Please note: This is a pre-order from our partner lab, please allow up to 14 working days to receive the plant. The plant will arrive in a single package as per the image and will be fresh out of flask. Please read the section on how to acclimate TC before purchasing. With variegated plants there is some variability in the first leaves, please see the images as examples of what you will receive. Devil is a cultivar that develops its variegation with maturity. The plants shipped will be the highest variegation selections from each flask.

Monstera 'Devil Monster' is a rare and highly sought-after sport of Monstera deliciosa large form that originated in Thailand, that first got famous selling for $40,000! It is distinguished by a unique combination of deep fenestrations and a specific leaf structure that typically features only one row of inner fenestrations. Unlike standard variegated varieties, this cultivar is a one-of-a-kind mutation that displays consistent and stable characteristics across all its foliage.

The foliage features a striking "mint" type variegation, characterised by white to creamy-white sectors interspersed with thin green veining and splashy green patches throughout the leaf blade. New leaves emerge with this intricate, high-contrast pattern, which is maintained as the plant matures. Due to its robust large-form genetics and the stability of its variegation, Monstera 'Devil Monster' makes it perfect for growing indoors as a significant architectural specimen for enthusiasts of ultra-rare tropical plants.

Native to: A cultivated sport variety of Monstera deliciosa first identified and developed in Thailand; the base species is native to the tropical rainforests of Mexico and Central America.

Water: Keep the substrate evenly moist but ensure it is never waterlogged. Allow the top 1/3 of the pot to dry out before rewatering. Providing a very airy, chunky substrate with excellent drainage is essential to prevent root rot in these high-value specimens.

Light: Prefers bright filtered light to maintain the intensity of its white and mint-green variegation. Avoid direct midday sun, which can easily scorch the variegated sections of the leaves. In lower light conditions, the variegation may appear less vibrant and growth will slow.

Humidity: Requires high humidity, ideally consistently above 70%. These tropical plants thrive in moist air, which helps the large leaves unfurl without tearing and prevents the variegated margins from browning.

Temperature: Maintain stable indoor temperatures between 18–27 °C. Protect the plant from sudden cold drafts or hot, dry air from radiators. It should not be exposed to temperatures below 15 °C, as cold stress can damage the foliage and impede growth.

How to Succeed with TC Plants

1. The Clean-Up (Crucial Step)

Once you remove the plantlets from the package, you must wash off the plant so it's completely clean

• Why: Sometimes the plantlets have Agar left on them. Agar is sugar-rich; if left on the roots, it acts as an all-you-can-eat buffet for mold and bacteria.

• How: Use sterile lukewarm water and a soft brush or your fingers. Be gentle—TC roots are brittle.

2. The "Hardening Off" Environment

You need to recreate the flask's humidity while slowly introducing airflow.

• The Medium: Use a sterile, airy mix. A blend of fine moss and perlite or small-grade tree fern fiber works best. Avoid heavy potting soil for now.

• The Enclosure: Place the potted plantlets in a humidity dome, a clear plastic bin, or even a Ziploc bag.

• The Light: Keep them in bright, indirect light. No direct sun—they will cook inside their humidity chamber.

3. The Gradual Introduction

Over the next 2 to 4 weeks, you will slowly lower the humidity:

• Week 1: Keep the dome completely sealed.

• Week 2: Open the vents slightly or crack the lid for 30 minutes a day.

• Week 3: Increase the "open lid" time to several hours.

• Week 4: If the leaves aren't wilting, you can leave the lid off entirely.

4. Pro-Tips for Success

• Fungicide: A quick dip in a diluted, systemic fungicide before planting can prevent "damping off" (sudden rot).

• Hands Off: Resist the urge to tug on them to check for root growth. TC plants focus on root establishment first; if the top looks stagnant, the bottom is likely working hard.

• No Fertilizer: The plantlets are stressed. Wait until you see the first "post-flask" leaf emerge before using a very diluted (1/4 strength) fertilizer.