It also grows well outdoors in its growing zones and is a popular choice for containers and shade gardens.
Here’s everything you should probably know about how to grow and care for the hardy cast iron plant.
Be sure to keep cast iron plants away from direct sunlight, which can bleach and burn the leaves.
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When growing cast iron plants outdoors, place them in a shady area with indirect sunlight.
Soil
These hardy plants tolerate awide range of soils, as long as they have good drainage.
They prefer organically rich soil with a slightly acidic to neutral soil pH.
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Outdoors, they can grow in sandy, loamy, and even clay soils.
For container plants, simplybuy a standard quality potting mix.
Water
Be cautious of overwatering cast iron plants.
The Spruce / Kara Riley
allowing the excess water to drain from the pot’s drainage holes.
Temperature and Humidity
Cast iron plants prefer temperatures between 60F and 75F.
They are not hardy to cold, and temperatures that drop below 50F can damage or kill them.
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It’s not necessary to fertilize during the fall and winter months.
Only apply fertilizer after watering the plant to avoid burning the roots.
As houseplants, however, they are susceptible tocommon houseplant pests, including mites and scale.
Rinsing the foliage can help to dislodge the pests and control a minor infestation.
For more severe infestations, consider an insecticidal soap or horticultural oil.
As far as diseases go, the main one to watch out for isroot rot.
This is usually only a problem for cast iron plants that are grown in containersboth indoors or outdoors.
Root rot often results from overwatering and improper drainage (i.e.
no drainage holes in the pot or overly dense soil).
Watch out for mushy stems and roots which are an indication your plant is suffering from root rot.
But some common issues can arise when the environment isn’t to their liking.
Also, ensure that excess water can drain out of the container.
Drafts indoors, especially from air-conditioning vents, and cold temperatures outdoors also can cause browning foliage.
confirm your plant is protected from temperature extremes.
Drooping Leaves
A cast iron plant’s leaves may droop if it is too dry.
These tropical plants do best in medium to bright light conditions but can tolerate low light as well.
Avoid direct sunlight, which will burn the leaves.
Good news pet parents: cast iron plants are considered non-toxic to both pets and humans.
Try placing the plant in a north-facing window for the best light that isn’t too direct.
Pet Safe Plants: Flora and Fauna Can Coexist!Pet Poison Helpline.
