Annual pearlwort
Sagina apetala · Caryophyllaceae
The gardener's calendar
Ideal time to plant annual pearlwort: set it out when the soil is neither frozen nor waterlogged, and water generously as it establishes.
ID card
- Family
- Caryophyllaceae
- Plant type
- Annual or winter herbaceous plant
- Adult size
- 5 to 15 cm tall
- Foliage
- Deciduous, very fine and delicate
- Flowering
- Spring to summer (April-June)
- Hardiness
- Very hardy, frost-resistant
- Origin
- Western and central Europe
- Growth
- Fast
Care
Watering
Sagina apetala prefers constantly moist but well-drained soil. Water regularly during the growing period, especially in dry weather. Reduce watering in winter, maintaining just slight moisture. Avoid waterlogging which can promote root rot.
Light exposure
This small herbaceous plant appreciates a sunny to partially shaded location. It tolerates partial shade very well and even develops under reduced light conditions. In very hot climates, partial shade helps it keep its foliage fresh.
Soil and substrate
Sagina apetala is grown in light, well-drained soil that is slightly acidic to neutral. It tolerates poor and even sandy soils. Enrich the soil with well-decomposed compost before planting to improve moisture retention.
Pruning and cutting
No real pruning is necessary. Simply pinch back the tips if you want to densify the clump. Remove dried or damaged parts in spring to encourage vigorous growth.
Fertilizing
Sagina apetala requires only minimal nutritional input. Well-decomposed compost in spring is generally sufficient. When growing in pots or on very poor soil, a diluted balanced fertilizer can be applied once or twice during the growing season.
Pests and diseases
This plant is generally hardy against pests. Watch for root rot if there is excess standing moisture. Slugs can occasionally damage it. Ensure good drainage and air circulation to prevent fungal problems.
Did you know?
Sagina apetala owes its scientific name to its tiny flowers lacking petals (apetala means 'without petals'). In the past, it was used in Northern Europe as filler moss for gaps between paving stones and in rock gardens, where it formed very dense green carpets. Its nearly invisible flowers make it discreet yet appealing to amateur botanists.
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.
Add this plant to my garden →Plants from the same family
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- Sticky CatchflyViscaria vulgaris
- Creeping baby's breathGypsophila repens
- Mountain sandwortArenaria montana
Tips generated and checked by Viridia — adapt them to your local climate.