Hakusan burnet

sanguisorba hakusanensis

Also known as: ["Japanese burnet"]

Family: Rosaceae Genus: Sanguisorba Category: Flowers

Overview

A perennial herbaceous plant native to Japan, known for its ornamental foliage and small, inconspicuous flowers.

Benefits & Perks

["shade tolerant","wildlife attractant (bees, butterflies, birds)"]

Botanical Classification

Phylum: Magnoliophyta
Class: Magnoliopsida
Order: Rosales
Family: Rosaceae
Genus: Sanguisorba
Botanical Name: Sanguisorba hakusanensis

Plant Characteristics

Basic Information
  • Category: Flowers
  • Suitable Location: border plantings or woodland gardens
  • Suitable For:
    Beginners Outdoor Landscapers Wildlife Supporters
  • Is Weed: No
  • Allergenicity: low
Environmental Needs
  • Climate: {"temperatureRange":"–10–30°C"}
  • Hardiness: {"zones":"5–8"}
  • Misting: rarely required, only if ambient humidity is very low
  • Drainage: Well-draining to moist; avoid waterlogged conditions.
  • Soil Type: Rich, loamy soil with good organic matter; well-draining but moisture-retentive.
Maintenance Level
  • Maintenance Level: moderate
  • Toughness Level: moderate
  • Pruning Frequency: As needed, typically in late winter or early spring before new growth begins.
  • Pruning Intensity: Light to moderate; focus on removing old or diseased stems.
Care Details

Ideal Sunlight Coverage:
Full sun to partial shade; 6–8 hours of direct or dappled sunlight per day; adjust for intense summer sun.

Sunlight Tolerance Tips:
Acclimate plants gradually to intense sunlight; protect from harsh midday sun; provide shade during extreme heat.

Warning Signs: Yellowing leaves (overwatering or poor drainage); stunted growth (nutrient deficiency or compacted soil).

Care Requirements

Care Difficulty
easy

moderate

Sunlight

partial shade to full sun

Morning sun is ideal; avoid hot afternoon sun; rotate plants for even light exposure.

Watering

every 7–10 days during growing season, reduce in winter

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

Soil

moist, fertile, well-drained loam

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

Ensure good drainage; enrich with organic matter; maintain consistent moisture.

Temperature

Hardy in USDA zones 4–8; tolerates cold winters; prefers cool summers; ideal range 50–75°F (10–24°C).

Protect from frost; avoid placing near heat sources; maintain consistent temperatures.

Fertilizing

every 4–6 weeks during active growth

Fertilize sparingly; avoid fertilizing newly planted specimens; water before and after feeding.

Propagation

Methods

Division or root cuttings; division is preferred for mature plants.

Step-by-Step Propagation Guide
  1. Divide clumps into sections with roots.
  2. Replant immediately.
  3. Water well.
  4. For cuttings, take sections of root, plant horizontally, and cover lightly.

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

Environment

Cool, humid conditions; indirect light; consistent moisture.

Medium

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

Hormone

Optional, but can aid root development for cuttings.

Timeline

Division: immediate establishment; root cuttings: roots in 4–6 weeks, full plant in a season.

Tools Needed

Sharp, sterile knife or spade, trowel, rooting hormone (optional).

Quick Tips

Divide every 3–4 years to maintain vigor; ensure each division has healthy roots and shoots.

Pruning & Repotting

Pruning Guide
Method

Cut back old stems to the base; thin out crowded growth to improve air circulation.

Pruning Plan

Remove dead or damaged foliage; maintain shape and encourage airflow; minimal pruning needed.

Tools

Sharp, clean pruners or scissors.

Checklist

Sterilize tools; prune dead/damaged stems; remove crossing branches; clean up debris.

Repotting Guide
Best Season

Early spring before active growth begins.

Pot Size

For containers, use a pot one size larger with good drainage holes.

Method

Gently lift the plant; divide if necessary; replant in fresh, well-draining soil; water thoroughly.

Suggestions

Not typically required unless grown in containers; divide every 3–4 years to maintain vigor.

Checklist

Prepare new pot; gently remove plant; prune roots if needed; replant at same depth; water well.

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

Soil Improvement

Add compost or well-rotted manure; incorporate perlite or sand for drainage; mulch to retain moisture.

Temperature Stress Management
Signs of Temperature Issues

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

Cold Stress

Leaves may turn yellow or brown; growth slows; roots can be damaged in poorly drained soil during freeze.

Solution: Mulch heavily in fall; avoid overwatering before freeze; protect from harsh winds.

Hot Stress

Leaves may wilt, scorch, or drop; growth may cease; flowers may fail to develop.

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

Fertilizing Guide
Fertilizing Checklist

Use balanced fertilizer; apply in spring; avoid late-season feeding.

Fertilizing Method

Use a balanced, slow-release fertilizer in early spring; avoid high-nitrogen formulas; reduce or stop fertilizing in late summer/autumn.

Common Problems & Solutions

Yellow leaves may indicate nutrient deficiencies, overwatering, or pest infestations, leading to reduced photosynthesis and overall plant vigor.

Wilting can result from water stress, root damage, or pest infestations, impairing the plant's ability to transport water and nutrients.

Leaf spots, typically caused by fungal or bacterial pathogens, can reduce photosynthetic efficiency and, if severe, lead to leaf drop.

Rotting, often caused by fungal infections or overwatering, can lead to the decay of roots or stems, compromising the plant's structural integrity and nutrient uptake.

Toxicity Warning

Cats
Non-toxic

Sanguisorba hakusanensis is not known to be toxic to cats. It poses no significant health risks if ingested or handled.

⚡ Toxic If:

None

No specific safety precautions are necessary for cats around this plant.
Dogs
Non-toxic

Sanguisorba hakusanensis is not known to be toxic to dogs. It poses no significant health risks if ingested or handled.

⚡ Toxic If:

None

No specific safety precautions are necessary for dogs around this plant.
Humans
Non-toxic

Sanguisorba hakusanensis is not known to exhibit any toxic properties to humans. It is generally considered safe for consumption and handling.

⚡ Toxic If:

None

No specific safety precautions are necessary for handling or consuming this plant.

Frequently Asked Questions

Q: Is Sanguisorba hakusanensis toxic to pets?

A: No, it is non-toxic to dogs and cats.

Q: Does this plant require full sun?

A: It can tolerate partial shade and is suitable for shaded garden areas.

Q: What are the common issues with this plant?

A: Yellow leaves and wilting are the most frequent problems, often due to overwatering or poor drainage.

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