If the answer is yes, that indicates rot due to bacterial or fungal infection. You will need to remove all afflicted roots and repot into a new, well-draining mixture.

Each leaf is attached to a reddish-pink stem and newly formed leaves are rolled highlighting their purple undersides. This brings even more color to this low-growing and compact plant, which matures to around 12 inches tall. White insignificant flowers forming in spring, though houseplants rarely flower. Loves warm environments, so keep temperatures steady within the 65-85°F (18-29°C) range. Ensure the ambient temperature doesn’t dip below 60°F (15°C). They often start as tiny brown or rusty spots encircled by a yellow halo. These leaf spots expand and merge into large blotches. Drooping is another sign that your plant needs a drink. This is especially the case if the leaves are curled, browned on the edges, and crispy on the surface.Both sides of the leaves are spotted with various dark green blotches. When grown indoors, Calathea lancifolia rarely blooms, however, in springtime yellow flowers bloom on 4-inch spikes, but you won’t miss the flowers with the plant’s attractive foliage. Calatheas don’t tolerate dry soil well and will shrivel before your eyes in an instant. Ensure that the top of the media of your White star is damp, but not wet to touch. Once the top layer of the soil begins to dry it’s time to water. Calatheas require a humid environment, especially during winter. Use one of these methods to keep humidity at an optimum level. Instead, calathea beauty star plants are happiest with medium to bright indirect or filtered light. In most areas in USDA Hardiness zones 11 &12, that means placing your plant in front of a north-facing window. West and east-facing windows can also let in ideal light. [2] Temperature Moreover, they close their leaves during nighttime and open them up during the day. Interesting, aren’t they?

You can use any traditional potting mix. Make sure it’s peaty by adding one part perlite and two parts sphagnum peat moss. You can also add in one part loamy soil. The stunning flowers resemble flames in colors of bright orange or yellow, rising on spikes and mingling among the wavy spear-shaped leaves. Each bloom offers two to three months of long-lasting color. However, once the flowers fade the dark green metallic foliage puts on an attractive show of its own. Mature plants average 1 to 2 feet tall and wide. In addition, the plant will reabsorb nutrients from the lower leaves as it grows, making them yellow and brown before falling.

Humidity

Like other Calathea species, Calathea roseopicta is naturally found in rainforests in South-America. This gives us some good care indications to keep in mind when growing this plant at home. Too little light. If the leaves on your plant appear faded and it’s in a low light spot, that might be it. Unfortunately you have to accept that all plants need light and they can’t be in a dark spot in the home. Slowly acclimate your Calathea to a higher light location. If your plant is kept in very bright sunlight for a prolonged time and without proper humidity, soon dry spots will develop on the plant.

A balanced all-purpose balanced fertilizer, such as one with a 10:10:10 nitrogen, phosphorus, and potassium ratio, is suitable. Each leaf can grow over 12 inches tall, folding at night and mature plants can grow over 2 feet wide and tall. Although Calatheas rarely bloom as houseplants, Calathea zebrina produces insignificant whitish-purple flowers in spring. This Calathea is sure to add a tropical and colorful feeling with its broad leathery and glossy leaves. They sport dark green on top with feathery pinstripes tinged in rose and cream, with the undersides dark purple. The leaves are attached to purple stems and grows to around 2 feet tall and about half as wide at maturity. You can keep it happy and healthy by caring for it as you would its mother, Calathea ornata. Expert Calathea Care Tips Their colorful leaf pattern isn’t the only reason these plants make for excellent houseplants. They’re reasonably dense, lush, and boast upright, sprightly growth, marrying well with other common houseplants.Note: Liners are "squashy" so they can be pushed through the opening to expand and fit closer to the pot wall once inside. Liners can also be cut down to size with scissors for a neater fit if they bulge inwards slightly at the top. Calatheas can also be inflicted by leaf spot diseases, especially those caused by fungi, including fusarium leaf spot, helminthosporium leaf, and Alternaria leaf spot. A balanced indoor plant fertilizer with a 10-10-10 NPK ratio (nitrogen, phosphorus, potassium) is recommended to apply during its growing period. Keep away from cold and drafty locations and provide bright filtered light. Too little light results in leggy plants and too much direct sunlight scorches the foliage, and it loses its color.