Sun: full sun to partial shade
Water: Below average watering needs for a succulent
Temperature: Zone 9b from 25° F to 30° F (-3.9° C to -1.1° C) to Zone 11b from 45° F to 50° F (7.2° C to 10° C)
Winter Survival: Not cold hardy
Propagation: cuttings
Flower: In the Spring
Flower Type: Yellow
Toxic: Toxic to humans and animals
Dormant: winter
Space Requirement: Indoors & Outdoors
Common Problems: pests
Where to buy Euphorbia Grandicornis?
Basc Care for Euphorbia Grandicornis
Watering
You can water your succulent more than often in extreme conditions but make sure that the soil is completely dry before watering your succulent again.
One simple tip for you is that you can use some online apps to check the soil status before you go water your succulents. I would recommend the ThePlantsCheck app, it has some nice features there.
Fertilizing
Only feed this succulent during its active growing seasons which means winter. Use the right fertilizer applied in the right amounts. Applying half-strength balanced fertilizer every month or so is recommended for optimal results.
Do not fertilize during winter as the plant is dormant.
Sun & Location Requirements for "Zig Zag Cactus, Cow Horn Cactus"
Euphorbia Grandicornis needs full sun to partial shade in order to thrive. While this variety needs plenty of bright light, it is important not to place it in direct sunlight for extended periods of time as this can cause damage or scorching to the leaves and stems. A shadier spot with indirect light could be just what "Zig Zag Cactus, Cow Horn Cactus" needs.
As per this succulent profile, it is only able to stay healthy when the environment temperature is above the range of zone 9b from 25° F to 30° F (-3.9° C to -1.1° C).
When temperatures drop below freezing, it is important to take precautions to protect Euphorbia Grandicornis from the cold. Insulating and providing adequate drainage for the plant are key elements in helping it survive winter weather. Wind and sun exposure should also be minimized to prevent frost damage.
Any succulents in the group will need a medium space to grow. You can place your pot at your table or window. Since this plant needs more space than mini succulents, you should consider do not plant them together with other succulents/plants.
Euphorbia Grandicornis also benefits from some indirect light throughout the day as well, so make sure you give it enough space to soak up light without becoming too exposed to heat.
Propagation
One way to propagate Euphorbia Grandicornis is by cutting
Toxicity
The leaves of Euphorbia Grandicornis contain an array of toxins that can lead to symptoms such as abdominal cramps, nausea and even death if ingested. It is essential to keep this plant away from both humans and animals.
Pests and Diseases
Euphorbia Grandicornis can be affected common pests and diseases like most of the other succulents such as mealybugs, scale insects, and Red spider mites.
If you do spot any of pest signs, you can treat your succulent using below methods.
- Mealybugs: quarantine, clean infected plants, soapy water.
- Scale insects: quarantine, clean infected plants, soapy water.
- Red spider mites: Quarantine, clean your infected plants, treatment with a systemic insecticidal/soapy water.
Besides that, to prevent serious health issues from happening, keep your succulent in a well-ventilated area and check it regularly for any signs of pests or health problems.