

Rubrum
Also known as
purple false eranthemum
Taxonomy
Pseuderanthemum atropurpureum
Pseuderanthemum
Acanthaceae
Lamiales

How to care for Rubrum
How often to water your Rubrum

every 9
Rubrum needs 0.5 cups of water every 9 when it doesn’t get direct sunlight and is potted in a 5" pot.
Use our water calculator to personalize watering recommendations to your environment or download Greg for more advanced recommendations for all of your plants.
Water 0.5 cups every
9
Finding light for Rubrum in your home

a window
Rubrum may have difficulty thriving, and will drop leaves 🍃, without ample sunlight.
Place it less than 3 feet from a south-facing window to maximize the potential for growth.
Select your region to see how the current weather in your area affects the placement of Rubrum in your home 🏡.
How to fertilize Rubrum

Most potting soils come with ample nutrients which plants use to produce new growth.
By the time your plant has depleted the nutrients in its soil it’s likely grown enough to need a larger pot anyway.
To replenish this plant's nutrients, repot your Rubrum after it doubles in size or once a year—whichever comes first.
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I have to “fertilize” my plant in 6 days, not sure how the process of doing that is, can someone please share some tips? Thank you. #BlackVarnishEranthemum
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My #VariegatedFalseEranthemum gave me some fresh blooms today!!😁😢 . . . . . . . . . . . . . . . . . . . . #happyplants #plantsmakepeoplehappy #plantaddict #newgrowth #newplantmom #freshleaffriday #proudplantmommoment #plantcorner #rareplants
Care Summary for Rubrum
Rubrum
Greg recommends:

0.5 cups every 9 days

< 3ft from a window

Repot after 2x growth
Based on the 4” pot your plant is in, and that it doesn’t get direct sunlight.
