Oolentangy aster
symphyotrichum oolentangiense
Also known as: ["Oolentangy aster","Oolentangy River aster"]
Overview
A perennial wildflower native to North America, known for its daisy-like flowers with lavender-blue rays and yellow centers.
Benefits & Perks
["wildlife attractant (bees, butterflies, birds)","drought tolerant","low maintenance"]
Botanical Classification
| Phylum: | Magnoliophyta |
| Class: | Magnoliopsida |
| Order: | Asterales |
| Family: | Asteraceae |
| Genus: | Symphyotrichum |
| Botanical Name: | Symphyotrichum oolentangiense |
Plant Characteristics
Basic Information
- Category: Flowers
- Suitable Location: garden bed in open, sunny area
- Suitable For:
- Is Weed: No
- Allergenicity: low
Environmental Needs
- Climate: {"temperatureRange":"–34–38°C"}
- Hardiness: {"zones":"3–8"}
- 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: Deadhead spent flowers throughout the growing season; prune back by one-third in late fall or early spring.
- Pruning Intensity: Moderate; focus on removing dead or overgrown stems without drastically reducing size.
Care Details
Ideal Sunlight Coverage:
Full sun (6–8 hours of direct sunlight daily). Tolerates partial shade but may produce fewer blooms.
Sunlight Tolerance Tips:
Acclimate plants gradually to intense sunlight if moved from shade. Protect from harsh afternoon sun in hot climates to prevent scorching. Outdoor placement is ideal for full sun exposure.
Care Requirements
Care Difficulty
easymoderate
Sunlight
full sun
Rotate plants for even light exposure; use shade cloth in extreme heat; ensure unobstructed sunlight.
Watering
every 7–10 days during active growth, less frequently in winter
Water thoroughly but infrequently; ensure soil dries slightly between waterings; avoid overwatering to prevent root rot.
Soil
well-drained, loamy or sandy soil
pH: Slightly acidic to neutral (pH 6.0–7.0).
Avoid heavy clay soils; amend with organic matter; ensure good aeration.
Temperature
Prefers cool to moderate temperatures (60–75°F or 15–24°C). Tolerates cold down to -30°F (-34°C) but thrives in moderate conditions.
Protect from frost in early spring; avoid placing in drafty areas; maintain moderate humidity.
Fertilizing
every 4–6 weeks during spring and summer with balanced liquid fertilizer
Fertilize sparingly to avoid excessive foliage growth; apply before active growth begins; flush soil occasionally to prevent salt buildup.
Propagation
Methods
Stem cuttings or division in early spring.
Step-by-Step Propagation Guide
- Take 4–6 inch cuttings.
- Remove lower leaves.
- Dip in rooting hormone (optional).
- Plant in medium.
- Maintain humidity.
Best Time: Early spring or late summer when the plant is not in full bloom.
Environment
Warm, humid conditions with indirect light and consistent moisture.
Medium
Well-draining potting mix with perlite or sand.
Hormone
Optional, but rooting hormone can improve success rates.
Timeline
Roots develop in 3–6 weeks; establishment takes 1–2 growing seasons.
Tools Needed
Pruning shears, rooting hormone, small pots, misting spray bottle.
Quick Tips
Use healthy, non-flowering stems; maintain high humidity; avoid direct sunlight during rooting.
Pruning & Repotting
Pruning Guide
Method
Pinch back tips for bushier growth; cut stems just above a leaf node or lateral bud.
Pruning Plan
Remove spent flowers to encourage reblooming and maintain plant shape.
Tools
Clean bypass pruners, gloves, disinfectant for tools.
Checklist
Sterilize tools; prune dead or damaged stems; shape the plant; clean up debris after pruning.
Repotting Guide
Best Season
Early spring before new growth begins.
Pot Size
Increase pot size by 2–3 inches in diameter.
Method
Remove plant gently; trim any circling roots; place in a slightly larger pot with fresh, well-draining soil; water thoroughly.
Suggestions
Repot every 2–3 years or when the plant becomes root-bound. Necessary to refresh soil and provide space for growth.
Checklist
Choose 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 at the base of the plant, ensuring moisture reaches the root zone. Apply until water drains from the bottom, then allow the soil to dry before the next watering.
Watering Schedule Tips
Water deeply once every 7–10 days during active growth, reducing frequency to every 2–3 weeks in winter. Adjust based on rainfall and soil moisture retention.
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
Chlorosis or wilting in excessive heat; stunted growth or bud drop in cold stress.
Cold Stress
Low temperatures slow growth and may cause leaf discoloration, but the plant is generally cold-hardy.
Solution: Provide winter protection with mulch in colder zones. Avoid overwatering in cold periods to prevent root damage.
Hot Stress
Excessive heat can lead to wilting, leaf scorch, or reduced flowering.
Solution: Provide afternoon shade in hot climates; increase watering frequency; use mulch to retain soil moisture.
Fertilizing Guide
Fertilizing Checklist
Use balanced fertilizer; apply in spring; avoid over-fertilization; water after application.
Fertilizing Method
Use a balanced, slow-release fertilizer in early spring. Apply lightly, following package dilution rates, and avoid fertilizing in late fall or winter.
Common Problems & Solutions
Toxicity Warning
Cats
Non-toxicSymphyotrichum oolentangiense is not toxic to cats. The plant has no known harmful effects on felines when ingested.
⚡ Toxic If:
if eaten
Dogs
Non-toxicSymphyotrichum oolentangiense is not toxic to dogs. There are no documented cases of adverse effects from ingestion of this plant by canines.
⚡ Toxic If:
if eaten
Humans
Non-toxicSymphyotrichum oolentangiense, commonly known as Oklahoma aster, is not considered toxic to humans. It is a native wildflower that has no known adverse physiological effects when ingested in typical quantities.
⚡ Toxic If:
if eaten
Frequently Asked Questions
Q: Does Symphyotrichum oolentangiense attract pollinators?
A: Yes, it is highly attractive to bees, butterflies, and other pollinators.
Q: Is this plant toxic to pets?
A: No, it is non-toxic to dogs and cats.
Q: How much water does this plant require?
A: It is drought-tolerant and prefers moderate watering, though it can withstand periods of dryness.
Quick Reference
| Family: | Asteraceae |
| Care: | easy |
| Light: | full sun |
| Water: | every 7–10 days during activ |
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