Sticky Flax

linum viscosum

Also known as: ["Sticky Flax"]

Family: Linaceae Genus: Linum Category: Flowers

Overview

A perennial herbaceous plant native to Europe, characterized by its sticky stems and blue flowers.

Benefits & Perks

["wildlife attractant (bees, butterflies, birds)","aesthetic foliage"]

Botanical Classification

Phylum: Magnoliophyta
Class: Magnoliopsida
Order: Malpighiales
Family: Linaceae
Genus: Linum
Botanical Name: Linum viscosum

Plant Characteristics

Basic Information
  • Category: Flowers
  • Suitable Location: outdoor garden bed in a sunny area
  • Suitable For:
    Collectors & Enthusiasts Outdoor Landscapers Wildlife Supporters
  • Is Weed: No
  • Allergenicity: low
Environmental Needs
  • Climate: {"temperatureRange":"5–30°C"}
  • Hardiness: {"zones":"7–9"}
  • Misting: rarely required, only if ambient humidity is very low
  • Drainage: Fast-draining to prevent waterlogging.
  • Soil Type: Well-draining, loamy soil with added organic matter; avoid heavy clay.
Maintenance Level
  • Maintenance Level: moderate
  • Toughness Level: moderate
  • Pruning Frequency: Light pruning after flowering; major pruning in late winter or early spring.
  • Pruning Intensity: Light to moderate; avoid heavy pruning unless necessary to control size.
Care Details

Ideal Sunlight Coverage:
Full sun (6–8 hours of direct sunlight daily); tolerates partial shade in hot climates.

Sunlight Tolerance Tips:
Acclimate plants gradually to intense sunlight; protect from harsh afternoon sun in summer; ensure adequate ventilation if grown indoors.

Warning Signs: Yellowing leaves, root rot, or stunted growth indicate poor soil or drainage issues.

Care Requirements

Care Difficulty
moderate

moderate

Sunlight

full sun to partial shade

Rotate plants for even light exposure; use sheer curtains to filter intense sun; avoid placing near heat sources.

Watering

every 7–10 days during active growth, reduce in winter

Water thoroughly but infrequently; ensure proper drainage; avoid wetting foliage.

Soil

well-draining, sandy loam with moderate organic content

pH: Slightly acidic to neutral (pH 6.0–7.0).

Ensure pots have drainage holes; avoid overwatering; top-dress with compost annually.

Temperature

Prefers cool to moderate temperatures (60–75°F or 15–24°C); can tolerate cooler nights.

Avoid sudden temperature fluctuations; maintain consistent humidity; protect from drafts.

Fertilizing

every 4–6 weeks during spring and summer

Apply fertilizer after watering to prevent root burn; flush soil occasionally to prevent salt buildup; stop fertilizing before flowering to encourage blooms.

Propagation

Methods

Stem cuttings or seed; stem cuttings are faster and more reliable.

Step-by-Step Propagation Guide
  1. Take a 4–6 inch cutting.
  2. Remove lower leaves.
  3. Dip in rooting hormone (optional).
  4. Plant in moist medium.
  5. Maintain humidity.

Best Time: Spring or early summer when the plant is actively growing.

Environment

Warm (70–75°F or 21–24°C), humid, and bright but indirect light.

Medium

Well-draining potting mix with perlite or sand; can also root in water initially.

Hormone

Rooting hormone is optional but recommended for faster rooting.

Timeline

Roots develop in 2–4 weeks; new growth appears in 6–8 weeks.

Tools Needed

Pruning shears, rooting hormone, small pots, misting spray bottle.

Quick Tips

Use healthy, non-flowering stems; keep soil consistently moist; provide bottom heat for faster rooting.

Pruning & Repotting

Pruning Guide
Method

Pinch back tips to encourage branching; trim back leggy stems to just above a leaf node.

Pruning Plan

Prune to maintain shape, encourage bushier growth, and remove dead or diseased parts.

Tools

Clean, sharp pruning shears or scissors.

Checklist

Sterilize tools; prune dead or damaged growth; shape the plant; clean up debris.

Repotting Guide
Best Season

Early spring before new growth begins.

Pot Size

One size larger pot (e.g., +2 inches in diameter); ensure good drainage.

Method

Remove plant gently; trim roots if crowded; place in a slightly larger pot with fresh soil; water thoroughly.

Suggestions

Repot every 2–3 years or when roots fill the pot; beneficial for rejuvenation.

Checklist

Choose appropriate pot size; prepare fresh soil mix; handle roots carefully; water after repotting.

Advanced Care Tips

Watering Mastery
Watering Checklist

Check soil moisture before watering; water deeply; ensure drainage; avoid overhead watering.

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 day to minimize evaporation.

Pro Tip: Use a watering can with a narrow spout to direct water to the roots without disturbing the soil surface.
Watering Schedule Tips

Water deeply once the top inch of soil feels dry; reduce frequency in winter to prevent root rot.

Soil Improvement

Add perlite or coarse sand for drainage; incorporate compost for fertility; use raised beds in heavy soils.

Temperature Stress Management
Signs of Temperature Issues

Wilting, leaf discoloration, or stunted growth in extreme heat or cold.

Cold Stress

Slows growth and may cause leaf drop or damage in temperatures below 50°F (10°C).

Solution: Provide frost protection in cold climates; move potted plants indoors during freezes.

Hot Stress

Leaves may scorch or wilt in prolonged heat above 85°F (29°C).

Solution: Provide shade during peak heat; increase watering frequency; use mulch to retain soil moisture.

Fertilizing Guide
Fertilizing Checklist

Use diluted fertilizer; apply during active growth; avoid winter feeding; flush soil periodically.

Fertilizing Method

Use a balanced liquid fertilizer diluted to half strength every 4–6 weeks during the growing season (spring to early fall); avoid fertilizing in winter.

Common Problems & Solutions

Yellowing leaves in Linum viscosum may indicate nutrient deficiencies, overwatering, or pest infestations, which can impair photosynthesis and overall plant health.

Wilting in Linum viscosum is often a sign of water stress, either due to drought or root issues, which can lead to reduced nutrient uptake and potential plant death if not addressed.

Leaf spots on Linum viscosum may be caused by fungal or bacterial pathogens, leading to reduced photosynthetic efficiency and potential defoliation if severe.

Rotting, particularly root or stem rot, can occur in Linum viscosum due to excessive moisture or fungal infections, leading to decay of plant tissues and eventual plant death.

Toxicity Warning

Cats
Non-toxic

Linum viscosum is not considered toxic to cats. This plant does not contain any known toxic substances that would be harmful to felines.

🌿 Toxic Parts:
none
⚡ Toxic If:

if eaten

No special precautions are needed for keeping Linum viscosum around cats.
Dogs
Non-toxic

Linum viscosum is not considered toxic to dogs. There are no known toxic compounds in this plant that would cause harm to canines.

🌿 Toxic Parts:
none
⚡ Toxic If:

if eaten

No special precautions are needed for keeping Linum viscosum around dogs.
Humans
Non-toxic

Linum viscosum is not considered toxic to humans. It does not produce any known toxic compounds that would cause adverse physiological effects.

🌿 Toxic Parts:
none
⚡ Toxic If:

if eaten

No special precautions are needed for handling or growing Linum viscosum around humans.

Frequently Asked Questions

Q: Is Linum viscosum toxic to pets?

A: There is insufficient data on its toxicity to pets.

Q: How often should Linum viscosum be watered?

A: Water moderately, allowing the soil to dry slightly between waterings.

Q: Does Linum viscosum attract wildlife?

A: Yes, it attracts bees and butterflies due to its nectar-rich flowers.

Quick Reference
Family: Linaceae
Care: moderate
Light: full sun to partial shade
Water: every 7–10 days during activ
Suitable For: ["collectors/enthusiasts","outdoor landscapers","wildlife supporters (attracts bees, butterflies, birds)"]
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