Polycarpon tetraphyllum
Polycarpon tetraphyllum · Caryophyllaceae
The gardener's calendar
Ideal time to plant polycarpon tetraphyllum: set it out when the soil is neither frozen nor waterlogged, and water generously as it establishes.
ID card
- Foliage
- Deciduous to semi-evergreen
- Blooming
- Spring to summer (April-July)
- Adult size
- 10-20 cm in height
- Growth
- Fast
- Hardiness
- Moderate, prefers temperate climates
- Origin
- Mediterranean and temperate regions
- Plant type
- Annual or biennial herbaceous plant
Care
Light Exposure
Polycarpon tetraphyllum prefers a sunny or partially shaded location for optimal growth. It adapts well to bright exposures but tolerates semi-shaded spots. Avoid areas that are too dark, as they slow down flowering.
Watering
Water regularly during the growing season, keeping the substrate moist but never waterlogged. In summer, increase frequency during dry periods. Reduce watering in autumn and winter according to natural rainfall.
Soil
This plant appreciates well-draining, light, and undemanding soil. A substrate mixed with sand or gravel promotes root development and limits stagnant moisture risks. Poor soil suits this hardy species perfectly.
Fertilizing
Moderate fertilizing in spring is sufficient to support growth and flowering. Prefer a balanced fertilizer diluted at low concentration. An over-enriched plant tends to produce more foliage than flowers.
Pruning and Cutting
Pinch young stems to encourage branching and a more compact form. After flowering, you can remove spent flowers to extend the blooming period. Little major intervention is needed on this small herbaceous plant.
Diseases and Pests
Polycarpon tetraphyllum is generally robust against common pests. Watch out for excessive moisture, which can promote root rot or mold. Ensure good air circulation and avoid foliar watering.
Did you know?
Polycarpon tetraphyllum gets its name from the Greek 'poly' (many) and 'karpos' (fruit), referring to its ability to produce numerous small seed capsules. This small herbaceous plant, often overlooked, has naturalized in many temperate countries, demonstrating remarkable ecological adaptability beyond its original Mediterranean habitat.
Where to buy it
Plant in spring or early autumn, avoiding spells of intense heat. Pick a plant with healthy foliage and roots that are not exposed. Best time: March, April, May, September.
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Tips generated and checked by Viridia — adapt them to your local climate.