Moon Cactus

Moon Cactus

$139
$177 $139
21% OFF
Size: Size Guide
Planter: Style Guide
Color: Black

Grows Well With

Moisture Meter Moisture Meter
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The Moon Cactus is a vibrant, eye-catching houseplant with a colorful top grafted onto a green base. Available in shades of pink, orange, or yellow, it adds a fun pop of color to any space. This compact, low-maintenance plant thrives in bright, indirect light and needs only occasional watering. Choose your favorite color or grab all three!

  • Each plant is unique; size and shape fluctuate by season so all measurements are shown as a range
  • Small plants measure 4-5" tall from the soil line to the top of the foliage
  • Arrives in a nursery grow pot nestled in your planter choice, if purchased

Care Guide

Moon Cactus South America
Plant Care
  • Thrives in bright direct light, but can tolerate bright indirect light.
  • Water every 1-2 weeks in direct light, allowing soil to dry out between waterings. Expect to water more often in brighter light and less often in lower light.
  • This is a pet friendly plant.
  • The Moon Cactus is actually two cacti in one! The bright, colorful top (Gymnocalycium mihanovichii) is grafted onto a green base cactus because it doesn’t have chlorophyll and can’t make its own food. By attaching it to a green cactus, which can photosynthesize, the top gets the support it needs to survive and thrive.
Sad Plant Signs

Wrinkled, dry potting mix:

Thirsty plant, underwatered

Blanched center: 

Needs more sunlight

Yellowing and mushy stem, wet potting mix: 

Root rot, overwatered

Our Guarantee

Your plants will arrive in happy, healthy condition—guaranteed. If not, we replace them for free.

Simply reach out to us with a photo within 30 days of receiving your order. Learn More About Guarantee.

Shipping & Returns

We offer free standard shipping on all orders $79+. Orders under $79 ship for a flat $15 fee. View our full shipping policy.

Sending a Gift?

First, lucky them! Second, in the cart, before checkout, you’ll find an option to add a gift note. You can rest assured that all orders are shipped without pricing information and include directions on how to access our digital Care Library for plant care instructions.

You can also let your gift recipient know something is on the way from yours truly by filling out this form – also linked in your order confirmation email. (Don’t worry, we won’t spoil what the surprise is or send them any marketing emails.)

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Plant Care Help: Virtual Plant Appointment

From plant-specific care, to repotting tips and tricks, to pest identification—we’re here to help. Chat directly via video with a knowledgeable houseplant expert from The Sill team. We’ll kick off your appointment with a quick environmental assessment of your space, then dive into your care questions and concerns. Appointment windows are available Monday through Friday between the hours of 9am and 5pm, and are subject to our plant expert’s availability.

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