Plectranthus oertendahlii is a species of flowering plant in the sage and mint family, Lamiaceae. Common names include silverleaf spurflower, Swedish ivy, Oertendahl's spurflower, November lights and Brazilian coleus, though it is native to eastern South Africa rather than Brazil. Plectranthus oertendahlii and the cultivar 'Uvongo' have gained the Royal Horticultural Society's Award of Garden Merit.
Silverleaf spurflower is generally resistant to disease and is not usually prone to illnesses. However, it can suffer from leaf spots when light and ventilation are inadequate or when it is overwatered. Its care level is considered easy, since it only needs regular watering and little other attention. Silverleaf spurflower is well suited to people who do not have the time or energy to commit to frequent care.
How to keep Plectranthus Oertendahlii.
Light
Silverleaf spurflower is native to habitats such as forest understories and rocky areas, where it grows under natural shade. It favors partial sun but can tolerate full sun or full shade, reflecting its adaptable and hardy nature.
Water
The Silverleaf spurflower thrives in shaded, humid environments similar to forest floors. It prefers consistent moisture with occasional dry spells. To maintain its lush foliage, water it weekly. As an indoor ornamental plant, it benefits from increased humidity, which can be achieved by misting or using pebble trays. This extra humidity helps enhance its vibrant leaf variegation.
Temperature
Silverleaf spurflower comes from tropical areas, where the climate is usually warm and humid. Consequently, it is adapted to high temperatures and humidity. It does not tolerate sudden temperature changes and prefers a consistent temperature, so avoiding indoor temperature fluctuations is important. It generally cannot withstand cold and needs warmer conditions to grow. If the temperature falls too low, the plant may stop growing or even die.
Fertilizer
Appropriate fertilization is essential for the health and appearance of the Silverleaf spurflower. Apply fertilizer to the Silverleaf spurflower during summer, repeating the application monthly throughout the season. Nutrients power growth and help sustain the plant's structures. Fertilizing improves the Silverleaf spurflower's flower display, promoting the best blooms.
Pruning
Pruning the silverleaf spurflower from early to late spring can enhance its ornamental foliage and encourage bushier growth. Techniques such as pinching back new shoots and removing leggy stems can be particularly effective. Pruning after the plant flowers will also improve its overall health. It's important to always use clean, sharp tools to prevent disease and aid in the plant's recovery, helping to optimize its natural growth cycle.
Pot & Repot
When repotting Silverleaf spurflower, pick a pot 1-2 inches (2.5–5.1 cm) larger with good drainage. Use a well-draining potting mix. Repot in spring or fall, making sure the root ball is positioned slightly lower than the rim of the flower pot. Water thoroughly after repotting and put it in a warm spot with indirect sunlight.
Botanical profile.
- Plant Type
- Herb
- Life Cycle
- Perennial
- Genus
- Plectranthus
- Family
- Lamiaceae
- Hardiness Zone
- 10-11
- Mature Height
- 49 cm
- Mature Spread
- 49 cm
- Leaf Color
- Green, Gray, Silver
- Leaf Type
- Evergreen
- Flower Color
- Lavender, White
- Flower Size
- 1.02 cm to 1.52 cm
- Bloom Time
- All year round
- Planting Time
- Spring, Summer, Autumn
- Harvest Time
- All year round
- Native Area
- South Africa
Other names.
