Pincushion Milkweed
asclepias linaria
Also known as: ["Pink Pincushion Milkweed","Pink Milkweed"]
Overview
A striking perennial with fuzzy, needle-like leaves and clusters of pinkish-purple flowers that resemble pincushions.
Benefits & Perks
["long-flowering","wildlife attractant (bees, butterflies, birds)","drought tolerant","aesthetic foliage"]
Botanical Classification
| Phylum: | Magnoliophyta |
| Class: | Magnoliopsida |
| Order: | Gentianales |
| Family: | Apocynaceae |
| Genus: | Asclepias |
| Botanical Name: | Asclepias linaria |
Plant Characteristics
Basic Information
- Category: Flowers
- Suitable Location: outdoor garden bed in a warm, dry climate
- Suitable For:
- Is Weed: No
- Allergenicity: low
Environmental Needs
- Climate: {"temperatureRange":"5–35°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 cactus or succulent mix with added perlite or sand.
Maintenance Level
- Maintenance Level: moderate
- Toughness Level: moderate
- Pruning Frequency: As needed, typically every 6–12 months or after flowering.
- Pruning Intensity: Moderate; remove up to one-third of growth if overgrown.
Care Details
Ideal Sunlight Coverage:
Bright, direct sunlight for 6–8 hours daily; adjust for intense summer sun.
Sunlight Tolerance Tips:
Acclimate gradually to intense light; protect from harsh midday sun; place near south-facing window indoors.
Care Requirements
Care Difficulty
moderatemoderate
Sunlight
full sun
Rotate plant for even light; use sheer curtains in summer; avoid shaded spots.
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-draining, sandy or rocky soil
pH: Slightly acidic to neutral (6.0–7.0).
Ensure pots have drainage holes; avoid heavy garden soil; top-dress with compost annually.
Temperature
Prefers 65–85°F (18–29°C); tolerates mild frosts but thrives in warm conditions.
Avoid sudden temperature changes; protect from drafts; maintain consistent warmth.
Fertilizing
every 4–6 weeks during spring and summer, none in winter
Fertilize only when actively growing; flush soil occasionally to prevent salt buildup; stop in fall.
Propagation
Methods
Stem cuttings or seed; stem cuttings are more reliable for home growers.
Step-by-Step Propagation Guide
- Take 4–6 inch cuttings.
- Remove lower leaves.
- Dip in hormone.
- Plant in medium.
- Keep moist.
Best Time: Spring or early summer when plant is actively growing.
Environment
High humidity (70–80%), warm (70–75°F), indirect light.
Medium
Well-draining mix of perlite and peat moss or cactus soil.
Hormone
Rooting hormone recommended for faster rooting.
Timeline
Roots in 3–6 weeks; establish in 2–3 months.
Tools Needed
Pruners, rooting hormone, small pots, misting spray bottle.
Quick Tips
Use healthy, non-flowering stems; maintain humidity with a plastic bag; avoid direct sun.
Pruning & Repotting
Pruning Guide
Method
Pinch back tips or cut stems just above a leaf node.
Pruning Plan
Remove dead or leggy growth to maintain shape and encourage bushier growth.
Tools
Clean, sharp pruners or scissors.
Checklist
Sanitize tools; prune dead/damaged growth; shape plant; clean up debris.
Repotting Guide
Best Season
Spring, before new growth begins.
Pot Size
One size larger pot; increase diameter by 2–3 inches.
Method
Use fresh well-draining soil; trim roots if necessary; ensure pot has drainage holes.
Suggestions
Repot every 2–3 years or when roots fill the pot; prefers slightly root-bound conditions.
Checklist
Prepare new pot; gently remove plant; trim roots; add fresh soil; water lightly.
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, ensuring moisture reaches the root zone; allow excess to drain; water in the morning to reduce 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 coarse sand to improve drainage; incorporate organic matter for fertility.
Temperature Stress Management
Signs of Temperature Issues
Wilting, leaf drop, or stunted growth in extreme heat or cold.
Cold Stress
Slows growth, may cause leaf discoloration or dieback in prolonged cold.
Solution: Move to a warmer location; provide frost protection in winter; avoid drafty areas.
Hot Stress
Leaf scorch, wilting, or reduced flowering in excessive heat.
Solution: Provide shade during peak sun; increase humidity; water more frequently but carefully.
Fertilizing Guide
Fertilizing Checklist
Check growth phase; dilute fertilizer; apply to moist soil; rinse pot periodically.
Fertilizing Method
Use balanced liquid fertilizer diluted to half strength every 4–6 weeks during growing season; avoid winter feeding.
Common Problems & Solutions
Toxicity Warning
Cats
ToxicCats are highly sensitive to the cardenolides in Asclepias linaria, which can cause severe cardiac and gastrointestinal distress, potentially leading to fatal outcomes.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Dogs
ToxicThe cardenolides in Asclepias linaria are highly toxic to dogs, affecting the heart and leading to potentially fatal cardiac arrhythmias and other systemic effects.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Humans
ToxicAsclepias linaria, commonly known as Pink Milkweed, contains cardenolides, which are toxic cardiac glycosides. Ingestion can lead to severe physiological effects, including cardiac dysfunction and electrolyte imbalances.
⚠️ Symptoms:
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Frequently Asked Questions
Q: Is Asclepias linaria toxic to pets?
A: Yes, it is toxic to dogs and cats if ingested.
Q: Does this plant attract butterflies?
A: Yes, it is a host plant for monarch butterflies and attracts other pollinators.
Q: How often should I water Asclepias linaria?
A: Water sparingly, as it is drought-tolerant and prefers well-drained soil.
Quick Reference
| Family: | Apocynaceae |
| Care: | moderate |
| Light: | full sun |
| Water: | every 7–10 days during activ |
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