Bloody Cranesbill

geranium sanguineum

Also known as: ["Bloody Geranium","Cranesbill"]

Family: Geraniaceae Genus: Geranium Category: Flowers

Overview

A hardy perennial with deeply cut leaves and vibrant magenta-red flowers, native to Europe.

Benefits & Perks

["long-flowering","disease resistant","deer resistant","cold hardy","wildlife attractant (bees, butterflies, birds)","low maintenance"]

Botanical Classification

Phylum: Magnoliophyta
Class: Magnoliopsida
Order: Geraniales
Family: Geraniaceae
Genus: Geranium
Botanical Name: Geranium sanguineum

Plant Characteristics

Basic Information
  • Category: Flowers
  • Suitable Location: border plantings, rock gardens, or containers in a sunny 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":"4–8"}
  • Misting: rarely required, only if ambient humidity is very low
  • Drainage: Fast-draining to prevent root rot.
  • Soil Type: Well-draining, loamy soil with added organic matter; avoid heavy clay soils.
Maintenance Level
  • Maintenance Level: low
  • Toughness Level: high
  • Pruning Frequency: After flowering or every 4–6 weeks during the growing season.
  • Pruning Intensity: Moderate; remove up to one-third of the plant’s growth if overgrown.
Care Details

Ideal Sunlight Coverage:
Full sun to partial shade; 6–8 hours of direct sunlight daily, with some afternoon shade in hot climates.

Sunlight Tolerance Tips:
Acclimate plants gradually to intense sunlight; protect from harsh afternoon sun to prevent scorching; adjust placement based on seasonal light changes.

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 weekly for even growth; provide shade during peak summer heat; monitor for signs of sunburn.

Watering

every 7–10 days during active growth, less frequently in winter

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

Soil

well-drained, loamy soil with added organic matter

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

Use a cactus or succulent mix as a base; ensure pots have drainage holes; avoid compacted soil.

Temperature

Prefers cool to moderate temperatures (60–75°F or 15–24°C); tolerates cooler nights and can withstand light frost.

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

Fertilizing

every 4–6 weeks during spring and summer

Apply fertilizer after watering to prevent root burn; flush soil occasionally to prevent salt buildup; reduce feeding in dormancy.

Propagation

Methods

Stem cuttings or division; stem cuttings are the most common method for home growers.

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

Best Time: Late spring to early summer when the plant is actively growing.

Environment

Warm, humid environment with indirect light; maintain temperatures around 70–75°F (21–24°C).

Medium

Well-draining potting mix, such as a mix of peat, perlite, and sand.

Hormone

Rooting hormone is recommended to encourage faster root development.

Timeline

Roots typically develop in 3–6 weeks; new growth may appear in 2–3 months.

Tools Needed

Pruning shears, rooting hormone, small pots, misting spray bottle.

Quick Tips

Use sharp, clean tools to prevent disease; maintain high humidity with a plastic cover; avoid overwatering.

Pruning & Repotting

Pruning Guide
Method

Pinch back stems or use clean shears to cut just above a leaf node or bud.

Pruning Plan

Prune to maintain shape, encourage bushier growth, and remove spent flowers to promote reblooming.

Tools

Pruning shears, sharp scissors, or your fingers for pinching.

Checklist

Use clean tools; prune after flowering; remove dead or diseased growth; shape the plant evenly.

Repotting Guide
Best Season

Early spring before the active growing season begins.

Pot Size

Increase pot size by 1–2 inches in diameter; avoid oversized pots to prevent waterlogging.

Method

Remove the plant gently; trim any circling roots; place in a slightly larger pot with fresh, well-draining soil; water thoroughly after repotting.

Suggestions

Repot every 2–3 years or when the plant becomes root-bound; beneficial for maintaining vigor and growth.

Checklist

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

Advanced Care Tips

Watering Mastery
Watering Checklist

Check soil moisture; water deeply; ensure drainage; avoid wetting leaves.

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 in the morning to reduce 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 when the top 1–2 inches of soil are 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 extreme heat; yellowing or browning leaves in cold stress.

Cold Stress

Slows growth and can cause leaf discoloration; prolonged exposure to freezing temperatures may damage roots.

Solution: Move potted plants indoors during frost; mulch around the base of in-ground plants; provide frost protection in cold climates.

Hot Stress

Leaves may wilt, curl, or develop brown edges; flowering may be reduced in excessive heat.

Solution: Provide shade during peak heat; increase watering frequency; use mulch to retain soil moisture.

Fertilizing Guide
Fertilizing Checklist

Check fertilizer type; dilute correctly; apply during active growth; avoid winter feeding.

Fertilizing Method

Use a balanced, water-soluble fertilizer diluted to half strength; fertilize every 4–6 weeks during the growing season (spring to early fall); avoid fertilizing in winter.

Common Problems & Solutions

Yellowing leaves in Geranium sanguineum may indicate nutrient deficiencies, overwatering, or pest infestations. It can result in reduced photosynthesis, weakening the plant and potentially leading to further decline if not addressed.

Wilting in Geranium sanguineum is often a sign of water stress, either due to underwatering or root issues like root rot. Prolonged wilting can lead to cell damage and plant death.

Leaf spots on Geranium sanguineum are typically caused by fungal or bacterial pathogens. These spots can lead to defoliation, reduced photosynthesis, and weakened plant health if severe.

Rotting, particularly root or stem rot, in Geranium sanguineum is commonly caused by overwatering or poor drainage. It leads to decay of plant tissues, loss of structural integrity, and eventual plant death.

Toxicity Warning

Cats
Slightly Toxic

Cats may experience mild gastrointestinal upset if they ingest Geranium sanguineum. The plant is not highly toxic to felines but can cause discomfort if consumed in significant quantities.

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

if eaten

Prevent cats from ingesting the plant. Seek veterinary advice if ingestion is suspected or symptoms occur.
Dogs
Slightly Toxic

In dogs, ingestion of Geranium sanguineum can lead to mild gastrointestinal irritation. The plant is not considered highly toxic but can cause discomfort if consumed in large amounts.

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

if eaten

Keep pets from chewing or ingesting the plant. Monitor for symptoms and consult a veterinarian if ingestion occurs.
Humans
Slightly Toxic

Geranium sanguineum contains compounds that can cause mild gastrointestinal upset when ingested in significant quantities. The plant's effects are generally not severe but can lead to discomfort.

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

if eaten

Avoid ingestion. Wash hands after handling the plant to prevent accidental ingestion.
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 Geranium sanguineum?

A: It can be propagated by division in spring or autumn, or by seed sowing in early spring.

Q: Does Geranium sanguineum attract pollinators?

A: Yes, it attracts bees, butterflies, and other pollinators with its nectar-rich flowers.

Q: What are the ideal growing conditions for Geranium sanguineum?

A: It thrives in full sun to partial shade with well-drained soil and moderate watering.

Quick Reference
Family: Geraniaceae
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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