Sticky Catchfly
Viscaria vulgaris · Caryophyllaceae
📷 Kurt Stüber [1] · CC BY-SA 3.0
The gardener's calendar
Ideal time to plant sticky catchfly: set it out when the soil is neither frozen nor waterlogged, and water generously as it establishes.
ID card
- Common name
- Sticky Catchfly
- Family
- Caryophyllaceae
- Plant type
- Perennial herbaceous
- Flowering
- May to July
- Adult height
- 60 cm
- Foliage
- Deciduous, semi-evergreen
- Hardiness
- Very hardy (down to -20°C)
- Origin
- Central and Northern Europe
✓ Taxonomy verifiedSource: AI estimate · hardiness: reliability high.
Expert tips
The key tip
Hates waterlogging: in heavy soil, drain or raise the planting area. Hard prune after flowering (July) to keep a compact form and prevent stem scalding.
The common mistake
Forgetting it's sticky (viscaria): cold autumn rains will rot the collar and base if humidity lingers too long.
The pro's trick
Ring the base with dry gravel (2-3 cm); late summer, lightly aerate the soil around it to drive out moisture.
Seasonal watch
August-September: watch for powdery mildew; spray sulfur or remove diseased leaves at the first sign of trouble.
Care
Exposure
Sticky Catchfly demands full sun exposure for optimal flowering. It tolerates partial shade but will flower less generously. Place it in a well-aerated location to prevent stagnant moisture problems.
Watering
Water moderately when planting to establish the root system well. Once established, this plant is quite drought-tolerant. Reduce watering in winter and during regular rainfall; excess water promotes root rot.
Soil
Prioritize well-draining, light soil, even if chalky or poor. This plant thrives in rocky or sandy terrain. Improve drainage if your soil is clayey or compacted to prevent moisture buildup.
Fertilizer
No fertilizer is generally necessary on average-quality soil. A handful of compost at planting time is sufficient. Avoid nitrogen fertilizers which promote foliage at the expense of flowering.
Pruning and maintenance
Remove spent flowers regularly to extend blooming and maintain compact form. In late autumn or early spring, eliminate dead or damaged stems. No drastic pruning is required; the plant naturally maintains a harmonious shape.
Pests and diseases
Sticky Catchfly is hardy and rarely susceptible to diseases. Excess moisture can occasionally promote rot. Watch for aphids in spring; a water spray is generally sufficient to eliminate them.
Did you know?
The name "viscaria" refers to the sticky hairs that cover the stem below the flowers, creating a natural barrier against unwanted crawling insects. This fascinating botanical adaptation likely inspired Central European horticulturists, who have long cultivated this plant in traditional rock gardens for its subtle charm and remarkable vigor.
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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Tips generated and checked by Viridia — adapt them to your local climate.