False African Violet
Streptocarpus Saxorum
Streptocarpus Saxorum, commonly known as the False African Violet or Cape Primrose, is a stunning flowering plant native to South Africa. Its vibrant blooms and attractive foliage make it a popular choice for indoor gardening enthusiasts.
Everything it needs
9 essentials at a glance
Watering
Streptocarpus Saxorum prefers to be kept evenly moist but not soggy.
Water when the top inch of soil feels dry, typically every 5-7 days. In winter, reduce watering frequency to every 10-14 days. Signs of over-watering include yellowing leaves and root rot, while under-watering may cause wilting and leaf curling.
Light
This plant thrives in bright, indirect light but can tolerate partial shade.
Ideally, it should receive 10-12 hours of filtered sunlight daily. Avoid direct sunlight as it can scorch the leaves, and ensure it has some light during winter months.
Soil
A well-draining potting mix is essential, ideally a blend of peat, perlite, and bark.
The pH should be slightly acidic, ranging from 5.5 to 6.5. Ensure the pot has drainage holes to prevent waterlogging.
Humidity
Streptocarpus Saxorum prefers humidity levels between 50-70%.
To increase humidity, use a pebble tray with water or a humidifier. Signs of low humidity include browning leaf edges and wilting flowers.
Temperature
The ideal temperature range is 65-75°F (18-24°C).
It can tolerate temperatures down to 50°F (10°C) but should be protected from frost. This plant thrives in USDA hardiness zones 10-12.
Fertilizing
Use a balanced liquid fertilizer with an NPK ratio of 20-20-20, diluted to half strength.
Fertilize every 4-6 weeks during the growing season (spring and summer) and reduce frequency in fall and winter. Signs of nutrient deficiency include yellowing leaves and poor growth.
Pruning
Prune dead or yellowing leaves as needed to promote healthy growth.
Use clean, sharp scissors or pruning shears. Deadheading spent flowers will encourage more blooms and should be done regularly.
Repotting
Repot every 1-2 years or when the plant becomes root-bound.
Choose a pot that is 1-2 inches larger in diameter. Signs it needs repotting include roots growing out of the drainage holes and stunted growth. Carefully remove the plant, refresh the soil, and place it in the new pot.
Propagation
Propagation can be achieved through leaf cuttings or division.
For leaf cuttings, select a healthy leaf, cut it into sections, and place them in moist potting mix. Keep the soil warm and humid until roots develop. The best time for propagation is in spring.
When it's unhappy
Yellow leaves
Why it happens
Over-watering or insufficient light.
How to fix it
Adjust watering schedule and ensure the plant receives adequate light.
Wilting leaves
Why it happens
Under-watering or low humidity.
How to fix it
Increase watering frequency and humidity levels.
Browning leaf edges
Why it happens
Low humidity or exposure to direct sunlight.
How to fix it
Increase humidity and relocate the plant to a spot with filtered light.
Root rot
Why it happens
Poor drainage or over-watering.
How to fix it
Remove the plant from its pot, trim away affected roots, and repot in fresh, well-draining soil.
Pest infestations (e.g. aphids, spider mites)
Why it happens
High humidity and poor air circulation.
How to fix it
Treat with insecticidal soap or neem oil, and improve air circulation around the plant.
Care through the year
Spring
In spring, resume regular watering and fertilizing as the plant enters its active growth phase. Prune any dead leaves to encourage new growth.
Summer
During summer, ensure the plant receives bright, indirect light and maintain consistent moisture. Monitor humidity levels and adjust as necessary.
Fall
In fall, gradually reduce watering and fertilizing as the plant prepares for dormancy. Keep an eye out for pests as temperatures drop.
Winter
In winter, reduce watering frequency to every 10-14 days and avoid fertilizing. Keep the plant in a warm location away from drafts.
Toxicity & Safety
Streptocarpus Saxorum is non-toxic to pets and children. However, ingestion of large quantities may cause mild gastrointestinal upset.
Good to know
Why are my Streptocarpus Saxorum leaves turning yellow?
Yellow leaves can indicate over-watering or insufficient light. Check your watering habits and ensure the plant is receiving bright, indirect light.
How often should I water my Cape Primrose?
Water your Cape Primrose when the top inch of soil feels dry, typically every 5-7 days. Adjust frequency in winter to every 10-14 days.
What is the ideal humidity for Streptocarpus Saxorum?
This plant thrives in humidity levels between 50-70%. You can increase humidity with a pebble tray or humidifier.
How can I propagate my False African Violet?
You can propagate Streptocarpus Saxorum through leaf cuttings or division. For leaf cuttings, cut a healthy leaf into sections and place them in moist potting mix.
When should I fertilize my Cape Primrose?
Fertilize every 4-6 weeks during the growing season with a balanced liquid fertilizer diluted to half strength, and reduce in fall and winter.
What should I do if my Cape Primrose has root rot?
Remove the plant from its pot, trim away any affected roots, and repot in fresh, well-draining soil to prevent further issues.
How do I know when to repot my Streptocarpus Saxorum?
Repot when the plant becomes root-bound, indicated by roots growing out of the drainage holes or stunted growth.
Grows well with
Track this plant in your garden.
Set care reminders, log growth, and join a community of plant lovers.