Othonna capensis trails its slender purple stems with bead-like leaves, earning its nickname as the string of pickles that spills gracefully over container edges. This South African succulent has become a favorite for hanging baskets and ground cover because it is forgiving, fast-growing, and visually striking. If you want a plant that thrives on neglect but rewards you with constant color, this is the one to try.
The plant is often confused with senecio rowleyanus (string of pearls), but the difference is clear once you see the elongated, pickle-shaped foliage. Othonna capensis is also known as ruby necklace due to the way its stems and leaves turn a deep burgundy when exposed to bright light. It is a member of the Asteraceae family, which means it produces small, daisy-like yellow flowers during the growing season.
You do not need a green thumb to keep this succulent alive. It tolerates irregular watering, poor soil, and even some frost. The main challenge is giving it enough sunlight, because without it, the plant becomes leggy and loses its signature purple tint. In this guide, you will learn how to grow, propagate, and style othonna capensis like a pro.
Why Choose Othonna Capensis
There are hundreds of trailing succulents, but few offer the same combination of texture, color, and ease. The leaves are small, glossy, and shaped like tiny pickles, which gives the plant a playful look. The stems are thin but sturdy, and they can reach up to two feet in length, making them ideal for tall pots or hanging planters.
Another reason to choose this plant is its rapid growth rate. In a single season, a small cutting can fill a six-inch pot and start trailing over the edge. This makes it a great choice for gardeners who want quick results without waiting years for a mature specimen.
The plant also changes color based on light exposure. In lower light, the leaves stay green and the stems remain pale. In full sun or under a grow light, the entire plant shifts to a rich ruby or purple shade. This dynamic color shift adds visual interest and makes the plant feel alive and responsive to its environment.
Light Requirements For Ruby Necklace
Light is the most critical factor for othonna capensis. It needs at least six hours of bright, indirect light or direct morning sun. If you keep it indoors, place it on a south-facing windowsill or use a grow light for 10-12 hours a day.
When the plant does not get enough light, it will stretch out and the leaves will space themselves further apart. This is called etiolation, and it ruins the compact, bead-like appearance. If you notice the stems looking thin and pale, move the plant to a brighter spot immediately.
Too much direct afternoon sun can scorch the leaves, especially in hot summer climates. If you live in a region with intense heat, provide some shade during the hottest part of the day. A sheer curtain or a spot under a patio cover works well.
Signs Your Plant Needs More Light
- Stems are long and weak with wide gaps between leaves
- Leaves are a dull green instead of purple or burgundy
- The plant stops producing yellow flowers
- Growth becomes slow and stunted
Watering Othonna Capensis Correctly
Overwatering is the number one killer of othonna capensis. This succulent stores water in its leaves and stems, so it can survive long periods without a drink. The best approach is to water deeply but infrequently, allowing the soil to dry out completely between waterings.
During the active growing season (spring and summer), water every 7-10 days. In the winter, reduce watering to once a month or even less. The plant enters a semi-dormant state when temperatures drop, and it does not need much moisture.
Always check the soil before watering. Stick your finger about an inch into the pot. If it feels dry, it is time to water. If it feels damp, wait a few more days. This simple test prevents root rot and keeps the plant healthy.
Best Soil Mix For String Of Pickles
Othonna capensis requires well-draining soil that does not hold excess moisture. A standard cactus or succulent mix works well, but you can also make your own. Combine two parts potting soil, one part coarse sand, and one part perlite or pumice. This mixture ensures that water flows through quickly and does not pool around the roots.
If you are planting in a container, make sure it has drainage holes. A pot without holes will trap water at the bottom, leading to root rot and fungal issues. Terracotta pots are an excellent choice because they are porous and allow excess moisture to evaporate.
For ground planting, amend the native soil with grit or sand to improve drainage. This succulent does not like heavy clay or compacted soil. If your garden soil is dense, consider building a raised bed or planting on a slope.
Temperature And Humidity Needs
Othonna capensis is native to South Africa, so it prefers warm, dry conditions. It thrives in temperatures between 60°F and 80°F (15°C to 27°C). It can tolerate brief periods of cold down to 25°F (-4°C), but prolonged frost will damage or kill the plant.
If you live in a region with freezing winters, grow this succulent in a container and move it indoors when temperatures drop. It does not require high humidity and actually prefers dry air. Avoid placing it in a bathroom or near a humidifier, as constant moisture can cause stem rot.
In the summer, you can move the plant outdoors to a sunny patio or balcony. Just make sure to acclimate it gradually to prevent sunburn. Start with a few hours of morning sun and increase exposure over a week.
Fertilizing For Optimal Growth
Othonna capensis is not a heavy feeder, but a little fertilizer helps it grow faster and produce more flowers. Use a balanced, water-soluble fertilizer diluted to half strength. Apply it once a month during the spring and summer growing season.
Avoid fertilizing in the winter when the plant is dormant. Feeding during this time can cause weak, leggy growth and may burn the roots. If you recently repotted the plant, wait at least six weeks before fertilizing to allow the roots to settle.
Organic options like worm castings or compost tea work well too. These provide slow-release nutrients without the risk of chemical burn. Just sprinkle a small amount on the soil surface and water it in.
How To Propagate Othonna Capensis
Propagation is simple and almost always successful. You can start new plants from stem cuttings or by dividing an established plant. The best time to propagate is during the active growing season, when the plant is producing new growth.
- Use clean, sharp scissors to cut a 4-6 inch stem section
- Remove the leaves from the bottom 2 inches of the stem
- Allow the cutting to dry for 1-2 days until the cut end calluses
- Insert the cutting into a pot filled with succulent soil mix
- Water lightly and place in bright, indirect light
- Roots should form within 2-3 weeks
You can also propagate by laying a stem flat on the soil surface. The nodes will root where they touch the ground, and new shoots will emerge. This method works well for filling out a pot or creating a dense ground cover.
Water propagation is another option, though it is less common for succulents. Place the cutting in a glass of water and change the water every few days. Once roots appear, transfer the cutting to soil. Be careful not to leave it in water too long, as it can rot.
Common Pests And Diseases
Othonna capensis is generally pest-resistant, but it can occasionally attract mealybugs, aphids, or spider mites. These pests are more likely to appear on indoor plants or during periods of stress. Check the undersides of leaves and the stem joints regularly for signs of infestation.
Mealybugs look like small white cottony spots. You can remove them with a cotton swab dipped in rubbing alcohol. Aphids are tiny green or black insects that cluster on new growth. A strong spray of water or insecticidal soap will get rid of them.
Spider mites are harder to see but leave fine webbing on the plant. They thrive in dry, dusty conditions. Increase humidity slightly and wipe the leaves with a damp cloth to deter them.
The most common disease is root rot, caused by overwatering or poor drainage. If the stems turn black or mushy at the base, the plant is likely suffering from rot. Remove the affected parts and repot in fresh, dry soil. Reduce watering frequency and ensure the pot has adequate drainage.
Styling Ideas For Your Home
Othonna capensis is a versatile plant that looks great in many settings. Its trailing habit makes it perfect for hanging baskets, macrame planters, or high shelves. The purple stems add a pop of color that contrasts well with green foliage plants.
You can also use it as a ground cover in rock gardens or along pathway edges. It spreads quickly and forms a dense mat that suppresses weeds. In mild climates, it stays evergreen and provides year-round interest.
For a dramatic look, plant it in a tall, narrow pot and let the stems cascade down. Pair it with upright succulents like echeveria or aloe for contrast. The yellow flowers, which bloom in spring and summer, attract bees and butterflies to your garden.
Potting And Repotting Tips
Repot othonna capensis every 2-3 years or when the roots outgrow the container. Choose a pot that is one size larger than the current one. Gently remove the plant and shake off old soil. Trim any dead or rotting roots before placing it in the new pot.
Use fresh succulent soil mix and water lightly after repotting. Wait a week before watering again to allow the roots to heal. This reduces the risk of rot and helps the plant establish faster.
If the plant becomes too leggy, you can prune it back hard. Cut the stems to the desired length, and the plant will branch out from the cut points. Use the cuttings for propagation, so nothing goes to waste.
Frequently Asked Questions
Is othonna capensis toxic to pets?
Othonna capensis is not listed as toxic to cats or dogs, but it is always best to keep plants out of reach. Some succulents can cause mild stomach upset if ingested in large quantities. If you notice your pet chewing on the plant, monitor them for any adverse reactions.
Why is my string of pickles turning yellow?
Yellowing leaves usually indicate overwatering or poor drainage. Check the soil moisture and reduce watering frequency. If the roots are mushy or black, you may need to repot the plant in fresh, dry soil. Yellow leaves can also be a sign of too much direct sun.
Can othonna capensis grow indoors?
Yes, it grows well indoors as long as it receives enough light. Place it near a bright window or under a grow light. Indoors, it will not grow as fast as outdoors, but it will maintain its color and shape with proper care.
How fast does othonna capensis grow?
Under ideal conditions, it grows quickly and can add several inches per month. It is considered a fast-growing succulent, especially during the spring and summer. With regular watering and bright light, you will see noticeable growth within a few weeks.
Does othonna capensis bloom?
Yes, it produces small, yellow, daisy-like flowers in the spring and summer. The blooms appear at the tips of the stems and last for several weeks. Adequate sunlight and occasional fertilization encourage more prolific blooming.
Final Care Summary
Othonna capensis is a low-maintenance succulent that rewards you with beautiful trailing stems and colorful foliage. The key to success is providing bright light, well-draining soil, and infrequent watering. Avoid the temptation to water on a schedule; instead, let the soil dry out completely between waterings.
This plant is perfect for beginners because it tolerates some neglect. If you forget to water it for a week or two, it will bounce back without issue. The main things to watch out for are overwatering and insufficient light.
Whether you grow it indoors or outdoors, in a hanging basket or as ground cover, othonna capensis will add a unique texture and vibrant color to your space. With minimal effort, you can enjoy this charming succulent for years to come.
Take the time to observe your plant and adjust care based on its needs. Every environment is different, so what works for one grower may not work for another. Trust your instincts and learn from your plant’s signals. Before long, you will have a thriving string of pickles that becomes the highlight of your collection.
Start with a healthy cutting or nursery plant, give it the right conditions, and watch it flourish. The ruby necklace is a rewarding plant that never fails to impress. Give it a try, and you will understand why it is so popular among succulent enthusiasts.