Royal Catchfly

silene regia

Also known as: ["Indian Pink","Scarlet Catchfly"]

Family: Caryophyllaceae Genus: Silene Category: Flowers

Overview

A herbaceous perennial native to North America, known for its vibrant scarlet-red flowers that attract hummingbirds and butterflies.

Benefits & Perks

["long-flowering","wildlife attractant (bees, butterflies, birds)","fragrant flowers","aesthetic foliage"]

Botanical Classification

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

Plant Characteristics

Basic Information
  • Category: Flowers
  • Suitable Location: garden bed in a sunny spot, or container with good drainage
  • Suitable For:
    Beginners Wildlife Supporters Outdoor Landscapers
  • Is Weed: No
  • Allergenicity: low
Environmental Needs
  • Climate: {"temperatureRange":"10–30°C"}
  • Hardiness: {"zones":"5–9"}
  • 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; avoid heavy clay.
Maintenance Level
  • Maintenance Level: moderate
  • Toughness Level: moderate
  • Pruning Frequency: After flowering; light pruning as needed to remove dead or damaged growth.
  • Pruning Intensity: Light to moderate; avoid heavy pruning unless necessary to control size.
Care Details

Ideal Sunlight Coverage:
Full sun (6–8 hours of direct sunlight daily); tolerates partial shade in hot climates.

Sunlight Tolerance Tips:
Acclimate gradually if moving from shade to sun; protect from intense midday sun in hot regions; ensure good air circulation to prevent mildew.

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

Care Requirements

Care Difficulty
moderate

moderate

Sunlight

full sun to partial shade

Rotate plant for even growth; use sheer curtains in intense sun; avoid sudden light changes.

Watering

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

Water thoroughly but infrequently; ensure soil dries between waterings; avoid overhead watering to prevent fungal issues.

Soil

well-draining, loamy soil with added organic matter

pH: Slightly acidic to neutral (pH 6.0–7.0).

Use raised beds for better drainage; avoid overwatering; test soil pH annually.

Temperature

Prefers 60–75°F (15–24°C); tolerates cooler nights but avoids prolonged frost.

Avoid drafts, maintain consistent temperatures, adjust care for seasonal shifts.

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 when plant is dormant.

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, remove lower leaves, dip in hormone, plant in medium, keep moist and humid.

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

Environment

High humidity (70–80%), indirect light, and consistent warmth (65–75°F).

Medium

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

Hormone

Recommended to use rooting hormone for faster root development.

Timeline

Roots develop in 2–4 weeks; new growth appears in 6–8 weeks.

Tools Needed

Pruning shears, rooting hormone, small pots, misting spray bottle, plastic bags or propagator.

Quick Tips

Use healthy, non-flowering stems; maintain humidity with a plastic cover; avoid direct sun during rooting.

Pruning & Repotting

Pruning Guide
Method

Deadhead spent flowers; trim stems just above a leaf node or bud.

Pruning Plan

Remove spent flowers to encourage reblooming; trim leggy growth to maintain shape.

Tools

Clean pruning shears or scissors, gloves.

Checklist

Sanitize tools, deadhead spent blooms, trim damaged growth, shape as needed, clean up debris.

Repotting Guide
Best Season

Early spring before new growth begins.

Pot Size

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

Method

Remove plant gently, trim roots if crowded, 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 growth and health.

Checklist

Choose right pot, prepare new soil, handle roots carefully, water after repotting, place in appropriate light.

Advanced Care Tips

Watering Mastery
Watering Checklist

Check soil moisture, water deeply, ensure drainage, avoid wetting foliage, adjust for season.

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 morning 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 is dry; reduce frequency in winter to prevent root rot.

Soil Improvement

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

Temperature Stress Management
Signs of Temperature Issues

Wilting, yellowing leaves, stunted growth, or bud drop in extreme heat or cold.

Cold Stress

Slows growth, may cause leaf drop or dieback in temperatures below 50°F (10°C).

Solution: Move to a warmer location, provide frost protection, or mulch to insulate roots.

Hot Stress

Leaves may scorch, wilt, or drop in temperatures above 85°F (29°C) without adequate water.

Solution: Provide shade during peak heat, increase watering, or use evaporative cooling methods.

Fertilizing Guide
Fertilizing Checklist

Check season, dilute fertilizer, water before feeding, avoid contact with roots, stop in dormancy.

Fertilizing Method

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

Common Problems & Solutions

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

Wilting in Silene regia 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 regia may be caused by fungal or bacterial infections, leading to reduced photosynthetic efficiency and potential defoliation.

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

Toxicity Warning

Cats
Slightly Toxic

Cats may experience mild gastrointestinal irritation if they consume parts of Silene regia. The saponins in the plant can cause digestive upset, though severe reactions are rare.

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

if eaten

Keep plants out of reach of cats. Seek veterinary advice if ingestion is observed.
Dogs
Slightly Toxic

In dogs, ingestion of Silene regia can lead to mild gastrointestinal upset due to the presence of saponins. The effects are typically not life-threatening but can cause discomfort.

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

if eaten

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

Silene regia contains saponins and other compounds that 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 abdominal pain
🌿 Toxic Parts:
roots leaves flowers
⚡ Toxic If:

if eaten

Avoid consuming any part of the plant. 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: How do I propagate Silene regia?

A: Propagate by seed in fall or early spring, or by division in early spring.

Q: What are the ideal growing conditions for Royal Catchfly?

A: Full sun to partial shade, well-drained soil, and moderate moisture.

Q: Does Silene regia attract pollinators?

A: Yes, it is highly attractive to hummingbirds, butterflies, and bees.

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