Please note: These are non-exhaustive tips, since each plant will react differently depending on its environment. If your plant is doing very well and your maintenance does not follow this sheet to the letter, don't change anything. Pay attention to the moods of your plants first and foremost!
Care sheet for Calathea roseopicta 'Médaillon'
Up to 1m
Family: Marantaceae
Exposure: Subdued – no direct sun.
Mist: Regularly; this will notably keep away thrips and mites in addition to washing its leaves (if it is rainwater, otherwise beware of traces of limescale). Be careful, the water placed on the foliage must be allowed to dry between two mistings (risk of fungal diseases). In winter in particular, it is not necessary below 18°C. Namely, misting is not used to increase humidity for more than a few minutes. For that :
Humidity: She will appreciate a larger dish with clay balls and a bottom of water, to moisten her leaves thanks to evaporation. At best you can invest in a humidifier. She will enjoy the company of other plants.
Watering in spring/summer: approximately every 3 days; the substrate must remain moist.
Watering in autumn/winter: Wait until the substrate is dry (but still a little cool).
Temperature: Ideal between 18-22°C. Should not drop below 12°C. It is possible to leave it outside in the shade as soon as the weather starts to get nice (be careful, however, in high heat)
Repotting: In the spring every two years if the plant is cramped (roots sticking out); resurfacing every year.
Soil: Rich; potting soil for green plants or houseplants and best mixed with heather soil and 1/3 perlite. The best being an intermediate aroid mixture, 25% potting soil (preferably organic), 25% sphagnum moss, 40% coconut bark (between 10 and 20 mm) and 10% perlite (20% if your climate is more temperate/cool). Sphagnum moss will help in particular to retain the necessary humidity.
Liquid fertilizer: if used, from April to October every two weeks, then stop completely. Useless if the potting soil is recent and already contains fertilizer (wait at least one month). Liquid fertilizer should always be applied to previously watered soil.
Concerns:
-If the leaves dry at the edges: lack of humidity.
-The leaves roll: lack of water or humidity.
-The leaves turn yellow: perhaps an attack by parasites. Clean the underside of the leaves.
-The leaves are drooping and yellow despite appropriate watering: the soil no longer contains sufficient nutrients. You have to repot.
-If the leaves turn pale: overexposure.
Very prone to mealybugs and red spiders, thrips.
To know: Non-toxic. Be careful of drafts. Plant very sensitive to excess light. If all its leaves turn towards the light source in the room, it is on the contrary because it lacks brightness: in this case, place it about 2m from a window, and/or turn it regularly. It is a prayer plant: it raises its leaves when the light goes away.
There are many cares and tips that generally apply to almost all indoor plants, such as avoiding drafts, draining the substrate, avoiding placing near heat sources, avoiding direct sunlight ... To find out about them, I advise you to read my article Basic plant advice sheet. Otherwise, generally speaking, the articles on the Basic Advice page.
Other varieties:
Calathea majestica: elongated leaves, white and pink streaks, green veins
Calathea warscewiczii: dark green leaves, light green veins
Calathea lancifolia: elongated, slightly wavy leaves, dark green reliefs on a light green background
Calathea ornata: dark green leaves, streaked white and pink; striations more spaced apart than on the majestica
Calathea orbifolia: light green leaves, streaked with white, rounder and wider
Calathea concinna: slight dark green reliefs on a lighter background, dark green veins
Calathea zebrina: fairly long leaves, striped green and light green
Calathea makoyana: very similar to concinna
Calathea roseopicta Dottie: the same as the medallion but with almost black leaves and pink center + circle
Calathea Maui Queen: green leaves and touches of white in the center
Calathea Network: light green leaves dotted with rectangles with darker outlines
Calathea Tanja: white leaves, green edges.
Calathea roseopicta Rosy: similar to Tanja but pink leaves and almost black edges.
Calathea White fusion: long green leaves variegated with white.
Comments