Black Locust
astragalus hypoglottis
Also known as: ["Black Locust","Astragalus hypoglottis"]
Overview
A small, low-growing perennial herb in the legume family, native to Europe and parts of Asia.
Benefits & Perks
["wildlife attractant (bees, butterflies, birds)","drought tolerant"]
Botanical Classification
| Phylum: | Magnoliophyta |
| Class: | Magnoliopsida |
| Order: | Fabales |
| Family: | Fabaceae |
| Genus: | Astragalus |
| Botanical Name: | Astragalus hypoglottis |
Plant Characteristics
Basic Information
- Category: Herbs & Weeds
- Suitable Location: rock gardens, alpine troughs, or sunny borders
- Suitable For:
- Is Weed: No
- Allergenicity: low
Environmental Needs
- Climate: {"temperatureRange":"–15–30°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.
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.
Care Details
Ideal Sunlight Coverage:
Full sun to partial shade (4–6 hours of direct sunlight daily); tolerates some shade in hot climates.
Sunlight Tolerance Tips:
Acclimate gradually to intense sunlight; protect from harsh afternoon sun; adjust placement based on seasonal light changes.
Care Requirements
Care Difficulty
moderatemoderate
Sunlight
full sun to partial shade
Rotate plant for even light exposure; use sheer curtains to filter intense sun; monitor for sunburn.
Watering
every 7–10 days during active growth, reduce in winter
Water thoroughly but infrequently; ensure soil dries between waterings; avoid overwatering.
Soil
well-drained, sandy loam with moderate organic content
pH: Slightly alkaline to neutral (pH 6.5–7.5).
Use a mix of potting soil and perlite; avoid heavy clay soils; check drainage before planting.
Temperature
Prefers cool to moderate temperatures (60–75°F or 15–24°C); can tolerate cooler conditions but avoid frost.
Avoid sudden temperature changes; protect from drafts; maintain consistent indoor temperatures.
Fertilizing
every 4–6 weeks during spring and summer, none in winter
Fertilize only when actively growing; flush soil occasionally to prevent salt buildup; use organic options for gentle feeding.
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.
- Plant in medium.
- Keep moist and warm.
Best Time: Spring or early summer when the plant is actively growing.
Environment
Warm (70–75°F or 21–24°C), humid, and bright indirect light.
Medium
Well-draining potting mix (e.g., perlite and peat moss blend).
Hormone
Optional but recommended for faster rooting.
Timeline
Roots develop in 3–6 weeks; new growth appears in 2–3 months.
Tools Needed
Pruning shears, rooting hormone, small pots, well-draining mix.
Quick Tips
Use healthy, non-flowering stems; maintain high humidity with a plastic cover; avoid overwatering.
Pruning & Repotting
Pruning Guide
Method
Pinch back tips for bushiness; cut just above a leaf node or bud.
Pruning Plan
Prune to maintain shape, encourage bushiness, and remove dead or diseased growth.
Tools
Clean, sharp pruning shears or scissors.
Checklist
Sanitize tools; prune dead/damaged growth; shape the plant; dispose of clippings.
Repotting Guide
Best Season
Early spring before new growth begins.
Pot Size
Choose a pot 1–2 inches larger in diameter than the current one.
Method
Remove plant gently; trim roots if needed; place in a new pot with fresh soil; water lightly.
Suggestions
Repot every 2–3 years or when roots fill the pot; beneficial for growth and soil freshness.
Checklist
Check root bound status; prepare new pot with drainage; use fresh soil mix; water after repotting.
Advanced Care Tips
Watering Mastery
Watering Checklist
Check soil moisture; water deeply; ensure drainage; adjust for season.
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.
Watering Schedule Tips
Water deeply once the top inch of soil is dry; reduce frequency in winter to prevent root rot.
Soil Improvement
Add perlite or sand for drainage; incorporate compost for fertility; ensure good aeration.
Temperature Stress Management
Signs of Temperature Issues
Wilting, yellowing leaves, or stunted growth in extreme heat or cold; leaf drop in sudden temperature shifts.
Cold Stress
Slows growth; may enter dormancy; prolonged exposure can damage roots or cause dieback.
Solution: Protect from frost; provide a sheltered location; use mulch to insulate roots.
Hot Stress
Leaves may scorch, wilt, or drop; growth may slow; increased water demand.
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; apply every 4–6 weeks during growing season (spring to early fall); avoid fertilizing in winter.
Common Problems & Solutions
Toxicity Warning
Cats
Non-toxicAstragalus hypoglottis is not known to be toxic to cats. There are no documented cases of adverse effects in felines following exposure to this plant.
⚡ Toxic If:
not applicable
Dogs
Non-toxicAstragalus hypoglottis is not known to be toxic to dogs. There are no documented cases of adverse effects in canines following exposure to this plant.
⚡ Toxic If:
not applicable
Humans
Non-toxicAstragalus hypoglottis is not known to exhibit toxic properties to humans under normal circumstances. It is generally considered safe for human contact and consumption.
⚡ Toxic If:
not applicable
Frequently Asked Questions
Q: Is Astragalus hypoglottis toxic to pets?
A: It is mildly toxic to dogs and cats if ingested.
Q: Does this plant attract wildlife?
A: Yes, it attracts bees, butterflies, and birds.
Q: How difficult is it to care for?
A: It requires moderate care and maintenance.
Quick Reference
| Family: | Fabaceae |
| Care: | moderate |
| Light: | full sun to partial shade |
| Water: | every 7–10 days during activ |
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