Red Flax

linum grandiflorum

Also known as: ["Scarlet Flax","Red Linum"]

Family: Linaceae Genus: Linum Category: Flowers

Overview

A vibrant annual plant native to North Africa, known for its striking red flowers and slender stems.

Benefits & Perks

["long-flowering","drought tolerant","wildlife attractant (bees, butterflies, birds)"]

Botanical Classification

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

Plant Characteristics

Basic Information
  • Category: Flowers
  • Suitable Location: outdoor garden bed in a sunny spot
  • Suitable For:
    Beginners Busy People (low Maintenance) Outdoor Landscapers Wildlife Supporters
  • Is Weed: No
  • Allergenicity: low
Environmental Needs
  • Climate: {"temperatureRange":"5–35°C"}
  • Hardiness: {"zones":"8–10"}
  • 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: low
  • Toughness Level: moderate
  • Pruning Frequency: After flowering or every 2–3 months to keep the plant compact.
  • Pruning Intensity: Moderate; remove up to one-third of the plant if overgrown.
Care Details

Ideal Sunlight Coverage:
Full sun (6–8 hours of direct sunlight daily); adjust for intense summer heat by providing partial shade.

Sunlight Tolerance Tips:
Acclimate plants gradually to direct sunlight; protect from harsh midday sun in summer; place in a spot with unobstructed light.

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

Care Requirements

Care Difficulty
easy

moderate

Sunlight

full sun

Rotate plant weekly for even growth; use sheer curtains to filter intense light; avoid shaded areas.

Watering

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

Water thoroughly but infrequently; ensure soil dries between waterings; avoid overhead watering.

Soil

well-draining, sandy loam

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

Use a cactus or succulent mix as a base; avoid heavy clay soils; ensure pots have drainage holes.

Temperature

Prefers warm conditions (65–85°F or 18–29°C); tolerates mild heat but may struggle in extreme cold.

Avoid sudden temperature changes; protect from drafts; maintain consistent warmth during flowering.

Fertilizing

every 4–6 weeks during growing season

Fertilize after watering to prevent root burn; stop feeding when plant is dormant; use a low-nitrogen formula for flowering plants.

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.
  4. Plant in medium.
  5. Keep moist and warm.

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 mix of perlite and peat moss or cactus potting mix.

Hormone

Rooting hormone is recommended to speed up root development.

Timeline

Roots typically form in 2–4 weeks; new growth may appear in 6–8 weeks.

Tools Needed

Pruning shears, rooting hormone, small pots, well-draining medium, plastic wrap or propagator.

Quick Tips

Use healthy, non-flowering stems; maintain humidity with a cover; avoid overwatering.

Pruning & Repotting

Pruning Guide
Method

Pinch back tips or cut stems just above a leaf node; deadhead spent flowers to promote reblooming.

Pruning Plan

Prune to maintain shape, encourage bushier growth, and remove spent flowers to prolong blooming.

Tools

Sharp pruning shears, clean scissors, gloves.

Checklist

Sterilize tools; prune in early morning; remove dead or diseased parts; clean up debris.

Repotting Guide
Best Season

Spring, before the active growing season begins.

Pot Size

Choose a pot 1–2 inches larger in diameter than the current one.

Method

Remove plant gently; trim roots if necessary; place in a new pot with fresh soil; water lightly after repotting.

Suggestions

Repot every 1–2 years or when roots fill the pot; beneficial for younger plants to encourage growth.

Checklist

Select appropriate pot; prepare new soil mix; handle roots carefully; water after repotting.

Advanced Care Tips

Watering Mastery
Watering Checklist

Check soil moisture; water deeply; ensure drainage; avoid wetting foliage.

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 in the morning to reduce 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 to improve drainage; incorporate compost for fertility.

Temperature Stress Management
Signs of Temperature Issues

Wilting, yellowing leaves, or stunted growth in cold; leaf scorch or bud drop in excessive heat.

Cold Stress

Low temperatures slow growth and may cause root damage or death; frost can be lethal.

Solution: Move plants indoors during frost; use frost cloth for outdoor protection; ensure good drainage to prevent cold soil.

Hot Stress

Excessive heat can lead to dehydration, leaf burn, or flower drop; may cease blooming.

Solution: Provide afternoon shade; increase watering frequency; use mulch to retain soil moisture.

Fertilizing Guide
Fertilizing Checklist

Check growth phase; dilute fertilizer; apply to moist soil; rinse tools after use.

Fertilizing Method

Use a balanced liquid fertilizer diluted to half strength every 4–6 weeks during active growth (spring and summer); avoid fertilizing in winter.

Common Problems & Solutions

Yellowing leaves in Linum grandiflorum may indicate nutrient deficiencies, overwatering, or pest infestations, affecting the plant's photosynthetic efficiency and overall health.

Wilting in Linum grandiflorum can result from water stress, either due to drought or overwatering, leading to reduced turgor pressure and impaired nutrient uptake.

Leaf spots on Linum grandiflorum may be caused by fungal or bacterial infections, leading to reduced photosynthesis and potential defoliation if severe.

Rotting, particularly root rot, can occur in Linum grandiflorum if the soil is waterlogged, leading to decay of root tissues and eventual plant death.

Toxicity Warning

Cats
Non-toxic

Linum grandiflorum is not considered toxic to cats. The plant does not produce any known compounds that are harmful to feline health.

⚡ Toxic If:

Generally non-toxic

No specific safety precautions are necessary for growing this plant around cats.
Dogs
Non-toxic

Linum grandiflorum is not considered toxic to dogs. There are no known adverse effects on canine health when the plant is encountered or ingested in typical amounts.

⚡ Toxic If:

Generally non-toxic

No specific safety precautions are necessary for growing this plant around dogs.
Humans
Non-toxic

Linum grandiflorum is not considered toxic to humans under normal circumstances. It is a flowering plant with no known significant toxic effects on human physiology.

⚡ Toxic If:

Generally non-toxic

No specific safety precautions are necessary for handling or growing this plant around humans.

Frequently Asked Questions

Q: How often should I water Linum grandiflorum?

A: Water sparingly, allowing the soil to dry between waterings. It is drought-tolerant once established.

Q: Does Linum grandiflorum attract pollinators?

A: Yes, its bright red flowers attract bees, butterflies, and other pollinators.

Q: Is Linum grandiflorum toxic to pets?

A: No, it is non-toxic to dogs and cats.

Quick Reference
Family: Linaceae
Care: easy
Light: full sun
Water: every 7–10 days during activ
Suitable For: ["beginners","busy people (low maintenance)","outdoor landscapers","wildlife supporters (attracts bees, butterflies, birds)"]
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