Black Parsley

oreoselinum nigrum

Also known as: ["Black Parsley","Wild Celery"]

Family: Apiaceae Genus: Oreoselinum Category: Herbs & Weeds

Overview

A perennial herbaceous plant with dark green leaves and small white flowers, native to Europe and Asia.

Benefits & Perks

["wildlife attractant (bees, butterflies, birds)","aesthetic foliage"]

Botanical Classification

Phylum: Magnoliophyta
Class: Magnoliopsida
Order: Apiales
Family: Apiaceae
Genus: Oreoselinum
Botanical Name: Oreoselinum nigrum

Plant Characteristics

Basic Information
  • Category: Herbs & Weeds
  • Suitable Location: garden bed or container in a location with good air circulation
  • Suitable For:
    Collectors & Enthusiasts 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 waterlogging.
  • Soil Type: Rich, well-draining soil with organic matter like compost or peat.
Maintenance Level
  • Maintenance Level: moderate
  • Toughness Level: moderate
  • Pruning Frequency: Annually in early spring or after flowering.
  • Pruning Intensity: Moderate; remove up to one-third of old growth if needed.
Care Details

Ideal Sunlight Coverage:
Bright indirect light for 6–8 hours daily; tolerates partial shade, especially in hot climates.

Sunlight Tolerance Tips:
Acclimate gradually to intense light; protect from harsh afternoon sun; adjust placement based on season.

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

Care Requirements

Care Difficulty
moderate

moderate

Sunlight

full sun to partial shade

Rotate plant weekly; use sheer curtains for direct light; move outdoors in mild weather.

Watering

every 7–10 days, allowing soil to dry slightly between waterings

Water thoroughly but infrequently; ensure proper drainage; avoid wetting foliage.

Soil

well-drained, fertile loam with moderate organic matter

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

Ensure pots have drainage holes; avoid heavy clay soils; amend with organic matter.

Temperature

Prefers 60–75°F (15–24°C); cooler temperatures (50–60°F) acceptable in winter.

Avoid sudden temperature changes; protect from frost; ensure good air circulation.

Fertilizing

every 4–6 weeks during active growth with balanced liquid fertilizer

Fertilize after watering; flush soil occasionally to prevent salt buildup; stop in fall/winter.

Propagation

Methods

Stem cuttings or division; seeds can also be used but take longer to establish.

Step-by-Step Propagation Guide
  1. Take cutting.
  2. Apply hormone.
  3. Plant in medium.
  4. Maintain humidity.
  5. Wait for roots.

Best Time: Spring or early summer when growth is active.

Environment

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

Medium

Well-draining mix like peat and perlite or cactus soil.

Hormone

Optional but recommended for faster rooting.

Timeline

Roots in 3–6 weeks; mature plant in 3–6 months.

Tools Needed

Pruners, rooting hormone, pots, humidity dome.

Quick Tips

Use healthy parent plant; keep soil moist; provide bottom heat if possible.

Pruning & Repotting

Pruning Guide
Method

Cut stems just above a leaf node or bud; thin out crowded areas.

Pruning Plan

Remove dead or overgrown stems to maintain shape and encourage bushier growth.

Tools

Pruning shears, sterilizing solution, gloves.

Checklist

Sterilize tools; cut at correct angle; remove debris; clean up afterward.

Repotting Guide
Best Season

Early spring before active growth begins.

Pot Size

Increase pot size by 2–3 inches in diameter.

Method

Remove plant gently; trim roots if needed; use fresh soil; ensure drainage.

Suggestions

Repot every 2–3 years or when roots fill the pot; prevents root-bound issues.

Checklist

Check root health; prepare new pot; use fresh soil; water after repotting.

Advanced Care Tips

Watering Mastery
Watering Checklist

Check soil moisture; water at base; ensure drainage; avoid wet leaves.

How to Apply Water Properly

Water directly at the root zone until water drains from the bottom; allow excess to drain fully; water in the morning to reduce evaporation.

Pro Tip: Use room temperature water to avoid shocking the roots.
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 sand for drainage; incorporate compost for fertility.

Temperature Stress Management
Signs of Temperature Issues

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

Cold Stress

Slows growth; may cause leaf drop or browning in prolonged cold.

Solution: Move to a warmer spot; insulate pots; avoid cold drafts.

Hot Stress

Leaf scorch, wilting, or drooping in excessive heat.

Solution: Provide shade; increase humidity; water more frequently but avoid waterlogging.

Fertilizing Guide
Fertilizing Checklist

Check season; dilute fertilizer; apply to moist soil; rinse pot periodically.

Fertilizing Method

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

Common Problems & Solutions

Yellow leaves in Oreoselinum nigrum may indicate nutrient deficiencies, overwatering, or pest infestations, affecting the plant's overall health and photosynthetic efficiency.

Wilting in Oreoselinum nigrum is often a sign of water stress, either due to under or overwatering, disrupting nutrient uptake and potentially leading to plant death if not addressed.

Leaf spots on Oreoselinum nigrum may be caused by fungal or bacterial infections, resulting in reduced photosynthesis and potential leaf drop.

Rotting, particularly root rot, can occur in Oreoselinum nigrum due to excessive moisture, leading to decay of root systems and eventual plant decline.

Toxicity Warning

Cats
Slightly Toxic

Cats may experience mild gastrointestinal upset if they ingest Oreoselinum nigrum. The roots and seeds are the most toxic parts, capable of causing irritation to the feline digestive tract.

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

if eaten

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

In dogs, ingestion of Oreoselinum nigrum can lead to mild gastrointestinal upset. The roots and seeds are the primary toxic components, which may cause irritation to the dog's digestive system.

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

if eaten

Keep pets away from the plant, especially roots and seeds. Contact a veterinarian if ingestion is suspected.
Humans
Slightly Toxic

Oreoselinum nigrum contains compounds that can cause mild gastrointestinal distress and allergic reactions in some individuals. The roots and seeds are the most toxic parts, containing substances that may irritate the digestive tract.

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

if eaten

Avoid consumption of roots and seeds. Wash hands thoroughly 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: Is Oreoselinum nigrum edible?

A: Its edibility is uncertain; it is not commonly consumed and may be toxic.

Q: How does Oreoselinum nigrum grow?

A: It prefers moist, well-drained soil and partial shade.

Q: Does Oreoselinum nigrum attract wildlife?

A: Yes, it attracts bees and butterflies.

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