Eulychina castanea ‘Spiralis’

unicorn horn
Unique columnar green cactus grows in several unique forms, all of which look like living sculptures.
height 4–7ft
width 1–2ft
tolerates Heat, Pots
water
needs		 Low
water
info		 Allow this plant to go completely dry between waterings, year round.
hardy
to		 29F
exposure Full Sun
indoor
outdoor		 Outdoor
drainage In Ground: Cactus Mix, In Pots: Cactus Mix, Requires Perfect Drainage
fertilizing All Purpose
origin Chile
california
native		 No
sunset
zones		 13, 22–24

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

Every Eulychina castanea Spiralis is a clone from one unusual plant, presenting four different growth forms.
Each new branch will have its own form, the most common of which is a bumpy monstrous surface. The second most common form is of stacks of balls, each with a cleanly divided layer of spines between them. The third form, even less common, has a perfect spiral of spines running up the stem. The final, very rare form is a crested form. It is possible to have a mix of forms on one plant, or even one stem.