Pelargonium 'Isko Cola', often sold under the name 'Torrento', is a delightful and intriguing scented geranium cultivar, cherished for its unusual fragrance and attractive appearance. This Pelargonium features deeply lobed, slightly crinkled leaves that release a distinctive aroma reminiscent of cola or ginger ale when touched or brushed against. It also produces small, delicate, mauve-pink flowers with darker purple veining, adding to its charm. It belongs to the Geraniaceae family.
Origin: Like many scented geraniums, the exact origins and parentage of Pelargonium 'Isko Cola' are not fully documented. It is likely a complex hybrid involving several Pelargonium species.
Light: Pelargonium 'Isko Cola' thrives in full sun to partial shade. It prefers at least 6 hours of sunlight per day to encourage healthy growth and a strong fragrance. A sunny windowsill or a sheltered spot outdoors is ideal.
Water: Allow the top inch or two of soil to dry out slightly between waterings. Water thoroughly when you do water, ensuring any excess drains away. Overwatering can lead to root rot.
Potting mix: A well-draining potting mix is essential. A standard potting mix amended with perlite or coarse sand to improve drainage is a good choice.
Fertilising: Feed your Pelargonium 'Isko Cola' with a diluted balanced liquid fertiliser every 4-6 weeks during the growing season (spring and summer). Reduce or stop fertilising during the autumn and winter months.
Temperature: Pelargonium 'Isko Cola' prefers moderate temperatures. It is not frost-tolerant and should be protected from cold temperatures. In cooler climates, it's best grown in a pot and brought indoors during the winter.
Pruning: Regular pruning can help maintain the desired shape and size. Pinch back the stems to encourage bushier growth and remove any dead or yellowing leaves.
Pests and Diseases: Keep an eye out for common pests such as aphids, whiteflies, and spider mites. Ensure good air circulation to prevent fungal diseases.
Uses: The fragrant leaves of Pelargonium 'Isko Cola' can be used in potpourris, sachets, or to add a unique twist to culinary creations. It is also believed to have insect-repellent properties.
Toxicity: Pelargoniums are toxic to pets; they contain geraniol and linalool, which can cause gastrointestinal upset, skin irritation, and lethargy.