Mexican Feather Grass
nassella tenuissima
Also known as: ["Stipa tenuissima"]
Overview
A graceful, fine-textured ornamental grass with delicate, feathery flower stalks that sway in the breeze.
Benefits & Perks
["low maintenance","deer resistant","aesthetic foliage","wildlife attractant (bees, butterflies, birds)","drought tolerant"]
Botanical Classification
| Phylum: | Magnoliophyta |
| Class: | Liliopsida |
| Order: | Poales |
| Family: | Poaceae |
| Genus: | Nassella |
| Botanical Name: | Nassella tenuissima |
Plant Characteristics
Basic Information
- Category: Succulents & Cacti
- Suitable Location: indoor pot or outdoor garden bed in a sheltered spot
- Suitable For:
- Is Weed: No
- Allergenicity: low
Environmental Needs
- Climate: {"temperatureRange":"5–35°C"}
- Hardiness: {"zones":"7–10"}
- Misting: rarely required, only if ambient humidity is very low
- Drainage: Fast-draining to prevent waterlogging.
- Soil Type: Well-draining, sandy loam with some organic matter.
Maintenance Level
- Maintenance Level: very low
- Toughness Level: high
- Pruning Frequency: As needed, typically every 1–2 years or after flowering.
- Pruning Intensity: Light to moderate, removing up to one-third of the plant if necessary.
Care Details
Ideal Sunlight Coverage:
Bright indirect light for 6–8 hours daily. Can tolerate full sun with adequate water, but prefers partial shade in hot climates.
Sunlight Tolerance Tips:
Acclimate gradually to full sun to avoid scorching. In hot climates, provide afternoon shade. Indoors, place near an east or west-facing window.
Care Requirements
Care Difficulty
easymoderate
Sunlight
full sun to partial shade
Rotate plant for even growth; avoid direct midday sun; adjust light exposure seasonally.
Watering
every 7–10 days during active growth, reduce in winter
Water thoroughly but infrequently; allow soil to dry between waterings; avoid overwatering to prevent root rot.
Soil
well-draining, sandy or loamy soil
pH: Slightly acidic to neutral (pH 6.0–7.0).
Ensure soil dries between waterings; avoid heavy clay soils; amend with organic matter for nutrients.
Temperature
Prefers mild temperatures, ideally 60–75°F (15–24°C). Tolerates light frosts but is sensitive to prolonged cold or extreme heat.
Avoid sudden temperature changes; protect from frost; maintain moderate humidity.
Fertilizing
every 4–6 weeks during spring and summer
Fertilize only during active growth; dilute fertilizer to prevent burn; flush soil occasionally to prevent salt buildup.
Propagation
Methods
Stem cuttings or division of clumps.
Step-by-Step Propagation Guide
- Take 4–6 inch cuttings.
- Remove lower leaves.
- Dip in rooting hormone (optional).
- Plant in medium.
- Keep moist and warm.
Best Time: Spring or early summer when the plant is actively growing.
Environment
Warm, humid environment with indirect light and consistent moisture.
Medium
Well-draining mix of perlite and peat moss or cactus potting mix.
Hormone
Optional, but rooting hormone can improve success rates.
Timeline
Roots may develop in 3–6 weeks; establish in new pots within 2–3 months.
Tools Needed
Pruning shears, rooting hormone, small pots, well-draining medium.
Quick Tips
Use sharp, sterile tools; maintain humidity with a plastic cover; avoid direct sun during rooting.
Pruning & Repotting
Pruning Guide
Method
Trim back straggly stems and remove dead foliage. Shape the plant evenly.
Pruning Plan
Prune to maintain shape, remove dead or damaged foliage, and encourage bushier growth.
Tools
Pruning shears, sharp scissors, gloves.
Checklist
Use clean tools; prune dead or damaged growth; shape evenly; dispose of clippings properly.
Repotting Guide
Best Season
Spring, before the active growing season begins.
Pot Size
Increase pot size by 1–2 inches in diameter.
Method
Remove plant gently, trim roots if needed, place in a slightly larger pot with fresh, well-draining soil, and water lightly.
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 lightly after repotting.
Advanced Care Tips
Watering Mastery
Watering Checklist
Check soil moisture before watering; water deeply; ensure drainage; adjust frequency seasonally.
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. Ensure excess water drains away to prevent waterlogging.
Watering Schedule Tips
Water deeply once every 1–2 weeks during active growth, reducing frequency to once a month in winter. Adjust based on rainfall and soil dryness.
Soil Improvement
Add perlite or coarse sand to improve drainage; incorporate compost for fertility.
Temperature Stress Management
Signs of Temperature Issues
Chlorosis or browning of tips in excessive heat; stunted growth or leaf drop in cold stress.
Cold Stress
Low temperatures slow growth and can cause root damage or dieback, especially below 20°F (-6°C).
Solution: Protect with frost cloth or move to a sheltered location. Mulch around the base to insulate roots.
Hot Stress
Excessive heat can lead to wilting, browning, or drying of foliage, especially in full sun without water.
Solution: Provide shade during peak heat, increase watering, and ensure good air circulation.
Fertilizing Guide
Fertilizing Checklist
Use balanced fertilizer; dilute properly; fertilize during growing season; avoid over-fertilization.
Fertilizing Method
Use a balanced, water-soluble fertilizer diluted to half strength every 4–6 weeks during spring and summer. Avoid fertilizing in fall and winter.
Common Problems & Solutions
Toxicity Warning
Cats
Non-toxicNassella tenuissima is not known to be toxic to cats. The plant does not contain known compounds that would cause harm to felines.
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Dogs
Non-toxicNassella tenuissima is not known to be toxic to dogs. The plant does not contain known compounds that would cause harm to canines.
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Humans
Non-toxicNassella tenuissima is not known to produce toxic compounds that would cause adverse effects in humans. The plant is generally considered safe for human contact and consumption.
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Frequently Asked Questions
Q: How often should I water Mexican Feather Grass?
A: Water sparingly, allowing the soil to dry out between waterings. It is drought-tolerant once established.
Q: Does Nassella tenuissima attract wildlife?
A: Yes, it attracts bees, butterflies, and birds, making it a great addition to wildlife gardens.
Q: Should I cut back Mexican Feather Grass in winter?
A: Yes, prune back old foliage in late winter or early spring to encourage fresh growth.
Quick Reference
| Family: | Poaceae |
| Care: | easy |
| Light: | full sun to partial shade |
| Water: | every 7–10 days during activ |
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