Plant Care Thorn Skeletonweed

Thorn Skeletonweed

Also known as

thorny skeleton-weed


Pleiacanthus spinosus

How to care for Thorn Skeletonweed


How often to water your Thorn Skeletonweed

Water needs for Thorn Skeletonweed
0.5 cups
every 9

Thorn Skeletonweed 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

Does your plant get direct sunlight?

Select the pot size


Check the growing potential in your area

A plant's growing potential is determined from its location, the time of year, and current local weather.

Select a city to check sunlight intensity

Finding light for Thorn Skeletonweed in your home

Light needs and placement for plant Thorn Skeletonweed: 3ft from a window
3ft or less from
a window

Thorn Skeletonweed 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 Thorn Skeletonweed in your home 🏡.


How to fertilize Thorn Skeletonweed

Nutrient, fertilizer, and repotting needs for Thorn Skeletonweed: repot after 2X growth

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 Thorn Skeletonweed after it doubles in size or once a year—whichever comes first.

Care Summary for Thorn Skeletonweed

Thorn Skeletonweed

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.

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