Night-flowering Catchfly

silene nocturna

Also known as: ["Night-flowering Catchfly","Silene nocturna"]

Family: Caryophyllaceae Genus: Silene Category: Flowers

Overview

A herbaceous perennial plant known for its nocturnal blooming habit and fragrant flowers.

Benefits & Perks

["fragrant flowers","wildlife attractant (bees, butterflies, birds)"]

Botanical Classification

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

Plant Characteristics

Basic Information
  • Category: Flowers
  • Suitable Location: outdoor garden bed in a location with good air circulation
  • Suitable For:
    Collectors & Enthusiasts Fragrance Lovers Wildlife Supporters
  • Is Weed: No
  • Allergenicity: low
Environmental Needs
  • Climate: {"temperatureRange":"5–30°C"}
  • Hardiness: {"zones":"6–9"}
  • Misting: rarely required, only if ambient humidity is very low
  • Drainage: Fast-draining to prevent waterlogging.
  • Soil Type: Well-draining, sandy loam with added organic matter; avoid heavy clay soils.
Maintenance Level
  • Maintenance Level: moderate
  • Toughness Level: moderate
  • Pruning Frequency: Light pruning can be done as needed; major pruning in late winter or early spring before new growth begins.
  • Pruning Intensity: Light to moderate; avoid heavy pruning unless necessary to control size or shape.
Care Details

Ideal Sunlight Coverage:
Full sun (6–8 hours/day) in cooler climates; partial shade in hot regions to prevent scorching.

Sunlight Tolerance Tips:
Acclimate gradually to intense sunlight; protect from harsh afternoon sun in summer; adjust placement based on seasonal light intensity.

Warning Signs: Yellowing leaves, root rot, or stunted growth indicate poor soil drainage or nutrient imbalance.

Care Requirements

Care Difficulty
moderate

moderate

Sunlight

full sun to partial shade

Rotate plant weekly for even growth; use sheer curtains to filter intense light; avoid direct midday sun in summer.

Watering

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

Water thoroughly but infrequently; ensure soil dries between waterings; avoid wetting foliage.

Soil

well-draining, sandy loam with some organic matter

pH: Slightly alkaline to neutral (pH 6.5–7.5).

Use a mix of potting soil and sand; avoid overwatering to maintain soil structure; test pH periodically.

Temperature

Prefers cool to moderate temperatures (60–75°F/15–24°C); tolerates cooler nights but avoids extreme heat.

Avoid placing near drafty windows or heat vents; maintain consistent temperatures; protect from sudden temperature fluctuations.

Fertilizing

every 4–6 weeks during growing season, none in winter

Apply fertilizer after watering to prevent root burn; flush soil occasionally to prevent salt buildup; stop fertilizing before dormancy.

Propagation

Methods

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

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 (70–75°F/21–24°C), humid, and bright but indirect light; protect from direct sun.

Medium

Well-draining mix of perlite and peat moss or cactus mix.

Hormone

Rooting hormone is recommended to improve success rates.

Timeline

Roots typically form in 2–4 weeks; new growth may appear in 6–8 weeks.

Tools Needed

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

Quick Tips

Use sterile tools to prevent disease; maintain high humidity until roots form; avoid overwatering.

Pruning & Repotting

Pruning Guide
Method

Pinch back tips to encourage branching; trim leggy stems; remove spent flowers to promote reblooming.

Pruning Plan

Prune to maintain shape, encourage bushier growth, and remove dead or diseased parts.

Tools

Pruning shears, clean scissors, gloves.

Checklist

Use clean tools; prune dead or damaged growth; shape as desired; dispose of clippings properly.

Repotting Guide
Best Season

Early spring before active growth begins.

Pot Size

One size larger pot (e.g., +2 inches in diameter); ensure good drainage.

Method

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

Suggestions

Repot every 2–3 years or when roots fill the pot; beneficial for rejuvenating soil and root system.

Checklist

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

Advanced Care Tips

Watering Mastery
Watering Checklist

Check soil moisture before watering; water deeply; ensure drainage; avoid overhead watering.

How to Apply Water Properly

Water at the base of the plant, ensuring moisture reaches the root zone; allow excess water to drain away; water early in the day to minimize evaporation.

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 deeply once the top inch of soil feels dry; reduce frequency in winter to prevent root rot.

Soil Improvement

Add perlite or coarse sand for drainage; incorporate compost for fertility; ensure soil is loose and airy.

Temperature Stress Management
Signs of Temperature Issues

Wilting, leaf drop, or stunted growth in excessive heat; yellowing or browning leaves in cold stress.

Cold Stress

Slows growth, may cause leaf discoloration, and increases susceptibility to root rot if soil remains wet.

Solution: Move to a warmer location; ensure soil is well-drained; use a heat mat for seedlings or young plants.

Hot Stress

Leaves may scorch, wilt, or drop; flowering may be reduced; growth may become stunted.

Solution: Provide shade during peak heat; increase humidity with misting; water more frequently but avoid waterlogging.

Fertilizing Guide
Fertilizing Checklist

Use diluted fertilizer; fertilize during growing season; avoid winter feeding; flush soil periodically.

Fertilizing Method

Use a balanced liquid fertilizer diluted to half strength every 4–6 weeks during active growth (spring/summer); avoid fertilizing in winter.

Common Problems & Solutions

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

Wilting in Silene nocturna can be caused by water stress, either due to drought or overwatering, leading to reduced turgor pressure and impaired nutrient uptake.

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

Rotting, particularly root or stem rot, can occur in Silene nocturna due to excessive moisture or fungal infections, leading to decay and potential plant death.

Toxicity Warning

Cats
Slightly Toxic

Cats may experience mild gastrointestinal irritation if they consume parts of Silene nocturna, particularly the seeds and roots. The toxic compounds can cause discomfort but are not typically severe.

⚠️ Symptoms:
vomiting diarrhea depression
🌿 Toxic Parts:
seeds roots
⚡ Toxic If:

if eaten

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

In dogs, ingestion of Silene nocturna seeds and roots can lead to mild gastrointestinal upset due to the presence of saponins. The effects are generally not life-threatening but can cause discomfort.

⚠️ Symptoms:
vomiting diarrhea lethargy
🌿 Toxic Parts:
seeds roots
⚡ Toxic If:

if eaten

Monitor pets closely if ingestion is suspected. Contact a veterinarian if symptoms persist.
Humans
Slightly Toxic

Silene nocturna contains saponins and other compounds that can cause mild gastrointestinal distress when ingested in significant quantities. The physiological impact is primarily localized to the digestive system.

⚠️ Symptoms:
nausea vomiting abdominal pain diarrhea
🌿 Toxic Parts:
seeds roots
⚡ Toxic If:

if eaten

Avoid ingestion of seeds and roots. Keep away from children and pets.
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 nocturna bloom during the day?

A: No, it is known for its nocturnal blooming habit.

Q: Is Silene nocturna toxic to pets?

A: The toxicity to pets is currently unknown.

Q: How difficult is it to care for Silene nocturna?

A: It requires moderate care and maintenance.

Quick Reference
Family: Caryophyllaceae
Care: moderate
Light: full sun to partial shade
Water: every 7–10 days during activ
Suitable For: ["collectors/enthusiasts","fragrance lovers","wildlife supporters (attracts bees, butterflies, birds)"]
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