Fountain Grass
pennisetum setaceum
Also known as: ["Crimson Fountaingrass","Red Fountain Grass"]
Overview
A perennial ornamental grass known for its arching, feathery plumes and vibrant red foliage, often used in landscaping for its aesthetic appeal.
Benefits & Perks
["long-flowering","deer resistant","low maintenance","wildlife attractant (bees, butterflies, birds)","drought tolerant"]
Botanical Classification
| Phylum: | Magnoliophyta |
| Class: | Liliopsida |
| Order: | Poales |
| Family: | Poaceae |
| Genus: | Pennisetum |
| Botanical Name: | Pennisetum setaceum |
Plant Characteristics
Basic Information
- Category: Grasses
- Suitable Location: outdoor garden bed in full sun, or large container
- Suitable For:
- Is Weed: No
- Allergenicity: low
Environmental Needs
- Climate: {"temperatureRange":"10–35°C"}
- Hardiness: {"zones":"9–11"}
- Misting: rarely required, only if ambient humidity is very low
- Drainage: Fast-draining to prevent waterlogging.
- Soil Type: Well-draining, sandy or loamy soil with some organic matter.
Maintenance Level
- Maintenance Level: low
- Toughness Level: high
- 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 (6–8 hours of direct sunlight daily); tolerates partial shade but may become leggy.
Sunlight Tolerance Tips:
Acclimate plants gradually to intense sunlight; protect from harsh afternoon sun in hot climates; ensure adequate airflow to prevent fungal issues.
Care Requirements
Care Difficulty
easymoderate
Sunlight
full sun
Rotate plant for even growth; provide shade during extreme heat; avoid direct sun on new transplants.
Watering
every 7–10 days during active growth, less frequently in winter
Water thoroughly but infrequently; ensure soil dries between waterings; avoid overwatering.
Soil
well-drained, sandy or loamy soil
pH: Slightly acidic to neutral (pH 6.0–7.0).
Use a cactus or succulent mix; avoid heavy clay soils; ensure pots have drainage holes.
Temperature
Thrives in warm conditions (65–85°F or 18–29°C); prefers stable temperatures; sensitive to frost.
Protect from frost; avoid sudden temperature changes; monitor for heat stress signs.
Fertilizing
every 4–6 weeks during growing season, none in winter
Apply fertilizer after watering to prevent root burn; flush soil occasionally to prevent salt buildup; reduce feeding in dormant periods.
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 (optional).
- Plant in moist medium.
- Keep warm and humid.
Best Time: Spring or early summer when the plant is actively growing.
Environment
Warm, humid environment with indirect light; maintain consistent moisture.
Medium
Well-draining potting mix (e.g., cactus mix with perlite or sand).
Hormone
Rooting hormone is optional but recommended for faster rooting.
Timeline
Roots may develop in 2–4 weeks; new growth may appear in 6–8 weeks.
Tools Needed
Pruning shears, rooting hormone, small pots, well-draining soil mix.
Quick Tips
Use healthy, non-flowering stems; maintain humidity with a plastic cover; avoid direct sunlight during rooting.
Pruning & Repotting
Pruning Guide
Method
Cut back stems to just above a leaf node or bud; remove dead or crossing branches.
Pruning Plan
Prune to maintain shape, encourage bushiness, and remove dead or damaged growth.
Tools
Pruning shears, sharp knife, gloves.
Checklist
Sterilize tools; prune during dormancy; make clean cuts; dispose of clippings.
Repotting Guide
Best Season
Spring, before the active growing season begins.
Pot Size
Choose a pot one size larger (1–2 inches wider in diameter) than the current one.
Method
Remove plant gently; trim roots if necessary; place in a new pot with fresh soil; water lightly after repotting.
Suggestions
Repot every 2–3 years or when roots fill the pot; necessary to refresh soil and provide space.
Checklist
Select appropriate pot; prepare new soil mix; handle roots carefully; 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 early in the morning to minimize 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 to improve drainage; incorporate compost for fertility; ensure soil is loose and airy.
Temperature Stress Management
Signs of Temperature Issues
Chlorosis (yellowing leaves) in cold; wilting or browning in excessive heat; stunted growth in temperature stress.
Cold Stress
Growth slows or halts; leaves may turn yellow or brown; risk of frost damage or death in freezing temperatures.
Solution: Move to a warmer location; provide frost protection; avoid overwatering in cold conditions.
Hot Stress
Leaves may scorch or wilt; growth may slow; increased water demand to prevent dehydration.
Solution: Provide partial shade during peak heat; increase watering frequency; ensure good air circulation.
Fertilizing Guide
Fertilizing Checklist
Check fertilizer type; dilute correctly; apply during active growth; avoid winter feeding.
Fertilizing Method
Use a balanced, water-soluble fertilizer diluted to half strength; fertilize every 4–6 weeks during growing season (spring and summer); avoid fertilizing in winter.
Common Problems & Solutions
Toxicity Warning
Cats
Non-toxicPennisetum setaceum is not considered toxic to cats. The plant does not pose a risk of poisoning or adverse health effects to felines.
⚡ Toxic If:
Generally non-toxic
Dogs
Non-toxicPennisetum setaceum is not considered toxic to dogs. There are no known harmful effects associated with ingestion or contact with this plant.
⚡ Toxic If:
Generally non-toxic
Humans
Non-toxicPennisetum setaceum, commonly known as fountain grass, is not considered toxic to humans. It has no known adverse effects on human health when handled or ingested in typical amounts.
⚡ Toxic If:
Generally non-toxic
Frequently Asked Questions
Q: Is Pennisetum setaceum invasive?
A: In some regions, it can be invasive due to its vigorous self-seeding habits.
Q: How often should I water Fountain Grass?
A: Water moderately, allowing the soil to dry slightly between waterings; it is drought-tolerant once established.
Q: Does Fountain Grass attract wildlife?
A: Yes, it attracts birds and beneficial insects with its plumes and seeds.
Quick Reference
| Family: | Poaceae |
| Care: | easy |
| Light: | full sun |
| Water: | every 7–10 days during activ |
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