not exceed 25 ° C. However, winter cooling below + 18 ° C will result in slower growth, 10 ° C being the absolute minimum for his life. Also in a cold room, the croissant may lose some of its leaves. In summer, it is useful to place the flower in the garden or on the balcony, but it is important to choose a place protected by currents.
Every species coming from the tropics needs high humidity. Spray humidification, water tank, proximity to aquarium, mechanical humidifier, etc. is required. The hotter the room, the more it needs to be sprayed, otherwise the leaves will dry. In this case of moistening, the water droplets should not fall on the blooming flowers. Crossover is extremely susceptible to fungal diseases, so great care should be taken to decay the roots or mold on the leaves.

This indoor flower should be watered with plenty of soft and warm water, but draining should be complete and new watering is desirable when at least 3-4cm of soil layer has dried. During the winter months it is watered rarely. Although flowering year-round when planted in a pot at home, it is advisable to let the croissant rest during the cold months to stimulate flower formation from May to September. Rest is a dilution of watering and reduced hours of light from late fall, which will slow the growth, but also help the flower to recover for a new active period from next spring. Through it it can be fertilized moderately and weekly with complex mineral fertilizers for flowering houseplants. It is desirable to trim the shoots (stems) at least one third once the flowering is complete. This is good for growing shrubs because the plant is gradually growing and after 3 to 5 years the stems are bare.

In order for the plant to grow normally at home, it needs replanting every 2-3 years into a larger pot. At the bottom it is obligatory to make drainage (brick pieces, pebbles, clay pieces, expanded clay). It is also desirable to partially remove the old soil from the roots.

The soil for the crossover should be loose and have a slight acid reaction. To avoid root rot, you can also add pieces of charcoal.