Prick-madam - Petrosedum rupestre (Care, Characteristics, Distribution, Images)

Prick-madam

A perennial succulent native to Europe, prick-madam (Petrosedum rupestre) produces yellow flowers between its spruce-like foliage. The leaves themselves can come in many shades, often tinted blue, gray, or yellow. It is a popular houseplant or garden companion and is able to survive droughts, deer, rabbits, and (arguably) curious children better than most.

Scientific classification

Species

Prick-madam (Petrosedum rupestre)

Saxifrages, stonecrops and allies

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Perennial

Lifespan

Herb

Plant Type

Spring

Bloom Time

30 cm

Plant Height

Evergreen

Leaf type

5 - 32 ℃

Ideal Temperature

Distribution of Prick-madam

Distribution Map

Prick-madam is indigenous to various temperate regions of Europe, typically thriving in rocky and mountainous habitats. It has been introduced to several northern regions in Europe where it is now established. Moreover, this species has been cultivated in various parts of its non-native range, indicating a capacity for adaptation beyond its original habitat.

Native

Cultivated

Invasive

Introduced

No species reported

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Habitat

Garden

Toxicity

Prick-madam poses a mild toxicity risk to humans. The entire plant can cause gastrointestinal discomfort, including nausea, vomiting, and diarrhea, and potentially skin irritation or allergic reactions. Avoid accidental ingestion, especially in areas where prick-madam is present.

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Care Guide for Prick-madam

Every 2 weeks

Water

Full sun

Sunlight

5 - 32 ℃

Ideal Temperature

Succulent & Cactus Soil

Soil Type

Water: Prick-madam thrives in rocky, dry environments with infrequent water. It has high drought tolerance, needing minimal watering every two weeks. Preferring full sun, prick-madam requires well-draining soil to prevent root water accumulation, mimicking its natural habitat's conditions.

Fertilize: For healthy growth, fertilize prick-madam with diluted succulents and cacti food in spring, avoiding fall and winter. Over-fertilization can harm prick-madam's structure. Follow package instructions to prevent nutrient burn and ensure effective nutrient absorption throughout its growth cycle.

Pruning: To maintain prick-madam's shape, prune redundant or dense branches in spring and fall using knives or scissors, applying sulfur powder to cuts. For propagation, select a stout stem with 5-6 leaves, cut it, treat the wound, and plant after healing in slightly moist soil.

Propagation: Prick-madam is a succulent that thrives in rock gardens or as an edging plant. Propagate via healthy cuttings from non-flowering shoots, allowing the cut end to callus before planting in well-draining substrate. Provide warmth and indirect light for optimal growth.

Repotting: Repot prick-madam every two years in spring using a slightly larger drainage-equipped container to support its growth. After repotting, position prick-madam in bright, indirect light and water sparingly to promote root establishment while avoiding rot.

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