Red Amaranth
amaranthus cruentus
Also known as: ["Prince's Feather","Red Cockscomb"]
Overview
A tall annual plant with striking red or purple foliage and edible seeds, often cultivated for grain and ornamental purposes.
Benefits & Perks
["edible fruits","medicinal use","aesthetic foliage","wildlife attractant (bees, butterflies, birds)","drought tolerant"]
Botanical Classification
| Phylum: | Magnoliophyta |
| Class: | Magnoliopsida |
| Order: | Caryophyllales |
| Family: | Amaranthaceae |
| Genus: | Amaranthus |
| Botanical Name: | Amaranthus cruentus |
Plant Characteristics
Basic Information
- Category: Herbs & Weeds
- Suitable Location: outdoor garden bed in full sun exposure
- Suitable For:
- Is Weed: No
- Allergenicity: low
Environmental Needs
- Climate: {"temperatureRange":"15–35°C"}
- Hardiness: {"zones":"2–11"}
- Misting: rarely required, only if ambient humidity is very low
- Drainage: Fast-draining to prevent waterlogging.
- Soil Type: Well-draining, loamy soil with organic matter.
Maintenance Level
- Maintenance Level: moderate
- Toughness Level: high
- Pruning Frequency: As needed; after flowering or when plants become leggy.
- Pruning Intensity: Light to moderate; avoid heavy pruning unless necessary.
Care Details
Ideal Sunlight Coverage:
Full sun (6–8 hours/day); tolerates partial shade but may produce fewer flowers.
Sunlight Tolerance Tips:
Acclimate plants gradually to intense sunlight; protect from harsh afternoon sun in hot climates; ensure adequate airflow to prevent heat stress.
Care Requirements
Care Difficulty
easyeasy
Sunlight
full sun
Rotate plants for even light exposure; use shade cloth in extreme heat; avoid direct sun on young seedlings.
Watering
every 7–10 days, allowing soil to dry slightly between waterings
Water thoroughly but infrequently; ensure good drainage; avoid wetting foliage to prevent fungal diseases.
Soil
well-draining, fertile loam with moderate organic matter
pH: Slightly acidic to neutral (6.0–7.0).
Ensure soil is not compacted; avoid heavy clay; maintain consistent moisture.
Temperature
Warm temperatures (65–85°F/18–29°C); thrives in heat; sensitive to frost.
Avoid sudden temperature changes; protect from frost; ensure good airflow in hot weather.
Fertilizing
every 4–6 weeks during growing season with balanced liquid fertilizer
Dilute fertilizer to half strength; avoid overfertilizing; fertilize after watering to prevent root burn.
Propagation
Methods
Seed propagation; stem cuttings can also be used but are less common.
Step-by-Step Propagation Guide
- Sow seeds 1/4 inch deep.
- Keep moist.
- Thin seedlings.
- Or take cuttings, apply hormone, and place in medium.
Best Time: Spring or early summer when temperatures are warm and stable.
Environment
Warm (70–75°F/21–24°C), high humidity, and bright indirect light.
Medium
Well-draining seed starting mix or cactus mix with perlite.
Hormone
Not typically required for seeds; optional for stem cuttings.
Timeline
Seeds germinate in 7–14 days; cuttings root in 2–4 weeks.
Tools Needed
Seed trays, pots, labels, watering can, pruners (for cuttings).
Quick Tips
Use bottom heat for faster germination; keep soil consistently moist; harden off seedlings before transplanting.
Pruning & Repotting
Pruning Guide
Method
Pinch back tips to encourage bushier growth; trim spent flowers to promote reblooming.
Pruning Plan
Minimal pruning needed; remove dead or damaged foliage to improve air circulation.
Tools
Pruning shears, gloves, clean blades.
Checklist
Disinfect tools; prune dead/damaged parts; improve air circulation; shape as desired.
Repotting Guide
Best Season
Spring, before active growth begins.
Pot Size
One size larger pot; ensure drainage holes.
Method
Gently remove plant; trim roots if necessary; use fresh soil mix; ensure good drainage.
Suggestions
Repot only if roots are crowded or soil is depleted; typically not needed for annuals.
Checklist
Check root health; use fresh soil; water after repotting; place in appropriate light.
Advanced Care Tips
Watering Mastery
Watering Checklist
Check soil moisture; water deeply; ensure drainage; avoid wetting leaves.
How to Apply Water Properly
Water at the base of the plant, focusing on the root zone; apply until water drains from the bottom; avoid overhead watering.
Watering Schedule Tips
Water deeply once the top inch of soil is dry; reduce frequency in winter to prevent root rot.
Soil Improvement
Add compost or well-rotted manure; mix in perlite or sand for drainage.
Temperature Stress Management
Signs of Temperature Issues
Wilting, leaf scorch, stunted growth, or bud drop in extreme heat or cold.
Cold Stress
Growth slows or halts; leaves may turn yellow or brown; risk of frost damage.
Solution: Provide frost protection (e.g., row covers); move potted plants indoors; avoid overwatering in cool conditions.
Hot Stress
Leaf wilting, scorching, or dropping; reduced flowering; potential for heat stress.
Solution: Provide partial shade during peak heat; increase watering; use mulch to retain soil moisture.
Fertilizing Guide
Fertilizing Checklist
Check fertilizer type; dilute properly; apply to soil; avoid foliage contact.
Fertilizing Method
Use balanced liquid fertilizer every 4–6 weeks during growing season; reduce or stop in winter.
Common Problems & Solutions
Toxicity Warning
Cats
Non-toxicAmaranthus cruentus is not considered toxic to cats. However, ingestion in large amounts may lead to mild gastrointestinal distress. Cats should not be encouraged to consume large quantities of this plant.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
Generally non-toxic unless consumed in excessive quantities
Dogs
Non-toxicAmaranthus cruentus is not considered toxic to dogs. However, large quantities may cause mild gastrointestinal upset due to the plant's fiber content. It is not a common part of a dog's diet and should be offered sparingly.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
Generally non-toxic unless consumed in excessive quantities
Humans
Non-toxicAmaranthus cruentus is primarily considered non-toxic to humans. However, excessive consumption may lead to mild gastrointestinal discomfort due to high fiber content. The plant is often cultivated as a grain and leafy vegetable in various cultures.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
Generally non-toxic unless consumed in excessive quantities
Frequently Asked Questions
Q: Is Amaranthus cruentus edible?
A: Yes, its leaves and seeds are edible and commonly used in culinary dishes.
Q: Does this plant attract wildlife?
A: Yes, it attracts bees, butterflies, and birds due to its flowers and seeds.
Q: How drought-tolerant is Amaranthus cruentus?
A: It is highly drought-tolerant and can thrive in dry conditions once established.
Quick Reference
| Family: | Amaranthaceae |
| Care: | easy |
| Light: | full sun |
| Water: | every 7–10 days, allowing so |
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