Houseplant · Crassulaceae
Burro's Tail
Sedum morganianum
Under generous sun and above gravelly, bone-dry soil, those beaded blue-green tails keep lengthening season after season.
Full sun
Every 14–30 days
50–77°F · 10–25°C
USDA 10–11
Overview
Burro's tail takes its name from the thick, rope-like stems that drape over a pot's rim like a swishing tail, each one sheathed in rows of overlapping leaves. The plant hails from southern Mexico and Honduras, gripping rocky slopes, and that highland origin spells out exactly how it wants to be grown. Its blue-green leaves swell into firm, glossy beads that are brimming with stored water, which lets the plant ride out dry stretches that would wither a thirstier houseplant.
The very thing that makes it gorgeous also makes it touchy to live beside. The tightly shingled beads hang on by only the faintest grip and burst off at the gentlest contact, so a hanging basket set clear of the daily shuffle suits it best. Grown well, one plant can spill its tails to several feet, and come summer it may cap those stems with tiny pink to red flowers, though that display rarely turns up indoors.
The relief is that it demands next to nothing. Strong light, a pot that drains in a flash, and a long pause between drinks keep it thriving, and the single greatest danger is kindness poured on as too much water. Keep it lean and let it be, and the beaded stems repay you for years.
Care
The short version: set it in the brightest spot you have, pot it in a gritty cactus mix, and water only after the soil has nearly dried out, easing off even more through winter so rot never takes hold.
Light
Burro's tail craves bright light to full sun, the most luminous corner you can spare. A sunny windowsill packs the beads tight along the stem, while a shaded nook draws them apart, thin and faded. Should you shift it into harsher sun, ease it across a week or so to keep the leaves from scorching.
Water
Water it sparingly, only after the mix has nearly baked dry, which often falls around once a month indoors. Each swollen bead holds its own private reserve, so when you waver, wait. Pull back further in winter, since wet soil in the cold is the swiftest road to rot.
Soil
Settle it into a gritty, fast-draining cactus or succulent mix, ideally cut with extra perlite. A pH anywhere from 6.0 to 7.5 sits fine with it. The thing that counts most is water sluicing straight through instead of pooling around the roots.
Temperature
It sits easy between 50°F and 77°F (10°C to 25°C), plain room range. It can weather a short dip toward 40°F (4°C), but carry it inside ahead of any frost, which it cannot live through.
Humidity
This is a low-humidity plant entirely at ease in dry indoor air, so there's no figure to chase and no misting to bother with. Damp, still air does it no good and only opens the door to rot.
Feeding
Feed it rarely, only once or twice over the spring-to-summer growing season, with a balanced or dilute liquid fertilizer. It grows spare by nature, and a heavy hand harms more than it helps.
Pruning
It calls for little to no pruning. Clip back any leggy or overlong stems simply to neaten the trailing tails, and go gently, since the stems snap and the beads scatter at a touch.
Repotting
Repot it only once the plant has wholly filled its pot, which won't come around often. The giveaways are roots crowding the container and growth that stalls or looks cramped. Disturb it as little as you can during the move so the beads stay put.
Size & spacing
The trailing stems can run 2 to 4 feet (60 to 120 cm) long and fan out 1 to 3 feet (30 to 90 cm) across. A hanging basket lets those beaded tails pour down freely and keeps them clear of passing elbows.
Troubleshooting
Nearly every trouble with burro's tail circles back to one of two roots: water given too freely, or light given too sparingly. Catch the early signs laid out below and you can usually correct the cause before the beaded stems pay for it.
Squishy stems and glassy, water-logged leaves
When the firm plump beads go soft and see-through and the stems turn squishy, you are looking at rot, nearly always from water lingering at the roots. Hold off watering right away and let the mix bake dry, then trim out every soft, darkened section before it travels further. If the base has gone, slice off the firm green tips and root them, and switch to a gritty mix that pours water through and water far less through winter.
Fix:
- Stop watering and allow the soil to dry out
- Remove rotted portions and repot into gritty, fast-draining mix
- Propagate healthy stem tips if the base is lost
Cotton-like white fluff nestled in the leaf axils
The fluffy white specks lodged in the tight crooks where leaf meets stem are mealybugs, sap-feeders that often trail a sticky glaze behind them. Press a cotton swab soaked in rubbing alcohol onto each one, set the plant apart from your others, and repeat until the tufts stop returning. Look over any new succulent before it lands on the shelf, and never leave plants sodden or packed close together.
Fix:
- Dab insects with a cotton swab dipped in alcohol
- Isolate the plant and repeat treatment until clear
Beaded leaves shattering loose at the lightest touch
Each fat little bead of a leaf clings to the stem by the slightest grip, so one careless brush against the trailing tails sends them scattering down. That fragile attachment is simply part of the plant's design, not a fault. Park it somewhere out of arm's reach, lift the pot rather than the stems, and tuck the fallen beads onto the soil where they sprout fresh plants at no cost.
Fix:
- Place the plant where it will not be brushed against or knocked by passing traffic
- Handle by the pot rather than the stems
- Pot or scatter dropped leaves on soil, where they readily root into new plants
Pale, sparse beads strung far apart on elongating stems
When the once tightly packed beads spread apart along thin, washed-out stems, the plant is straining toward light it can't reach, a condition called etiolation. Shift it to a brighter window with bright light to full sun, but ease the change across a week or two so the leaves don't burn. A sunny sill keeps each trailing stem dense and tightly clad.
Fix:
- Move to a brighter spot with bright light to full sun
- Acclimate gradually to stronger light to avoid scorching
Toxicity
Welcome news for a pet home: burro's tail is safe around animals and children. The ASPCA marks it non-toxic to cats, dogs, and horses, and its plump leaves hold no harmful compounds. A curious nibble might stir a passing upset stomach, as most plants can, but nothing graver.
Safe for
People · Cats · Dogs · Horses · Rabbits · Livestock · Birds
Cats None
Cats land on the ASPCA safe list for this one. A nibbled bead or two might draw a little drool or a passing queasy spell, and that is the worst of it.
Dogs None
Dogs are clear as well, since the plant holds no toxic compounds. A pup that gnaws a dangling tail may end up with brief, harmless tummy trouble and nothing more.
Horses None
Horses get the ASPCA all-clear too, so a grazed mouthful of the fleshy stems carries no real threat.
Rabbits Safe
With no toxins in the tissue, a rabbit takes no harm from a taste, though those plump, water-filled beads suit an occasional treat better than a daily green.
Livestock Safe
Goats, sheep, and cattle can chew a stem without ill effect. Kept as a houseplant, it seldom ends up within their reach anyway.
Birds Safe
Pet birds come to no harm near it, and a pecked bead holds no poison. Those brittle stems shed their leaves long before much can be swallowed.
People Safe
Nothing in the plant is toxic to people, so a child who tries a dropped bead is perfectly safe. It is no food crop, though, so let it stay on the windowsill.
Varieties
Burro's tail keeps one close cousin worth a mention, a more compact form that grips its beads tighter and grows just as willingly.
Sedum morganianum 'Burrito' (baby burro's tail)
Wears shorter, rounder beads pressed more snugly along the stem than the species, and grips them far more tightly, which is why it stands up to handling much better.
How to propagate
Few plants give back this freely. Every bead that drops and every stem you trim can root into a whole new plant, so you'll never run short of copies to pot up or hand off.
Stem cuttingsEasy
Growing season (spring to summer) · Several weeks to a few months to root well
A stem cutting is the fastest path to a full, trailing plant. Snip healthy tips through the spring-to-summer growing season, set the cut ends aside to callus for a day or two, then rest them on or nudge them into a gritty mix. Roots form over several weeks to a few months, quicker than coaxing growth from one lone bead.
Leaf cuttingsEasy
Growing season (spring to summer) · Several weeks to a few months, slower than stem cuttings
Each plump bead that tumbles loose is a fresh plant in waiting. Set the fallen leaves on the soil surface through the growing season and they push out roots and miniature plantlets unprompted. The trick is dependable, though it stretches across several weeks to a few months, slower than a stem cutting.
DivisionEasy
When repotting during the growing season · A few weeks to establish
After a tangled clump has crammed its pot, you can split it as you repot during the growing season. Each piece roots back down within a few weeks, turning one mass of trailing tails into two with hardly any effort.
Myths
A cat or dog that chews those juicy beads will be poisoned, so the plant has no place in a pet household.
The ASPCA lists Sedum morganianum as non-toxic to dogs, cats, and horses, so the trailing succulent belongs just fine in a pet home. A nibble might cause mild stomach upset, no different from chewing nearly any houseplant, yet nothing dangerous.
Those fat, water-filled beads shrivel fast unless the plant gets a drink every few days.
This is a drought-tolerant succulent that banks its water inside those swollen beads and prefers the soil to nearly dry out between drinks. Too much water is what kills it, turning roots and stems to mush, so when you hesitate, hold off.