Calathea picturata 'Crimson'

Calathea picturata 'Crimson'

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Calathea have been reclassified to Goeppertia, the accepted name of this plant is Goeppertia picturata ‘Crimson’ although many people still know it as Calathea picturata ‘Crimson’.

Goeppertia picturata is part of the Marantaceae family and its native range is Brazil (Amazonas, Tocantins, Acre). Crimson coloured leaves are met by a dark purple petiole, leaf blades are round with wavy leaf margins. 

This plant displays a photonastic response, meaning leaves move to be upright at night. This particular movement is driven by two light-sensitive pigments in the plant: one is sensitive to red light - this raises the leaves; the other is sensitive to blue light - this lowers them. The pulvinus is a motor organ at the base of the leaves and this is responsible for the movement. The cells that make up the pulvinus swell and shrink due to turgor pressure in accordance to the circadian clock and create the visible movement in the leaves (Zhou C, Han L, Fu C, etc. 2012).

Genus name Goeppertia honors German botanist and paleontologist Johann Heinrich Robert Goeppert (1800-1884). The specific epithet means ‘decorated with colour’.

Pot: ø 14cm.

Height: Approximately 40cm from base of pot.

Light: Even if this plant doesn’t see the sun but receives indirect light all day, it will put out new growth, however, for optimum growth and pronounced variegation, provide this plant with bright indirect light, meaning the plant sees the sun for 0-4 hours per day - this could be through trees or a translucent curtain. 

Water: Given adequate light, keep the potting mix evenly moist. If the soil dries out too much, the plant will become limp, aerate the mix with a few pokes of a skewer or blunt stick, pour water slowly over the top and allow the water to pass through the drainage holes. Over the next day or so, the leaves will perk up. 

Fertilising: Feed your plant every other watering during the growing season or when you observe active growth. You can dilute fertiliser to half the recommended amount but never add more.

Potting mix: A well draining mix composed of coco coir, perlite or vermiculite, a little bit of orchid bark and worm castings. Adding a small amount of sphagnum moss will help to retain moisture in the mix.

Temperature: 18-23˚C.

Humidity: Goeppertia prefer higher humidity (over 60%). You can increase humidity by placing the plant on a watered pebble tray or using a humidifier.

Goeppertia is non-toxic.