Squinancywort

silene pendula

Also known as: ["Flowering Catchfly","Pendulous Catchfly"]

Family: Caryophyllaceae Genus: Silene Category: Flowers

Overview

A low-growing annual herb with delicate, nodding flowers and narrow leaves, native to parts of Europe and Asia.

Benefits & Perks

["long-flowering","wildlife attractant (bees, butterflies, birds)","low maintenance"]

Botanical Classification

Phylum: Magnoliophyta
Class: Magnoliopsida
Order: Caryophyllales
Family: Caryophyllaceae
Genus: Silene
Botanical Name: Silene pendula

Plant Characteristics

Basic Information
  • Category: Flowers
  • Suitable Location: outdoor garden bed or container in a sheltered spot
  • Suitable For:
    Beginners Busy People (low Maintenance) Outdoor Landscapers Wildlife Supporters
  • Is Weed: No
  • Allergenicity: low
Environmental Needs
  • Climate: {"temperatureRange":"5–30°C"}
  • Hardiness: {"zones":"7–10"}
  • Misting: rarely required, only if ambient humidity is very low
  • Drainage: Fast-draining to prevent waterlogging.
  • Soil Type: Well-draining, loamy soil with added organic matter; can tolerate slightly sandy soil.
Maintenance Level
  • Maintenance Level: low
  • Toughness Level: moderate
  • Pruning Frequency: After flowering; light pruning can be done every 4–6 weeks during the growing season.
  • Pruning Intensity: Light to moderate; avoid heavy pruning unless necessary to control size.
Care Details

Ideal Sunlight Coverage:
Full sun to partial shade; 6–8 hours of direct sunlight daily; adjust to partial shade in intense summer heat.

Sunlight Tolerance Tips:
Acclimate gradually to intense sunlight; protect from harsh midday sun; provide dappled shade in hot climates.

Warning Signs: Yellowing leaves, root rot, or stunted growth indicate poor soil conditions or improper watering.

Care Requirements

Care Difficulty
easy

moderate

Sunlight

full sun to partial shade

Rotate plant for even light exposure; use sheer curtains to filter intense sun; avoid sudden light changes.

Watering

every 7–10 days during active growth, reduce in winter

Water thoroughly but allow soil to dry between waterings; avoid waterlogging; prioritize morning watering.

Soil

well-draining, sandy loam with moderate organic content

pH: Slightly acidic to neutral, pH 6.0–7.0.

Use a mix of potting soil and perlite; avoid heavy clay soils; ensure pots have drainage holes.

Temperature

Cool to moderate temperatures, 60–75°F (15–24°C); tolerates cooler spring/autumn conditions; avoid extreme heat.

Avoid sudden temperature shifts; protect from drafts; maintain consistent temperatures for optimal growth.

Fertilizing

every 4–6 weeks during growing season

Apply fertilizer after watering to prevent root burn; stop fertilizing when plant is dormant; use organic options for gentle feeding.

Propagation

Methods

Stem cuttings or seed; stem cuttings are faster and more reliable.

Step-by-Step Propagation Guide
  1. Take a 4–6 inch cutting.
  2. Remove lower leaves.
  3. Dip in rooting hormone.
  4. Plant in medium.
  5. Keep moist and warm.

Best Time: Spring or early summer when the plant is actively growing.

Environment

Warm, humid environment with indirect light; maintain consistent moisture.

Medium

Well-draining potting mix with perlite or sand; can also use water propagation for cuttings.

Hormone

Optional but recommended for faster rooting.

Timeline

Roots develop in 2–4 weeks; new growth appears in 4–6 weeks.

Tools Needed

Pruning shears, rooting hormone, small pots, well-draining mix, plastic wrap or propagator.

Quick Tips

Use healthy, non-flowering stems; keep cuttings out of direct sun; maintain humidity until roots form.

Pruning & Repotting

Pruning Guide
Method

Pinch back tips to encourage branching; deadhead spent flowers to promote reblooming.

Pruning Plan

Prune to maintain shape, encourage bushiness, and remove spent flowers to prolong blooming.

Tools

Pruning shears, clean scissors, gloves.

Checklist

Use clean tools; prune dead or damaged growth; remove spent flowers; shape as needed; avoid over-pruning.

Repotting Guide
Best Season

Spring, before the active growing season begins.

Pot Size

One size larger pot; ensure good drainage holes.

Method

Remove plant gently; trim roots if crowded; place in a slightly larger pot with fresh soil; water lightly.

Suggestions

Repot every 1–2 years or when roots fill the pot; beneficial for young plants to support growth.

Checklist

Choose appropriate pot size; prepare fresh soil mix; handle roots carefully; water after repotting; place in appropriate light.

Advanced Care Tips

Watering Mastery
Watering Checklist

Check soil moisture; water thoroughly; ensure drainage; avoid wetting leaves; adjust for season.

How to Apply Water Properly

Water at the base of the plant, ensuring even moisture reaches the root zone; water until it drains from the bottom; avoid wetting foliage.

Pro Tip: Use a watering can with a narrow spout to direct water to the roots without disturbing the soil surface.
Watering Schedule Tips

Water when the top inch of soil is dry; reduce frequency in winter; increase during hot, dry periods.

Soil Improvement

Add perlite or sand for drainage; incorporate compost for fertility; ensure good aeration.

Temperature Stress Management
Signs of Temperature Issues

Wilting, yellowing leaves, stunted growth, bud drop, or leaf burn in extreme conditions.

Cold Stress

Slows growth, may cause leaf discoloration, or dieback in prolonged cold; susceptible to frost damage.

Solution: Protect from frost with a cover; move indoors in freezing temperatures; ensure good air circulation to prevent mold.

Hot Stress

Leaf scorch, wilting, reduced flowering, or dormancy in excessive heat.

Solution: Provide shade during peak heat; increase humidity; water more frequently; ensure good air circulation.

Fertilizing Guide
Fertilizing Checklist

Check growth phase; dilute fertilizer; apply to moist soil; avoid contact with leaves; follow seasonal schedule.

Fertilizing Method

Use balanced liquid fertilizer diluted to half strength; fertilize every 4–6 weeks during active growth; avoid fertilizing in winter.

Common Problems & Solutions

Yellowing leaves in Silene pendula may indicate nutrient deficiencies, overwatering, or pest infestations, affecting photosynthesis and overall plant health.

Wilting in Silene pendula can result from water stress, either due to drought or overwatering, leading to reduced turgor pressure and impaired nutrient uptake.

Leaf spots on Silene pendula may be caused by fungal or bacterial pathogens, leading to reduced photosynthetic efficiency and potential defoliation.

Root or stem rot in Silene pendula is often caused by fungal pathogens in waterlogged soil, leading to decay, loss of structural integrity, and plant death.

Toxicity Warning

Cats
Slightly Toxic

Cats may experience mild gastrointestinal irritation if they consume parts of Silene pendula due to the presence of saponins. The effects are usually not life-threatening but can cause discomfort.

⚠️ Symptoms:
vomiting diarrhea loss of appetite
🌿 Toxic Parts:
entire plant
⚡ Toxic If:

if eaten

Prevent cats from accessing the plant. Seek veterinary advice if ingestion occurs.
Dogs
Slightly Toxic

The saponins present in Silene pendula can cause mild gastrointestinal upset in dogs if ingested. The effects are typically not severe but can cause discomfort.

⚠️ Symptoms:
vomiting diarrhea lethargy
🌿 Toxic Parts:
entire plant
⚡ Toxic If:

if eaten

Keep pets away from the plant. Contact a veterinarian if ingestion is suspected.
Humans
Slightly Toxic

Silene pendula contains saponins which can cause mild gastrointestinal distress when ingested in significant quantities. The physiological impact is generally limited to irritation of the digestive tract.

⚠️ Symptoms:
nausea vomiting diarrhea
🌿 Toxic Parts:
entire plant
⚡ Toxic If:

if eaten

Avoid ingestion. Wash hands after handling the plant.
Important: Keep this plant out of reach of children and pets. If ingestion occurs, contact poison control or veterinary services immediately.

Frequently Asked Questions

Q: Does Silene pendula require full sun?

A: Yes, it thrives in full sun to partial shade.

Q: How often should I water Silene pendula?

A: Water moderately, allowing the soil to dry slightly between waterings.

Q: Does Silene pendula attract pollinators?

A: Yes, its flowers attract bees and butterflies.

Quick Reference
Family: Caryophyllaceae
Care: easy
Light: full sun to partial shade
Water: every 7–10 days during activ
Suitable For: ["beginners","busy people (low maintenance)","outdoor landscapers","wildlife supporters (attracts bees, butterflies, birds)"]
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