Ferocactus glaucescens f. inermis

nude blue barrel cactus
An almost spineless form of Ferocactus. Ice blue and prone to pupping. Pale yellow flowers with hints of red encircle the crown. Gritty mix.
height 1–3ft
width 1–3ft
tolerates Cold, Drought, Heat, Pots, Rooftops, Neglect, Wind
water
needs		 Lowest
water
info		 Most cactus are from the deserts of the world and as such like to go totally bone dry between waterings, making them very low-maintenance. If you see your cactus begin to shrivel or lose firmness, your cactus is likely totally dry and should be watered. To get good healthy growth your plant doesn’t want to sit around totally dried out during it’s growing season. Once it is dry water it.

This cactus comes from an area with summer rainfall and is actively growing during that time, when it is forgiving of overwatering errors. During winter dormancy it should be kept extra dry and will be intolerant of overwatering.

Remember that if kept in a small pot your plant will want more frequent watering.
hardy
to		 16F
exposure Part Shade – Full Sun
indoor
outdoor		 Outdoor
drainage In Ground: Cactus Mix, In Pots: Cactus Mix, Tolerates Sandy Soil
fertilizing All Purpose
origin C Mexico
california
native		 Yes
sunset
zones		 13–24

Sunset Zones Map

Outdoor Exposure Guide

OUTDOOR EXPOSURE GUIDE

Full Sun
Six or more hours of sun beams directly landing on the plant's leaves.

Part Shade
Three to five hours of sun beams directly landing on the plant's leaves.

Part Sun
One to two hours of sun beams directly landing on the plants leaves.

Full Shade
The plant is never fully lit by sun beams, but is in a bright spot or has dappled sunbeams playing over the leaves throughout the day.

Deep Shade
The plant never has dappled light on the leaves, and is in a place that feels dim, even on a nice sunny day.

SUNSET ZONES MAP

Growing Notes

When planting cactus it’s often best to avoid the spines entirely. This can be done by cutting down each side of the nursery can and then peeling it open to expose the roots. This way you can hold the root ball while planting and you never need to touch the cactus. If the plant is tall and top-heavy, this often isn’t an option. Wrapping such cactus in cardboard makes them more manageable.
While your cactus is out of the nursery can, but before it is planted, is the easiest time to weed right up near the lowest spines. Be sure to pull weeds early with heavily spined cactus, as once they are established they can be difficult to remove.

Special Interest

Globose cactus (those with spherical stems) are low and wide, looking best in squat pots or even bowls.

Globose cactus require no pruning.

These cactus are difficult to propagate, unless they send off pups, which can be removed, dried for two weeks and then planted in a fast-draining cactus mix.