Rock Sainfoin
onobrychis saxatilis
Also known as: ["Rock Sainfoin","Saxatile Sainfoin"]
Overview
A perennial legume native to rocky habitats, valued for its ornamental and ecological benefits.
Benefits & Perks
["drought tolerant","wildlife attractant (bees, butterflies, birds)","low maintenance"]
Botanical Classification
| Phylum: | Magnoliophyta |
| Class: | Magnoliopsida |
| Order: | Fabales |
| Family: | Fabaceae |
| Genus: | Onobrychis |
| Botanical Name: | Onobrychis saxatilis |
Plant Characteristics
Basic Information
- Category: Flowers
- Suitable Location: rock gardens, slopes, or raised beds with good drainage
- Suitable For:
- Is Weed: No
- Allergenicity: low
Environmental Needs
- Climate: {"temperatureRange":"–10–35°C"}
- Hardiness: {"zones":"4–8"}
- Misting: rarely required, only if ambient humidity is very low
- Drainage: Fast-draining to prevent waterlogging.
- Soil Type: Well-draining, loamy soil with added organic matter for fertility.
Maintenance Level
- Maintenance Level: low
- Toughness Level: high
- Pruning Frequency: Light pruning can be done as needed; major pruning is best done in early spring before new growth begins.
- Pruning Intensity: Light to moderate; avoid heavy pruning unless necessary to control size or shape.
Care Details
Ideal Sunlight Coverage:
Bright indirect light for 6–8 hours daily; can tolerate partial shade, especially in hot climates; adjust exposure based on seasonal light intensity.
Sunlight Tolerance Tips:
Acclimate the plant gradually to intense sunlight to prevent scorching; place in a spot with filtered light during peak summer hours; for indoor plants, rotate regularly to ensure even light exposure.
Care Requirements
Care Difficulty
easymoderate
Sunlight
full sun to partial shade
Avoid direct midday sun; provide shade during extreme heat; rotate plant weekly for balanced growth.
Watering
every 7–10 days during active growth, reduce in winter
Water thoroughly until it drains from the bottom, avoid frequent shallow watering, and adjust frequency based on season and weather conditions.
Soil
well-draining, sandy loam with moderate organic content
pH: Slightly acidic to neutral (pH 6.0–7.0).
Use a mix of potting soil and perlite; avoid heavy clay soils; ensure pots have drainage holes.
Temperature
Prefers moderate temperatures between 60–75°F (15–24°C); can tolerate cooler temperatures down to 50°F (10°C) but avoid prolonged exposure below 40°F (4°C).
Protect from frost; avoid placing near heating/cooling vents; maintain consistent temperatures for optimal growth.
Fertilizing
every 4–6 weeks during spring and summer, none in winter
Apply fertilizer after watering to prevent root burn; flush soil occasionally to prevent salt buildup; match fertilizer to plant's growth phase.
Propagation
Methods
Stem cuttings or division; stem cuttings are more common for home growers.
Step-by-Step Propagation Guide
- Take a healthy cutting, apply rooting hormone, plant in moist medium, maintain humidity, and wait for roots to develop.
Best Time: Spring or early summer when the plant is actively growing.
Environment
Warm, humid environment with indirect light and consistent moisture.
Medium
Well-draining potting mix with perlite or sand for added aeration.
Hormone
Rooting hormone is recommended to improve success rates.
Timeline
Roots typically develop in 3–6 weeks; new growth may appear after 2–3 months.
Tools Needed
Pruning shears, rooting hormone, small pots, well-draining soil mix, plastic wrap or propagator.
Quick Tips
Use healthy, non-flowering stems; maintain high humidity; avoid direct sunlight during rooting.
Pruning & Repotting
Pruning Guide
Method
Use clean cuts just above a leaf node or branch junction; remove dead or crossing branches.
Pruning Plan
Prune to maintain shape, encourage bushier growth, and remove dead or diseased parts.
Tools
Pruning shears, sterilized scissors, gloves.
Checklist
Sterilize tools; prune during dormancy or early growth; remove dead/diseased parts; shape as desired.
Repotting Guide
Best Season
Early spring before active growth begins.
Pot Size
Choose a pot one size larger (1–2 inches in diameter) than the current one.
Method
Remove plant gently, trim roots if necessary, place in a slightly larger pot with fresh soil, and water lightly.
Suggestions
Repot every 2–3 years or when roots fill the pot; beneficial for refreshing soil and providing more space.
Checklist
Select appropriate pot size; prepare fresh soil mix; handle roots carefully; water after repotting.
Advanced Care Tips
Watering Mastery
Watering Checklist
Check soil moisture before watering; water deeply; ensure proper drainage; adjust frequency seasonally.
How to Apply Water Properly
Water directly at the root zone, ensuring even moisture distribution without saturating the soil; water early in the morning to minimize evaporation and allow foliage to dry before nightfall.
Watering Schedule Tips
Water deeply once every 7–10 days during active growth in spring and summer; reduce frequency to every 2–3 weeks in fall and winter, allowing soil to dry completely between waterings.
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, yellowing leaves, stunted growth, or leaf drop in response to extreme heat or cold.
Cold Stress
Low temperatures can slow growth, cause leaf discoloration, and increase susceptibility to root rot if soil remains wet.
Solution: Move the plant to a warmer location, protect from drafts, and reduce watering to prevent cold-induced root issues.
Hot Stress
Excessive heat can lead to leaf scorch, dehydration, and wilting, especially if combined with intense sunlight.
Solution: Provide shade during peak heat, increase humidity, and water more frequently to compensate for evaporation.
Fertilizing Guide
Fertilizing Checklist
Use diluted fertilizer; fertilize during active growth; avoid over-fertilization; flush soil periodically.
Fertilizing Method
Use a balanced, water-soluble fertilizer diluted to half strength every 4–6 weeks during spring and summer; avoid fertilizing in fall and winter.
Common Problems & Solutions
Toxicity Warning
Cats
Non-toxicOnobrychis saxatilis is not known to be toxic to cats. It does not pose any significant health risks upon ingestion or contact.
⚡ Toxic If:
None
Dogs
Non-toxicOnobrychis saxatilis is not known to be toxic to dogs. It poses no significant health risks upon ingestion or contact.
⚡ Toxic If:
None
Humans
Non-toxicOnobrychis saxatilis is not known to exhibit toxic properties to humans. It is generally considered safe for consumption and handling.
⚡ Toxic If:
None
Frequently Asked Questions
Q: Is Onobrychis saxatilis toxic to pets?
A: No, it is non-toxic to dogs and cats.
Q: Does this plant require frequent watering?
A: No, it is drought tolerant and requires minimal watering once established.
Q: Does Onobrychis saxatilis attract wildlife?
A: Yes, it attracts bees, butterflies, and birds, making it beneficial for wildlife gardens.
Quick Reference
| Family: | Fabaceae |
| Care: | easy |
| Light: | full sun to partial shade |
| Water: | every 7–10 days during activ |
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