Cabbage Head Agave
agave parrasana
Also known as: ["Cabbage Head Agave","Cerro Prieto Agave"]
Overview
A slow-growing, rosette-forming succulent with powdery blue-gray leaves and sharp marginal teeth.
Benefits & Perks
["drought tolerant","shade tolerant","rare/collector’s item"]
Botanical Classification
| Phylum: | Magnoliophyta |
| Class: | Liliopsida |
| Order: | Asparagales |
| Family: | Asparagaceae |
| Genus: | Agave |
| Botanical Name: | Agave parrasana |
Plant Characteristics
Basic Information
- Category: Succulents & Cacti
- Suitable Location: rock garden, xeriscaped landscape, or container in full sun
- Suitable For:
- Is Weed: No
- Allergenicity: low
Environmental Needs
- Climate: {"temperatureRange":"5–40°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 cactus or succulent mix with added perlite or coarse sand.
Maintenance Level
- Maintenance Level: very low
- Toughness Level: high
- Pruning Frequency: As needed, typically annually or when dead leaves accumulate.
- Pruning Intensity: Light pruning; remove only dead or discolored leaves.
Care Details
Ideal Sunlight Coverage:
Bright, direct sunlight for 6–8 hours daily. Can tolerate full sun but benefits from some afternoon shade in hot climates.
Sunlight Tolerance Tips:
Acclimate gradually to intense sunlight; protect from harsh midday sun to prevent scorching; place in a south-facing window indoors.
Care Requirements
Care Difficulty
moderatemoderate
Sunlight
full sun to partial shade
Rotate plant weekly for even growth; provide shade during extreme heat; avoid direct sun on new growth.
Watering
every 2–3 weeks during growing season, less frequently in winter
Water deeply but infrequently; ensure excellent drainage; avoid overwatering to prevent root rot.
Soil
well-draining, sandy or rocky soil mix
pH: Slightly acidic to neutral (pH 6.0–7.0).
Ensure pots have drainage holes; avoid heavy garden soil; top-dress with gravel if needed.
Temperature
Prefers warm temperatures (65–90°F or 18–32°C). Tolerates mild frosts but thrives in arid, warm conditions.
Protect from frost; avoid sudden temperature swings; ensure good air flow in hot weather.
Fertilizing
every 3–4 months during growing season with balanced, low-nitrogen fertilizer
Fertilize only when actively growing; avoid over-fertilization; flush soil occasionally to prevent salt buildup.
Propagation
Methods
By offsets (pups) or leaf cuttings. Offsets are the most reliable method.
Step-by-Step Propagation Guide
- Separate offset from parent.
- Let callus form for a few days.
- Plant in dry soil.
- Water sparingly until established.
Best Time: Spring or early summer when the plant is actively growing.
Environment
Warm (70–80°F or 21–27°C), bright indirect light, and moderate humidity (40–60%).
Medium
Well-draining mix of cactus soil and perlite or sand.
Hormone
Not necessary for offsets; optional for leaf cuttings to encourage rooting.
Timeline
Offsets may root in 2–4 weeks; leaf cuttings take 6–8 weeks to root and several months to establish.
Tools Needed
Sharp knife, gloves, rooting hormone (optional), small pots, well-draining soil.
Quick Tips
Allow cuttings to callus before planting; use sterile tools; maintain consistent warmth.
Pruning & Repotting
Pruning Guide
Method
Cut leaves at the base with a clean, sharp tool; avoid cutting into healthy tissue.
Pruning Plan
Minimal pruning needed. Remove dead or damaged leaves to maintain appearance and health.
Tools
Pruning shears, sharp knife, gloves.
Checklist
Wear gloves; sterilize tools; cut cleanly; dispose of debris.
Repotting Guide
Best Season
Spring, before the growing season begins.
Pot Size
One size larger pot (e.g., +2–3 inches in diameter).
Method
Remove plant gently; trim any dead roots; repot in a slightly larger container with fresh, well-draining soil.
Suggestions
Repot only when the plant becomes root-bound or outgrows its container, typically every 3–5 years.
Checklist
Check root boundness; prepare new pot; trim roots if needed; use fresh soil.
Advanced Care Tips
Watering Mastery
Watering Checklist
Check soil dryness; water deeply; ensure drainage; adjust for season.
How to Apply Water Properly
Water thoroughly at the root zone until water drains from the bottom, ensuring even moisture without waterlogging. Water early in the morning to minimize evaporation and allow foliage to dry.
Watering Schedule Tips
Water sparingly, allowing soil to dry completely between waterings. Reduce frequency in winter to once every 4–6 weeks, depending on conditions.
Soil Improvement
Add coarse sand, perlite, or pumice to commercial potting mix to enhance drainage and aeration.
Temperature Stress Management
Signs of Temperature Issues
Chlorosis or browning of leaf tips in excessive heat; blackening or mushy base in cold stress.
Cold Stress
Low temperatures slow growth and can cause cellular damage, leading to rot or death if prolonged below 20°F (-6°C).
Solution: Move to a sheltered location; provide frost protection; reduce watering in cool periods.
Hot Stress
Excessive heat can cause leaf scorch, dehydration, and stunted growth, especially with poor water management.
Solution: Provide partial shade during peak heat; increase air circulation; water deeply but infrequently.
Fertilizing Guide
Fertilizing Checklist
Check growth phase; dilute fertilizer; apply to soil; avoid foliage contact.
Fertilizing Method
Use a balanced, low-nitrogen fertilizer diluted to half strength every 4–6 weeks during growing season (spring–summer). Avoid fertilizing in winter.
Common Problems & Solutions
Toxicity Warning
Cats
ToxicCats are susceptible to the toxic effects of Agave parrasana, which can cause severe gastrointestinal distress and potential kidney damage due to saponins and other toxins.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Dogs
ToxicIngestion of Agave parrasana by dogs can lead to gastrointestinal upset and potential kidney damage due to the presence of saponins and other toxic compounds.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Humans
ToxicAgave parrasana contains saponins and other compounds that can cause gastrointestinal irritation and other adverse effects upon ingestion. The sap may also cause skin irritation upon contact.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Frequently Asked Questions
Q: Is Agave parrasana toxic to pets?
A: It is mildly toxic to dogs and cats if ingested.
Q: How often should I water Agave parrasana?
A: Water sparingly, allowing the soil to dry completely between waterings.
Q: Does Agave parrasana flower?
A: It is monocarpic, meaning it flowers once in its lifetime before dying, producing a tall stalk with yellow flowers.
Quick Reference
| Family: | Asparagaceae |
| Care: | moderate |
| Light: | full sun to partial shade |
| Water: | every 2–3 weeks during growi |
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