Complete Guide To String of Fishhooks Care and Growth

Best Light for String of Fishhooks

String of Fishhooks thrives in bright, indirect light with a touch of gentle morning sun. It is more tolerant of varying light conditions than some of its pickier cousins (looking at you, String of Pearls), but it still needs consistent brightness to stay compact and healthy.

An east-facing window is the perfect home for this plant. The soft morning sun gives it the energy boost it needs without the scorching intensity of afternoon rays. South and west-facing windows work beautifully too, as long as you set the plant a foot or two back from the glass or filter the harshest light with a sheer curtain.

One thing that trips up a lot of people: the top of the pot needs light just as much as the trailing vines. If you hang your Fishhooks high in a window where only the cascading strands catch the light and the crown sits in shadow, the base of the plant will gradually thin out and go bald. This is a common problem with all hanging succulents, from String of Hearts to String of Turtles.

Signs of Incorrect Lighting for String of Fishhooks

• Too Much Direct Sun: The leaves will develop brown, crispy patches (sunburn). They may also appear bleached out or washed in color.
• Too Little Light: The stems will stretch out with large gaps between the hooks, a condition called etiolation or leggy growth. The leaves become smaller, and the plant loses its dense, lush cascade.
• Best Spots: East-facing window, or 1-2 feet from a south/west-facing window.
• Avoid: Dark corners, north-facing windows with no supplemental light, and intense afternoon sun directly on the glass.

The Soak and Dry Method

Like most succulents, the String of Fishhooks stores water inside its curved, fleshy hooks. This built-in reservoir makes it far more tolerant of drought than of regular watering. The golden rule is simple: let the soil dry out completely between waterings, then give it a thorough soak.

When it is time to water, drench the soil until water flows freely from the drainage holes. Then, leave it alone. Do not water again until the soil is dry all the way through the pot. In the growing season (spring and summer), this might be every 7-10 days. In winter, it could stretch to every 3-4 weeks or even less frequently.

A really handy trick is to watch the hooks themselves. When the plant is properly hydrated, the little hooks are firm, plump, and tightly curled. When it starts getting thirsty, they flatten out slightly and lose some of their turgidity. That gentle softening is your cue to water. Learning to read the leaves is far more reliable than following any calendar schedule.

Bottom Watering for String of Fishhooks

Bottom watering is an excellent technique for this plant, particularly as it matures and the crown becomes dense with tangled stems. It prevents water from pooling on the tightly packed stems at the soil line, which is the fastest way to invite rot.

1. Place the pot in a sink or basin with a few inches of room-temperature water.
2. Let it sit for 15-20 minutes, allowing the soil to absorb moisture through the drainage holes.
3. Once the top of the soil feels damp, remove it and let it drain completely.

This method keeps the foliage dry while making sure the roots get a thorough drink.

Signs of Watering Problems

• Overwatering: The hooks turn mushy, translucent, or yellowish. The stems near the soil may become soft and dark. This is the beginning of root rot and needs immediate attention.
• Underwatering: The hook-shaped leaves look deflated, flat, and sometimes wrinkled. The soil will be bone dry. A thorough watering will usually perk the plant up within a day or two.

Why Drainage Matters for String of Fishhooks

String of Fishhooks absolutely needs fast-draining soil. If water lingers around the roots for too long, rot sets in quickly and a rotted root system means a dead plant. Standard potting soil from the garden center is almost always too dense and moisture-retentive on its own.

The best starting point is a commercial cactus and succulent mix. These blends are formulated to be gritty and drain quickly. For a deeper look at why this matters, our Soil and Potting Mix Guide covers the fundamentals of drainage and aeration.

DIY Fast-Draining Mix for String of Fishhooks

If you want to make your own mix (which I genuinely recommend for the best results), here is a reliable recipe:

• 2 parts standard potting soil
• 1 part perlite or pumice
• 1 part coarse sand

This creates a blend that retains just enough moisture for the shallow roots to absorb what they need but drains fast enough to prevent the soggy conditions that cause rot. The perlite or pumice keeps things airy and oxygenated down at the root level.

A Light Feeder That Doesn't Need Much

String of Fishhooks is not a heavy feeder. In fact, over-fertilizing can do more harm than good. Too much fertilizer leads to soft, weak, leggy growth and can burn the delicate roots.

• Growing Season (Spring and Summer): Feed once a month with a balanced liquid fertilizer diluted to half the recommended strength. A cactus/succulent-specific formula works just as well. For general tips on plant nutrition, check out our Fertilizing Guide.
• Dormant Season (Fall and Winter): Stop fertilizing entirely. The plant is resting and does not need the extra nutrients during this time.

Always apply fertilizer to damp soil, never bone-dry roots. Pouring fertilizer solution onto dry roots can cause chemical burn.

Comfortable in Your Home

This plant is happy in the same temperatures that most people find comfortable. It is a South African native, so it enjoys warmth and has no tolerance for frost.

• Ideal Range: 65-80°F (18-27°C).
• Winter Tolerance: It can handle cooler temperatures down to about 50°F (10°C) during its winter rest period. A cool, dry winter can actually encourage blooming in the spring.
• Avoid: Cold drafts from windows and doors, as well as hot blasts from heaters and radiators. Sudden temperature swings are more harmful than a consistently cool room.

Dry Air is Perfectly Fine

Unlike many tropical houseplants, the String of Fishhooks does not need high humidity. It evolved in dry, arid conditions and is perfectly content with the low to average humidity found in most homes (30-50%).

You do not need to mist this plant, set up a pebble tray, or run a humidifier near it. In fact, high humidity combined with poor air circulation can actually encourage fungal problems and stem rot. If you live in a humid climate, just make sure there is decent airflow around the plant. For more on managing humidity for your collection, check out our Humidity Guide.

Small Flowers With a Spicy Surprise

Yes, String of Fishhooks does bloom! When a mature, happy plant flowers, it produces small, white puffball-like flowers along the stems. These blooms share the same lovely warm fragrance found across the Senecio family, a spicy scent that many people compare to cinnamon or cloves. It is subtle but genuinely delightful when you catch a whiff.

Blooming is most commonly triggered by a cool, dry rest period in winter (around 50-60°F / 10-15°C with very little water) followed by the longer days and warmer temperatures of spring. The flowers are a fun bonus, but don't worry if your plant never blooms indoors. It is primarily grown for those incredible trailing hooks, and the flowers take a lot of energy for the plant to produce.

String of Fishhooks vs. String of Bananas

The question that comes up constantly: how is this different from a String of Bananas? They share the same species name (Senecio radicans), so the confusion is understandable. Here is how to tell them apart:

• Leaf Shape: String of Fishhooks has noticeably tighter, more sharply curved leaves that look like tiny hooks or crescent moons. String of Bananas has wider, plumper leaves with a more rounded banana-like shape.
• Overall Texture: Fishhooks creates a finer, more delicate cascade. Bananas has a slightly chunkier, bolder look.
• Growth Rate: Both are fast growers, but Bananas tends to push out slightly thicker stems overall.
• "Windows": Both have translucent epidermal windows on their leaves. On the Fishhooks form, the stripe runs along the tighter curve.

If you look at a Fishhook leaf and a Banana leaf side by side, the difference is clear. The hook is narrow, sharp, and curled almost into a "C" shape. The banana is wider, flatter, and has less curvature.

Other Trailing Succulents in the Family

The world of "String" plants is wonderfully diverse. Here are some popular relatives and lookalikes worth exploring:

• String of Pearls (Curio rowleyanus): Perfectly round, bead-like leaves. A classic, but slightly more finicky about watering.
• String of Dolphins (Senecio peregrinus): A stunning hybrid with leaves that look like tiny jumping dolphins. A collector's favorite.
• String of Tears (Curio herreanus): Features teardrop-shaped leaves. Another easy-care relative.
• Wax Ivy (Senecio macroglossus): A fellow Senecio with ivy-shaped waxy leaves and yellow daisy flowers. Different look, similar care.
• Burro's Tail (Sedum morganianum): A Crassulaceae trailing succulent with thick, rope-like strands of plump, teardrop-shaped leaves. Pet-safe and incredibly easy to propagate from fallen leaves.

Shallow Roots, Shallow Pot

String of Fishhooks has a shallow root system and does not need a deep pot. In fact, a pot that is too deep is risky because the extra soil at the bottom stays wet for far too long, creating a breeding ground for rot.

• Pot Type: A shallow, wide pot (sometimes called a "bulb pan") is ideal. Always choose a pot with drainage holes. Terracotta is a top choice because the porous clay wicks moisture away from the soil, helping it dry out faster.
• Frequency: Repot every 2-3 years, or when the plant has completely filled its current container. It does not mind being slightly root-bound.
• How to Repot: Choose a new pot that is only 1 inch wider in diameter. Be gentle with the trailing stems to avoid snapping them. After repotting, wait 2-3 days before watering to let any broken roots heal. For a step-by-step walkthrough, our Repotting Guide covers the process in detail.

Trim for Fullness

Pruning is one of the best things you can do for a String of Fishhooks. It keeps the plant from getting too leggy, encourages branching from the crown, and promotes a much fuller, bushier look overall.

• Why Prune: To control the length of the strands, remove dead or dying stems, and encourage new growth from the base.
• How to Prune: Use clean, sharp scissors or plant snips. Trim any strand to whatever length you like. The plant will typically branch from the cut point, sending out two or more new stems.
• The Golden Rule: Never throw away your cuttings! Every piece you prune is a free new plant waiting to happen. Use them for propagation.

One of the Easiest Succulents to Propagate

Propagation is where the String of Fishhooks really shines. It roots so easily and so quickly that you can turn a single plant into a dozen in no time. This is also the best way to fill in a bare, thinning crown and make the mother plant look lush. For more general tips on multiplying succulents, see our Succulent Propagation Guide.

Soil Propagation (Recommended)

This is the simplest and most reliable method. It also allows you to propagate directly into the parent plant's pot for instant fullness.

1. Take Cuttings: Snip several healthy stems, each about 4-5 inches long, using clean scissors.
2. Prepare the Cut End: Strip the hooks from the bottom 1-2 inches of each cutting, leaving a bare stem.
3. Let Them Callous: Set the cuttings aside for 1-2 days in a dry spot to let the cut ends dry and form a thin callous. This helps prevent rot.
4. Plant or Lay on Soil: You can either stick the bare end into moist succulent soil, or lay the entire cutting flat on top of the soil. If laying flat, gently pin down the nodes (the small bumps where leaves meet the stem) against the soil with a hairpin or paperclip.
5. Light Misting: Place in bright, indirect light. Keep the soil just barely moist with light misting every few days. Do not saturate the soil.
6. Rooting: Roots will form from the nodes within 2-3 weeks. Once rooted, gradually transition to the standard "soak and dry" watering method.

Water Propagation

This method is fun because you can watch the roots develop in real time.

1. Prepare Cuttings: Take 4-5 inch cuttings and remove the hooks from the bottom 1-2 inches.
2. Place in Water: Submerge only the bare stem in a small jar of clean water. Make sure no leaves are sitting in the water, as they will rot.
3. Bright Spot: Place the jar in a bright location and change the water every 3-4 days.
4. Transplant: Roots will appear in about 2-3 weeks. Once they are roughly an inch long, transplant the cuttings into well-draining succulent soil. Keep the soil a bit more moist than usual for the first week to help the roots transition from water to soil.

Common Pests to Watch For

String of Fishhooks is not particularly pest-prone, but it can attract the usual suspects, especially if conditions are off or the plant is stressed.

• Mealybugs: These white, cottony pests love to hide at the base of the hooks and in the dense crown of the plant. Check the soil line regularly.
• Aphids: Small, soft-bodied insects that tend to cluster on new growth and any flower buds.
• Spider Mites: Tiny, nearly invisible mites that cause fine webbing between stems. They thrive in dry, warm conditions with poor airflow.

If you spot any of these, isolate the plant immediately. For small infestations, dab individual pests with a cotton swab soaked in rubbing alcohol. For larger outbreaks, treat the entire plant with insecticidal soap or a diluted neem oil spray. Repeat treatment weekly for 3-4 weeks to catch newly hatched pests.

Troubleshooting Your String of Fishhooks

Most issues with this plant come down to watering or lighting. Here is a quick diagnostic guide.

• Root Rot: The #1 killer. Caused by overwatering or soil that stays too wet. Signs include mushy, blackened stems at the base and yellowing leaves that fall off easily. If caught early, you can save the plant by taking healthy cuttings from the unaffected parts and re-rooting them in fresh, dry soil.

Showcasing the Cascade

The String of Fishhooks is all about the trail. The best way to display it is to give those strands room to cascade freely.

• Hanging Baskets: The classic choice. Hang it from a ceiling hook or wall bracket near a bright window. As the strands grow, they create a beautiful living curtain of tiny green hooks.
• High Shelves: Place it on the edge of a tall bookshelf or the top of a cabinet. Let the stems spill over the edge for a dramatic waterfall effect.
• Mixed Succulent Arrangements: Use it as the "spiller" element in a container garden with upright succulents like a Jade Plant or Aloe Vera. Its fine texture adds movement and dimension.
• Windowsill Trailing: A full pot on a bright windowsill, where the strands can trail down the wall, is simple but very effective.

Because String of Fishhooks has a finer leaf texture than its cousin the String of Bananas, it creates a more delicate, airy cascade that pairs beautifully with bolder, structural plants.

Is String of Fishhooks toxic to cats and dogs?

Yes, String of Fishhooks is mildly toxic to pets and humans if ingested. It can cause gastrointestinal symptoms like vomiting, diarrhea, and drooling. The sap may also irritate your skin. Keep it out of reach of curious pets and children by hanging it high or placing it on an elevated shelf.

What is the difference between String of Fishhooks and String of Bananas?

They are technically the same species, Senecio radicans, but String of Fishhooks is a cultivar with leaves that curl much more tightly into a distinct hook or crescent shape. String of Bananas has wider, plumper leaves that resemble tiny bananas. Care for both is identical, but the Fishhooks form tends to have a finer, more delicate trailing appearance.

Why is my String of Fishhooks shriveling?

Shriveled or deflated hooks are the plant's way of signaling thirst. Check the soil first. If it is bone dry, give it a thorough soak and the leaves should plump back up within a day or two. However, shriveling can also happen when roots have rotted from overwatering and can no longer absorb water. If the soil is damp and the leaves are still shrinking, check the roots for rot.

How fast does String of Fishhooks grow?

In good conditions with bright light and proper watering, String of Fishhooks is one of the faster-growing trailing succulents. It can easily put on several inches of new growth per month during spring and summer. This makes it noticeably quicker than its cousin, the String of Pearls.

Can String of Fishhooks grow outdoors?

Yes, in USDA hardiness zones 10-12, it can grow outdoors year-round as a ground cover or trailing from containers. In cooler climates, you can move it outside during the warm summer months but must bring it indoors before temperatures drop below 50F (10C).

How do I make my String of Fishhooks fuller?

The secret to a full, lush plant is to prune the longer strands and lay the cuttings back onto the soil in the same pot. They will root at the nodes and create new growth points, filling in any bare spots at the crown. Ensuring the top of the pot gets plenty of bright light is also essential to keeping a dense base.

Why Are the Leaves Hook-Shaped?

The tightly curved, hook-like shape of Senecio radicans 'Fish Hooks' leaves is not just a fun coincidence. It is an evolutionary adaptation to the dry, sun-blasted conditions of its South African homeland. Each hook is essentially a miniature water bank, storing moisture for dry spells. The tight curvature increases the internal volume of the leaf while minimizing the surface area exposed to the sun, which reduces water loss through evaporation even more effectively than a broader-leaved form.

If you look closely at each hook, you will notice a thin, translucent stripe running along its concave side. This is called an epidermal window. Just like the windows on its cousin the String of Pearls, these clear sections allow sunlight to penetrate deep into the interior of the leaf where the chlorophyll cells are densely packed. It is a wonderfully clever way to photosynthesize efficiently while keeping most of the leaf's surface opaque and protected from the intense desert sun.

The tighter curvature of the Fishhooks form compared to the standard Banana form may represent an even more extreme adaptation to dry, exposed conditions, where minimizing leaf surface area is the highest priority. So the next time you admire those curvy little hooks, remember that each one is a miniature water-storage tank with its own built-in solar panel system.