Cylindric Blazing Star
liatris squarrosa
Also known as: ["Cylindric Gayfeather","Cylindric Blazing Star"]
Overview
A perennial wildflower native to North America, known for its tall spikes of fluffy, purple flowers that bloom in late summer.
Benefits & Perks
["long-flowering","wildlife attractant (bees, butterflies, birds)","drought tolerant","aesthetic foliage"]
Botanical Classification
| Phylum: | Magnoliophyta |
| Class: | Magnoliopsida |
| Order: | Asterales |
| Family: | Asteraceae |
| Genus: | Liatris |
| Botanical Name: | Liatris squarrosa |
Plant Characteristics
Basic Information
- Category: Flowers
- Suitable Location: garden bed in full sun, well-drained area
- Suitable For:
- Is Weed: No
- Allergenicity: low
Environmental Needs
- Climate: {"temperatureRange":"–12–35°C"}
- Hardiness: {"zones":"4–9"}
- Misting: rarely required, only if ambient humidity is very low
- Drainage: Fast-draining.
- Soil Type: Well-draining, sandy, or loamy soil with some organic matter.
Maintenance Level
- Maintenance Level: moderate
- Toughness Level: moderate
- Pruning Frequency: As needed after flowering or in late fall.
- Pruning Intensity: Light pruning only.
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 if moving from shade to sun. Protect from intense midday sun in hot climates. Ensure good air circulation to prevent fungal issues in humid conditions.
Care Requirements
Care Difficulty
moderatemoderate
Sunlight
full sun
Full sun is best; avoid deep shade; rotate pots for even growth.
Watering
every 7–10 days during active growth, reduce in winter
Water thoroughly but infrequently; ensure soil dries slightly between waterings; avoid waterlogging.
Soil
well-drained, sandy loam with moderate fertility
pH: Slightly acidic to neutral (pH 6.0–7.0).
Ensure excellent drainage; avoid heavy clay; amend with organic matter if needed.
Temperature
Prefers moderate temperatures (60–75°F or 15–24°C). Tolerates heat but may go dormant in extreme conditions. Hardy to USDA zones 3–8.
Mulch to regulate soil temperature; water deeply in heat; protect from frost.
Fertilizing
every 4–6 weeks during spring and summer
Fertilize sparingly; apply in spring only; avoid high-nitrogen formulas.
Propagation
Methods
Division of rhizomes or seed propagation.
Step-by-Step Propagation Guide
- Divide rhizomes into sections with at least one growth bud.
- Plant seeds 1/4 inch deep.
- Keep moist until germination.
Best Time: Divide rhizomes in early spring or fall. Sow seeds in fall for natural stratification.
Environment
Warm, well-drained conditions with indirect light for seeds; full sun for established plants.
Medium
Well-draining soil mix, such as cactus mix or sandy loam.
Hormone
Not typically required for rhizome division; optional for seeds to encourage germination.
Timeline
Rhizomes establish quickly in 1–2 weeks. Seeds may take 1–2 years to flower after germination.
Tools Needed
Garden knife, trowel, labels, watering can.
Quick Tips
Divide every 3–4 years to maintain vigor; cold-stratify seeds for better germination.
Pruning & Repotting
Pruning Guide
Method
Snip spent flower stalks at the base; cut back foliage in late fall if desired.
Pruning Plan
Minimal pruning needed. Remove spent flower stalks to encourage reblooming and tidy appearance.
Tools
Hand pruners, scissors.
Checklist
Remove dead flowers; cut back foliage if needed; clean tools after use.
Repotting Guide
Best Season
Early spring before active growth begins.
Pot Size
One size larger pot (e.g., +2 inches in diameter).
Method
Gently lift the plant, remove old soil, and replant in fresh, well-draining soil with a slightly larger pot.
Suggestions
Not typically repotted, as Liatris is planted in the ground. If in a container, repot every 2–3 years to refresh soil.
Checklist
Choose a larger pot; use fresh soil; water after repotting; place in appropriate light.
Advanced Care Tips
Watering Mastery
Watering Checklist
Check soil moisture before watering; 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. Water early in the morning to minimize evaporation and fungal issues. Allow excess water to drain away completely.
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 sand or perlite to improve drainage; incorporate compost for fertility.
Temperature Stress Management
Signs of Temperature Issues
Wilting, yellowing leaves, stunted growth, or premature dormancy in extreme heat or cold.
Cold Stress
Low temperatures can cause root damage or slow growth, but the plant is generally cold-hardy.
Solution: Mulch heavily in winter to insulate roots. Avoid planting in areas prone to frost pockets.
Hot Stress
Excessive heat can lead to wilting, reduced flowering, or dormancy.
Solution: Provide afternoon shade in hot climates. Water deeply to cool roots and maintain soil moisture.
Fertilizing Guide
Fertilizing Checklist
Use balanced fertilizer; apply in spring; water after fertilizing.
Fertilizing Method
Use a balanced, slow-release fertilizer in early spring. Avoid over-fertilizing, as Liatris prefers lean soil.
Common Problems & Solutions
Toxicity Warning
Cats
Non-toxicLiatris squarrosa is not known to be toxic to cats. The plant poses no significant health risks if ingested or handled by felines.
⚡ Toxic If:
None
Dogs
Non-toxicLiatris squarrosa is not known to be toxic to dogs. The plant poses no significant health risks if ingested or handled by canines.
⚡ Toxic If:
None
Humans
Non-toxicLiatris squarrosa is not known to exhibit toxic properties to humans. The plant is generally considered safe for handling and consumption.
⚡ Toxic If:
None
Frequently Asked Questions
Q: How tall does Liatris squarrosa grow?
A: It typically reaches 2 to 3 feet in height.
Q: Does Liatris squarrosa attract pollinators?
A: Yes, it is highly attractive to bees, butterflies, and other pollinators.
Q: Is Liatris squarrosa deer resistant?
A: Yes, it is generally deer resistant due to its texture and taste.
Quick Reference
| Family: | Asteraceae |
| Care: | moderate |
| Light: | full sun |
| Water: | every 7–10 days during activ |
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