Narrow-leaf Zinnia
zinnia angustifolia
Also known as: ["Zinnia linearis","Zinnia angustifolia var. linearis"]
Overview
A compact, bushy annual with narrow, linear leaves and bright yellow, daisy-like flowers.
Benefits & Perks
["long-flowering","disease resistant","deer resistant","wildlife attractant (bees, butterflies, birds)","drought tolerant","low maintenance"]
Botanical Classification
| Phylum: | Magnoliophyta |
| Class: | Magnoliopsida |
| Order: | Asterales |
| Family: | Asteraceae |
| Genus: | Zinnia |
| Botanical Name: | Zinnia angustifolia |
Plant Characteristics
Basic Information
- Category: Flowers
- Suitable Location: outdoor garden bed in full sun exposure
- Suitable For:
- Is Weed: No
- Allergenicity: low
Environmental Needs
- Climate: {"temperatureRange":"10–35°C"}
- Hardiness: {"zones":"8–11"}
- 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; cactus or succulent mix works well.
Maintenance Level
- Maintenance Level: low
- Toughness Level: high
- Pruning Frequency: Deadhead regularly; light pruning every 4–6 weeks during growing season.
- Pruning Intensity: Light to moderate; avoid heavy pruning unless necessary to control size.
Care Details
Ideal Sunlight Coverage:
Full sun (6–8 hours/day); tolerates intense light but benefits from some afternoon shade in extreme heat.
Sunlight Tolerance Tips:
Acclimate gradually to intense sun; protect from harsh midday sun in hot climates; ensure proper ventilation if grown indoors.
Care Requirements
Care Difficulty
easyeasy
Sunlight
full sun
Rotate plants for even light exposure; use shade cloth in extreme heat; avoid placing near reflective surfaces that intensify light.
Watering
every 7–10 days, allowing soil to dry slightly between waterings
Water at the base to avoid foliage; ensure soil dries between waterings; avoid overwatering to prevent root rot.
Soil
well-draining, loamy soil with moderate organic content
pH: Slightly acidic to neutral (6.0–7.0).
Use raised beds in heavy soils; avoid compacted soil; ensure pots have drainage holes.
Temperature
Warm conditions (65–85°F/18–29°C); thrives in heat; sensitive to frost.
Protect from frost; ensure good air circulation in heat; avoid sudden temperature fluctuations.
Fertilizing
every 4–6 weeks during active growth with balanced liquid fertilizer
Apply fertilizer after watering to prevent root burn; stop fertilizing when blooming slows; use organic options for gentle feeding.
Propagation
Methods
Stem cuttings or seeds; stem cuttings root easily in warm conditions.
Step-by-Step Propagation Guide
- Take 4–6 inch cuttings.
- Remove lower leaves.
- Dip in hormone.
- Plant in medium.
- Keep moist and warm.
Best Time: Spring or early summer when temperatures are warm and growth is active.
Environment
Warm (70–75°F/21–24°C), high humidity, and bright indirect light.
Medium
Well-draining mix like perlite and peat moss or cactus mix.
Hormone
Optional but recommended for faster rooting.
Timeline
Roots in 2–3 weeks; establish in 4–6 weeks.
Tools Needed
Pruners, rooting hormone, small pots, well-draining medium.
Quick Tips
Use healthy, non-flowering stems; maintain humidity with a plastic bag; avoid overwatering.
Pruning & Repotting
Pruning Guide
Method
Snip stems just above a leaf node or lateral branch; remove yellow or damaged leaves.
Pruning Plan
Remove spent flowers to encourage continuous blooming; trim leggy growth to maintain shape.
Tools
Sharp pruners or scissors, clean blades.
Checklist
Check for dead or diseased stems; prune to shape; sanitize tools between cuts.
Repotting Guide
Best Season
Spring, before active growth begins.
Pot Size
One size larger pot; ensure good drainage holes.
Method
Gently remove plant; trim roots if needed; place in new pot with fresh soil; water lightly.
Suggestions
Repot if roots are crowded or growth slows; typically every 1–2 years.
Checklist
Check root health; use fresh soil; ensure proper drainage; avoid overpotting.
Advanced Care Tips
Watering Mastery
Watering Checklist
Check soil moisture; water deeply; ensure drainage; avoid wetting foliage.
How to Apply Water Properly
Water thoroughly until it drains from the bottom; focus on the root zone; water early in the morning to minimize evaporation and fungal growth.
Watering Schedule Tips
Water deeply once the top inch of soil is dry; reduce frequency in winter or during dormancy; increase during hot, dry periods.
Soil Improvement
Add perlite or sand for drainage; incorporate compost for fertility; ensure soil is loose and airy.
Temperature Stress Management
Signs of Temperature Issues
Wilting, leaf scorch, stunted growth, or bud drop in extreme heat; yellowing or browning leaves in cold stress.
Cold Stress
Growth slows or halts; leaves may turn yellow or brown; risk of frost damage or death in temperatures below 50°F/10°C.
Solution: Move to a warmer location; cover with a frost cloth if temperatures drop; avoid watering excessively in cool conditions.
Hot Stress
Wilting, leaf scorch, or flower drop; reduced vigor in prolonged extreme heat.
Solution: Provide afternoon shade; increase watering frequency; use mulch to retain soil moisture.
Fertilizing Guide
Fertilizing Checklist
Check fertilizer type; dilute properly; apply to moist soil; avoid contact with foliage.
Fertilizing Method
Use balanced liquid fertilizer diluted to half strength every 4–6 weeks during growing season; avoid fertilizing in winter.
Common Problems & Solutions
Toxicity Warning
Cats
Non-toxicZinnia angustifolia is not known to be toxic to cats. It is considered safe for feline ingestion in small amounts.
⚡ Toxic If:
if eaten
Dogs
Non-toxicZinnia angustifolia is not known to be toxic to dogs. It does not pose a significant risk if ingested in small amounts.
⚡ Toxic If:
if eaten
Humans
Non-toxicZinnia angustifolia is not known to have toxic effects on humans. It is generally considered safe for consumption in small quantities.
⚡ Toxic If:
if eaten
Frequently Asked Questions
Q: How often should I water Zinnia angustifolia?
A: Water when the top inch of soil is dry, typically every 7-10 days, depending on weather conditions.
Q: Does Zinnia angustifolia attract pollinators?
A: Yes, it is highly attractive to bees, butterflies, and other pollinators due to its bright flowers.
Q: Can Zinnia angustifolia tolerate full sun?
A: Yes, it thrives in full sun and requires at least 6 hours of direct sunlight daily.
Quick Reference
| Family: | Asteraceae |
| Care: | easy |
| Light: | full sun |
| Water: | every 7–10 days, allowing so |
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