Saxifraga callosa aka Limestone Saxifrage

Taxonomy ID: 10661

Saxifraga callosa, also known as the limestone saxifrage, is a rare evergreen perennial plant in the family Saxifragaceae. Native to maritime alpine habitats in Western Europe, including Italy, France, and Spain, this species grows up to 50 cm tall and 100 cm broad. It forms clumps of rosettes with narrow grey-green leaves that are coated in lime. In spring, it produces starry, pure white flowers in long panicles. The Latin specific epithet callosa refers to its thick-skinned nature with calluses. This plant is an excellent choice for houseplant enthusiasts, as it can thrive indoors with regular watering. It prefers abundant sunlight and should be positioned less than 3 feet away from a window. To ensure its optimal growth, it is important to use well-draining soil. Additionally, regular repotting is recommended, ideally when the plant doubles in size, which eliminates the need for added fertilizers. With its unique characteristics and striking appearance, the limestone saxifrage is a captivating addition to any indoor garden.

Common names

Limestone Saxifrage, Thick Leaved Saxifrage

More information about Limestone Saxifrage

What is the region of origin of Limestone Saxifrage

Limestone Saxifrage’s native range is Temperate Northern Hemisphere.

What are the water needs for Limestone Saxifrage

Limestone Saxifrage should be watered regularly, allowing the soil to dry out between waterings.

What is the right soil for Limestone Saxifrage

Limestone Saxifrage loves a well-draining soil. Perlite and vermiculite help with drainage, while coco coir adds organic matter, so a good potting soil mix will have all three. You can improve store-bought soil by adding some perlite to it.

What is the sunlight requirement for Limestone Saxifrage

To ensure optimal growth, the Limestone Saxifrage prefers bright indirect light for 6-8 hours each day. Insufficient light can result in slow growth and leaf drop, so it's important to find a well-lit location for this plant. Place it near a window, within a distance of 1 meter (3 feet), to enhance its potential for thriving.

What's the right humidity for Limestone Saxifrage

The Limestone Saxifrage does not need extra humidity. Plants primarily absorb water through their root system, making soil watering the best way to provide humidity to your plants.

How to fertilize Limestone Saxifrage

The Limestone Saxifrage should be repotted when it has doubled in size or annually, whichever comes first. Providing fresh potting soil with all the essential nutrients each year ensures the plant's well-being, eliminating the need for fertilizer. Remember, plants derive their energy from the sun and not fertilizer.

Is Limestone Saxifrage toxic to humans/pets?

Ploi lacks confirmed information on the toxicity of this plant. If you, a relative, or your pet accidentally consume plant material with unknown toxicity, it's best to consult a medical expert.

More info:
Wikipedia