Greater Burnet Saxifrage
pimpinella major
Also known as: ["Great Burnet Saxifrage","Hog's Fennel"]
Overview
A herbaceous perennial plant in the Apiaceae family, known for its feathery foliage and small white flowers.
Benefits & Perks
["wildlife attractant (bees, butterflies, birds)","aesthetic foliage"]
Botanical Classification
| Phylum: | Magnoliophyta |
| Class: | Magnoliopsida |
| Order: | Apiales |
| Family: | Apiaceae |
| Genus: | Pimpinella |
| Botanical Name: | Pimpinella major |
Plant Characteristics
Basic Information
- Category: Herbs & Weeds
- Suitable Location: garden bed or border in a sunny to partially shaded area
- Suitable For:
- 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: Moderate to fast-draining; avoid waterlogged conditions.
- Soil Type: Well-draining, loamy soil with added organic matter; can tolerate average garden soil.
Maintenance Level
- Maintenance Level: moderate
- Toughness Level: moderate
- Pruning Frequency: Annually in late winter or early spring; light pruning can be done as needed.
- Pruning Intensity: Moderate; remove up to one-third of the plant if overgrown, but avoid heavy pruning in late summer.
Care Details
Ideal Sunlight Coverage:
Full sun to partial shade; 6–8 hours of direct or bright indirect light 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.
Care Requirements
Care Difficulty
moderatemoderate
Sunlight
full sun to partial shade
Rotate plant for even light exposure; use sheer curtains to filter intense sun; avoid placing in drafty areas.
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-drained, fertile loam
pH: Slightly acidic to neutral (pH 6.0–7.0).
Ensure good drainage; avoid compacted soil; enrich with organic matter annually.
Temperature
Prefers cool to moderate temperatures (60–75°F or 15–24°C); tolerates cooler conditions but avoids frost.
Avoid sudden temperature changes; protect from frost; ensure good air circulation.
Fertilizing
every 4–6 weeks during spring and summer
Fertilize only when actively growing; flush soil occasionally to prevent salt buildup; use a balanced formula.
Propagation
Methods
Stem cuttings or division; stem cuttings are more common for home growers.
Step-by-Step Propagation Guide
- Take a 4–6 inch cutting.
- Remove lower leaves.
- Dip in rooting hormone (optional).
- Plant in medium.
- Keep moist and warm.
Best Time: Spring or early summer when the plant is actively growing.
Environment
Warm, humid environment with indirect light; maintain consistent moisture.
Medium
Well-draining potting mix with perlite or sand; can also root in water initially.
Hormone
Rooting hormone is optional but recommended for faster rooting.
Timeline
Roots typically develop in 3–6 weeks; new growth may take an additional 2–3 months.
Tools Needed
Pruning shears, rooting hormone, small pots, well-draining medium.
Quick Tips
Use healthy, non-flowering stems; keep cuttings out of direct sun; maintain humidity with a plastic bag or dome.
Pruning & Repotting
Pruning Guide
Method
Use clean, sharp tools; cut just above a leaf node or bud; remove dead or crossing branches.
Pruning Plan
Prune to maintain shape, encourage bushier growth, and remove dead or diseased parts.
Tools
Pruning shears, sterilizing solution, gloves.
Checklist
Sterilize tools; prune dead/diseased parts; shape the plant; clean up debris.
Repotting Guide
Best Season
Spring, before the active growing season begins.
Pot Size
Increase pot size by 1–2 inches in diameter; ensure good drainage.
Method
Remove plant gently; trim any circling roots; 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 root health and growth.
Checklist
Choose appropriate pot; prepare fresh soil; handle roots carefully; water after repotting.
Advanced Care Tips
Watering Mastery
Watering Checklist
Check soil moisture; water deeply; ensure drainage; avoid wetting foliage.
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 minimize evaporation and fungal growth.
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 for fertility; mix in perlite or sand for drainage.
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, and can lead to frost damage if temperatures drop below freezing.
Solution: Protect from frost with a cover; move potted plants indoors; avoid placing near cold drafts.
Hot Stress
Leaves may scorch, wilt, or drop; growth may slow due to excessive heat.
Solution: Provide shade during peak heat; increase watering; use mulch to retain soil moisture.
Fertilizing Guide
Fertilizing Checklist
Check growth phase; dilute fertilizer; apply to moist soil; avoid contact with foliage.
Fertilizing Method
Use a balanced liquid fertilizer diluted to half strength every 4–6 weeks during the growing season (spring to early fall); avoid fertilizing in winter.
Common Problems & Solutions
Toxicity Warning
Cats
Slightly ToxicCats may experience mild gastrointestinal upset if they ingest Pimpinella major seeds or roots. The plant is not highly toxic to felines but can cause mild symptoms.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Dogs
Slightly ToxicIn dogs, ingestion of Pimpinella major seeds and roots may lead to mild gastrointestinal upset. The plant is not considered highly toxic to canines but can cause discomfort.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Humans
Slightly ToxicPimpinella major contains compounds that can cause mild gastrointestinal distress and allergic reactions in some individuals. The plant is not highly toxic but can induce discomfort if ingested in significant quantities.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Frequently Asked Questions
Q: Is Pimpinella major edible?
A: While some Pimpinella species are used in culinary applications, P. major is not commonly consumed and its edibility is not well-documented.
Q: Does Pimpinella major attract wildlife?
A: Yes, it is known to attract bees, butterflies, and other pollinators.
Q: How should Pimpinella major be cared for?
A: It prefers well-drained soil and partial shade, with moderate watering and occasional pruning to maintain shape.
Quick Reference
| Family: | Apiaceae |
| Care: | moderate |
| Light: | full sun to partial shade |
| Water: | every 7–10 days during activ |
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