Fernleaf Peony

paeonia tenuifolia

Also known as: ["Fernleaf Peony","Featherleaf Peony"]

Family: Paeoniaceae Genus: Paeonia Category: Flowers

Overview

A deciduous herbaceous perennial with finely divided, fern-like foliage and showy, bright red flowers in late spring to early summer.

Benefits & Perks

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

Botanical Classification

Phylum: Magnoliophyta
Class: Magnoliopsida
Order: Saxifragales
Family: Paeoniaceae
Genus: Paeonia
Botanical Name: Paeonia tenuifolia

Plant Characteristics

Basic Information
  • Category: Flowers
  • Suitable Location: garden bed with good air circulation, protected from strong winds
  • Suitable For:
    Beginners Collectors & Enthusiasts Outdoor Landscapers Wildlife Supporters
  • Is Weed: No
  • Allergenicity: low
Environmental Needs
  • Climate: {"temperatureRange":"–30–30°C"}
  • Hardiness: {"zones":"3–8"}
  • Misting: rarely required, only if ambient humidity is very low
  • Drainage: Well-draining to slightly moisture-retentive.
  • Soil Type: Rich, loamy soil with good organic matter; well-draining but moisture-retentive.
Maintenance Level
  • Maintenance Level: moderate
  • Toughness Level: moderate
  • Pruning Frequency: Annually in late autumn or early spring; light pruning after flowering if necessary.
  • Pruning Intensity: Light to moderate; avoid heavy pruning unless necessary for division or rejuvenation.
Care Details

Ideal Sunlight Coverage:
Full sun (6–8 hours/day); tolerates partial shade in hot climates.

Sunlight Tolerance Tips:
Acclimate gradually to full sun; protect from intense midday sun in hot regions; ensure good air circulation to prevent fungal issues.

Warning Signs: Yellowing leaves (overwatering or poor drainage); stunted growth (nutrient deficiency or compacted soil); mold or mildew (poor air circulation or excessive moisture).

Care Requirements

Care Difficulty
moderate

moderate

Sunlight

full sun to partial shade

Morning sun is ideal; avoid harsh afternoon sun in summer; rotate pots for even light exposure.

Watering

every 7–10 days during growing season, less frequently in winter

Water thoroughly but infrequently; avoid waterlogged soil; ensure good drainage.

Soil

well-drained, fertile, loamy soil

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

Avoid heavy clay soils; ensure good drainage; enrich with organic matter annually.

Temperature

Hardy in USDA zones 3–8; prefers cool winters and moderate summers; ideal range 60–75°F (15–24°C).

Protect from late spring frosts; ensure good air circulation in summer; avoid placing near heat sources.

Fertilizing

every 4–6 weeks during spring and summer with balanced fertilizer

Fertilize sparingly; avoid fertilizing during dormancy; water before and after applying fertilizer.

Propagation

Methods

Division of rhizomes; stem cuttings can be attempted but are less reliable.

Step-by-Step Propagation Guide
  1. Divide rhizomes with a sharp, sterile knife.
  2. Ensure each division has buds.
  3. Replant immediately at the same depth.

Best Time: Early autumn or early spring when the plant is dormant or just beginning growth.

Environment

Cool, humid environment with indirect light; protect from extreme temperatures.

Medium

Well-draining soil mix with added sand or perlite; can also be propagated in water initially.

Hormone

Optional, but can help with stem cuttings; not necessary for division.

Timeline

Division: immediate establishment; stem cuttings: roots in 4–6 weeks, full establishment in 1–2 years.

Tools Needed

Sharp knife, sterile cutting tools, gloves, rooting hormone (optional).

Quick Tips

Divide every 3–5 years to maintain vigor; ensure divisions have healthy roots and buds; water well after division.

Pruning & Repotting

Pruning Guide
Method

Cut back dead or weak stems to the base; thin out overcrowded stems; shape by removing wayward growth.

Pruning Plan

Remove dead or damaged foliage annually; thin out crowded stems to improve air circulation; shape as needed after flowering.

Tools

Sharp bypass pruners, clean shears, gloves.

Checklist

Sterilize tools; prune dead or damaged stems; thin overcrowded growth; shape plant as desired.

Repotting Guide
Best Season

Early autumn or early spring when the plant is dormant.

Pot Size

Increase pot size by 2–3 inches if repotting is necessary; ensure the new container has drainage holes.

Method

Use a well-draining soil mix; ensure the crown is at or slightly below soil level; water thoroughly after repotting.

Suggestions

Not typically required; peonies are long-lived and resent disturbance; only repot if severely overcrowded or diseased.

Checklist

Choose appropriate container; prepare well-draining soil; 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, focusing on the root zone; water early in the morning to reduce evaporation; ensure water penetrates deeply but does not pool.

Pro Tip: Use a soaker hose to deliver water directly to the roots, minimizing leaf wetness.
Watering Schedule Tips

Water deeply once a week during active growth, reducing frequency in winter; adjust based on rainfall and soil moisture.

Soil Improvement

Add compost or well-rotted manure; incorporate perlite or sand for drainage; ensure organic matter is well-mixed.

Temperature Stress Management
Signs of Temperature Issues

Leaf scorch in excessive heat; delayed blooming in cold stress; bud drop in temperature fluctuations.

Cold Stress

Slows growth; may cause leaf discoloration; can lead to winter dieback if not properly mulched.

Solution: Apply a thick layer of mulch in fall; avoid planting in frost pockets; protect from harsh winter winds.

Hot Stress

Wilting; reduced flowering; increased susceptibility to pests and diseases.

Solution: Provide afternoon shade; increase watering frequency; use reflective mulch to keep roots cool.

Fertilizing Guide
Fertilizing Checklist

Use balanced fertilizer; apply in early spring; avoid over-fertilization; stop in late summer.

Fertilizing Method

Use a balanced, slow-release fertilizer in early spring; avoid high-nitrogen formulas; discontinue in late summer to prepare for dormancy.

Common Problems & Solutions

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

Wilting in Paeonia tenuifolia can result from water stress, either due to drought or overwatering, leading to reduced turgor pressure and potential plant death.

Leaf spots on Paeonia tenuifolia are often caused by fungal or bacterial pathogens, leading to reduced photosynthetic efficiency and potential defoliation.

Rotting, particularly root or stem rot, can occur in Paeonia tenuifolia due to excessive moisture or fungal infections, causing decay and eventual plant decline.

Toxicity Warning

Cats
Non-toxic

Paeonia tenuifolia is not considered toxic to cats. The plant does not produce any known toxins that would cause adverse effects in felines.

⚡ Toxic If:

Generally non-toxic to cats

While non-toxic, it is best to prevent cats from ingesting any part of ornamental plants to avoid potential gastrointestinal upset.
Dogs
Non-toxic

Paeonia tenuifolia is not considered toxic to dogs. There are no documented cases of toxicity in canines from exposure to this plant.

⚡ Toxic If:

Generally non-toxic to dogs

While non-toxic, monitor pets to prevent excessive ingestion of any plant material.
Humans
Non-toxic

Paeonia tenuifolia is not considered toxic to humans under normal circumstances. The plant does not produce any known toxins that would cause adverse effects when ingested or handled.

⚡ Toxic If:

Generally non-toxic to humans

While non-toxic, it is always advisable to avoid ingesting any part of ornamental plants.

Frequently Asked Questions

Q: How do I care for Paeonia tenuifolia?

A: Plant in full sun to partial shade with well-drained soil. Water regularly during the growing season and apply a balanced fertilizer in early spring.

Q: Is Paeonia tenuifolia toxic to pets?

A: Yes, it is mildly toxic to dogs and cats if ingested.

Q: Does Paeonia tenuifolia attract wildlife?

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

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