Monkey Tail Cactus
The monkey tail cactus grows long, trailing, furry white stems that spill over the pot edge like a bundle of shaggy animal tails - then shocks everyone with bright scarlet flowers along them.
Last reviewed: October 2026
AI illustration Overview
The monkey tail cactus grows long, trailing, furry white stems that spill over the pot edge like a bundle of shaggy animal tails - then shocks everyone with bright scarlet flowers along them. Dramatic in a hanging pot and easier than it looks, it is one of the most striking trailing cacti you can grow.
Origin & Natural Habitat
Cleistocactus colademononis (the name literally means 'monkey's tail') grows on steep cliffs in the mountains of Bolivia, hanging from rock faces - which is why it trails so naturally from a basket.
Appearance
Soft, rope-like stems clothed in long, hair-like white spines, first upright then trailing to a metre or more, like shaggy white tails. Vivid scarlet flowers appear along the stems in spring and summer on established plants.
Why People Love It - Qualities & Benefits
People love the spectacle - the furry white tails, the length they reach, and the scarlet flowers against them. It is a guaranteed conversation piece in a hanging pot and surprisingly undemanding.
Care
Light
Bright light with some direct sun keeps the tails dense and furry and drives flowering - near a sunny window or hanging in a bright porch. Shade thins the coat and stretches the stems.
Watering
Water when the soil has dried out - slightly more generous than a desert cactus in summer, reflecting its cliff home, but never soggy. Keep much drier in a cool winter rest, which encourages the flowers.
Soil & Potting
A gritty, free-draining cactus mix in a hanging pot or basket with drainage. Good drainage protects the fleshy stems.
Humidity & Temperature
Tolerates ordinary room air well. Keep it above about 8-10°C, with a cooler, drier winter rest for bloom. Good airflow suits its cliff-hanging nature.
Feeding
A dilute cactus feed monthly through the growing season supports the long stems and flowering.
Repotting
Repot every couple of years in spring, handling the long tails gently - drape them over your arm or a towel. The hair-like spines are softer than they look but can still prickle.
What to Buy
| Product | Type | What the maker states | Links |
|---|---|---|---|
| Espoma Cactus! | Organic liquid plant food | For all cactus and succulents; 2 teaspoons per quart of water, every 2 to 4 weeks | See on Amazon · Maker's page |
| Espoma Organic Cactus Mix | Potting mix | For cactus, succulent, palm and citrus containers; processed forest products, sphagnum peat moss, perlite, humus and limestone, with mycorrhizae | See on Amazon · Maker's page |
How we put this together. The products are described from the maker's own pages, checked on 26 October 2026; we have not trialed them. There are no prices here: the Amazon links search for the exact product, and we may earn a commission if you buy through them.
Propagation
Easy from stem cuttings: cut a length of tail, callus it for a week, and lay or plant it in gritty mix to root. Whole detached tails root too.
Common Problems & Pests
Overwatering rot is the main danger. Mealybugs can hide in the fur. Thin, sparse coats and no flowers mean too little light. Long tails are brittle at the joints - site the pot where it won't be knocked.
Toxicity & Safety
Not on the ASPCA lists. The ASPCA Animal Poison Control Center's plant lists for cats and dogs have no entry for this plant, and we have no other checked source either way. If a pet chews it and seems unwell, call your vet or a pet poison helpline.
Pros & Cons
Pros: spectacular furry trailing stems, scarlet flowers, easier than it looks, great in hanging pots. Cons: tails snap if knocked, needs bright light for a dense coat, rots if kept wet.
Best Suited For
A show-stopper for a bright spot with room to hang - perfect for anyone who wants a cactus nobody else on the street has.
FAQ
Is the monkey tail cactus rare in the wild? Yes: it is endemic to Bolivia, on Cerro el Fraile in the Santa Cruz department, where it hangs from humid, steep rock faces below 1,500 m, and the IUCN lists it as Endangered. In cultivation it has the Royal Horticultural Society's Award of Garden Merit, and its stems can reach 2.5 m (Wikipedia).
How long do the tails get? A metre or more with age - give it hanging room.
Are the white hairs sharp? They're relatively soft for a cactus but can still prickle - handle gently.
Gear for growing monkey tail cactus
Links go to Amazon or a partner store (such as Adagio Teas) and may earn us a commission at no extra cost to you. As an Amazon Associate we earn from qualifying purchases. We link gear types, not sponsors' picks: you choose the exact product.