Buddleja saligna, the false olive or bastard olive, is almost endemic to South Africa where it has a wide distribution. It occurs most often in ravines and against outcrops, and is distributed from coastal elevations to the central plateau at elevations of < 2000 m. The species was first described and named by Willdenow in 1809.
Squarestem butterflybush is fairly disease-resistant and typically not susceptible to illnesses. In terms of care, this plant is relatively low-maintenance. When grown outdoors it needs minimal watering, and larger plants generally do not require pruning. Smaller plants, however, should be pruned after they finish blooming. Squarestem butterflybush is suitable for anyone with an outdoor area, such as a garden or deck, and does not demand much prior experience in plant care.
How to keep Buddleja Saligna.
Light
Squarestem butterflybush grows in open habitats like sunny meadows and forest edges, where light is plentiful. It does best in Full Sun but can tolerate Partial Sun, adapting well to different sunlight conditions.
Water
The Squarestem Butterflybush grows well in both well-drained and moist soil. It can tolerate short periods of drought. During the first year, especially for plants in containers, water it weekly. Once established, it needs less frequent watering, but be careful not to overwater, as this can lead to root rot.
Temperature
Squarestem butterflybush is fairly adaptable to temperature, able to withstand higher heat and wide temperature fluctuations. In hot weather, you should pay attention to watering and provide appropriate shade to avoid sunburn. Its ability to endure low temperatures is relatively poor; while it can tolerate some cold, overly cold conditions can cause frost damage.
Fertilizer
Timing is essential for fertilizing Squarestem butterflybush. Apply fertilizer in early spring and continue monthly until early summer. The fertilizer promotes attractive blooms and supplies energy during both dormant and active growth periods.
Pruning
The Squarestem butterflybush is characterized by its unique square stems and fragrant leaves. To promote growth, prune the plant in early spring. This involves removing dead wood and thinning the branches, which helps improve air circulation and increase the plant's resistance to disease. Be sure to use clean, sharp tools to make precise cuts and prevent infection.
Botanical profile.
- Plant Type
- Shrub
- Life Cycle
- Perennial
- Genus
- Buddleja
- Family
- Scrophulariaceae
- Hardiness Zone
- 9-11
- Mature Height
- 3.05 m to 7.01 m
- Mature Spread
- 2.13 m to 3.96 m
- Leaf Color
- Dark Green, Olive Drab
- Leaf Type
- Evergreen
- Flower Color
- White
- Flower Size
- 0.51 cm to 1.02 cm
- Bloom Time
- Mid fall, Late fall, Early winter
- Planting Time
- Spring, Summer, Autumn
- Harvest Time
- Mid winter, Late winter, Early spring
- Native Area
- South Africa, Botswana, Zimbabwe
Other names.
Reader questions.
What are the sunlight requirements for Squarestem butterflybush (Buddleja saligna)?
The Squarestem butterflybush (Buddleja saligna) needs specific sunlight conditions to thrive. It requires full sun, which means it should receive above 6 hours of sunlight daily. Alternatively, it can also grow under partial sun, getting about 3-6 hours of sunlight each day. It's crucial to observe how sunlight moves through your garden throughout the day. This observation will help you find spots that offer the ideal mix of light and shade, ensuring that your Squarestem butterflybush remains healthy and happy.
