Broad-leaved Goldenrod

solidago flexicaulis

Also known as: ["Broad-leaved Goldenrod","Broadleaf Goldenrod"]

Family: Asteraceae Genus: Solidago Category: Flowers

Overview

A perennial herbaceous plant native to North America, known for its bright yellow flowers that bloom in late summer to fall.

Benefits & Perks

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

Botanical Classification

Phylum: Magnoliophyta
Class: Magnoliopsida
Order: Asterales
Family: Asteraceae
Genus: Solidago
Botanical Name: Solidago flexicaulis

Plant Characteristics

Basic Information
  • Category: Flowers
  • Suitable Location: woodland garden, shaded border, or naturalized area
  • Suitable For:
    Wildlife Supporters Outdoor Landscapers Beginners
  • Is Weed: No
  • Allergenicity: moderate
Environmental Needs
  • Climate: {"temperatureRange":"–30–30°C"}
  • Hardiness: {"zones":"3–8"}
  • Misting: rarely required, only if ambient humidity is very low
  • Drainage: Moderately well-draining; avoid waterlogged conditions.
  • Soil Type: Rich, loamy soil with good organic matter; well-draining but moisture-retentive.
Maintenance Level
  • Maintenance Level: low
  • Toughness Level: moderate
  • Pruning Frequency: Annually after flowering or in early spring before new growth begins.
  • Pruning Intensity: Moderate; remove up to one-third of old stems to encourage new growth.
Care Details

Ideal Sunlight Coverage:
Partial shade to full sun (4–6 hours of morning sun preferred); tolerates dappled light in hotter climates.

Sunlight Tolerance Tips:
Acclimate gradually to direct sun to avoid scorching; place in partial shade during peak afternoon heat; adjust indoor placement to mimic natural light conditions.

Warning Signs: Yellowing leaves (overwatering or poor drainage), stunted growth (nutrient deficiency or compacted soil), or root rot (waterlogged conditions).

Care Requirements

Care Difficulty
easy

moderate

Sunlight

partial shade to full shade

Morning sun is ideal; avoid harsh afternoon sun; rotate plant for even growth.

Watering

every 7–10 days during active growth, less frequently in dormant periods

Water thoroughly but infrequently to encourage deep roots; avoid waterlogging; ensure soil dries slightly between waterings.

Soil

moist, rich, well-drained loamy soil

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

Ensure good drainage; enrich with organic matter; avoid compacted soil.

Temperature

Prefers cool to moderate temperatures (60–75°F or 15–24°C); tolerates cooler nights and seasonal fluctuations.

Protect from frost; avoid sudden temperature changes; maintain moderate humidity.

Fertilizing

every 4–6 weeks during spring and summer with balanced liquid fertilizer

Fertilize sparingly; apply in spring before flowering; use organic options like compost for better results.

Propagation

Methods

Division or stem cuttings; division is preferred for mature plants.

Step-by-Step Propagation Guide
  1. Divide clumps into sections with roots.
  2. For cuttings, take 4–6 inch stems, remove lower leaves, and plant in medium.

Best Time: Early spring or fall when the plant is not in active bloom.

Environment

Warm, humid conditions with indirect light; protect from direct sun and drafts.

Medium

Well-draining soil mix with perlite or sand; can also root in water for cuttings.

Hormone

Optional, but rooting hormone can improve success rates for stem cuttings.

Timeline

Division: immediate establishment; stem cuttings: roots in 3–6 weeks, full establishment in 1–2 months.

Tools Needed

Sharp, sterile knife or shears, rooting hormone (optional), pots, well-draining medium.

Quick Tips

Divide every 3–4 years to maintain vigor; use clean tools to prevent disease; keep cuttings consistently moist.

Pruning & Repotting

Pruning Guide
Method

Cut stems back to the base or just above a healthy bud; avoid cutting into old wood.

Pruning Plan

Remove dead or damaged stems after flowering; thin overcrowded clumps to improve air circulation.

Tools

Sharp bypass pruners, gloves, sterilizing solution (e.g., rubbing alcohol).

Checklist

Sterilize tools; prune after flowering; remove dead/damaged stems; clean up debris.

Repotting Guide
Best Season

Early spring before active growth begins.

Pot Size

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

Method

Remove plant gently, trim roots if necessary, place in a slightly larger pot with fresh soil, and water thoroughly.

Suggestions

Repot every 2–3 years or when roots fill the container; beneficial for container-grown plants to refresh soil.

Checklist

Choose appropriate pot size; use fresh soil mix; trim roots if crowded; water after repotting.

Advanced Care Tips

Watering Mastery
Watering Checklist

Check soil moisture before watering; water deeply; ensure proper drainage; adjust for season.

How to Apply Water Properly

Water at the base of the plant, ensuring moisture reaches the root zone. Apply until water begins to drain from the bottom, then allow the soil to dry slightly before the next watering.

Pro Tip: Water early in the morning to minimize evaporation and fungal growth.
Watering Schedule Tips

Water deeply once a week during active growth, reducing frequency in winter or during dormancy. Adjust based on rainfall and soil moisture retention.

Soil Improvement

Add compost or well-rotted manure to enhance fertility and structure; incorporate perlite or sand for drainage.

Temperature Stress Management
Signs of Temperature Issues

Wilting, yellowing leaves, stunted growth, or bud drop in extreme heat or cold.

Cold Stress

Leaves may turn purple or brown; growth slows or halts; risk of root damage in freezing conditions.

Solution: Provide winter protection with mulch; move potted plants to a sheltered location; avoid overwatering in cold.

Hot Stress

Leaf scorch, wilting, or drooping; reduced flowering; increased susceptibility to pests.

Solution: Provide shade during peak heat; increase watering frequency; improve air circulation.

Fertilizing Guide
Fertilizing Checklist

Use balanced fertilizer; apply in spring; avoid high-nitrogen formulas; water after fertilizing.

Fertilizing Method

Use a balanced, slow-release fertilizer in early spring; avoid over-fertilizing, especially in shade-grown plants.

Common Problems & Solutions

Yellowing leaves in Solidago flexicaulis may indicate nutrient deficiencies, overwatering, or pest infestations. It can also be a sign of stress from environmental factors such as excessive sunlight or poor soil conditions.

Wilting in Solidago flexicaulis is often a response to water stress, either from drought or overwatering. It can also result from root damage or pest infestations that disrupt water uptake.

Leaf spots on Solidago flexicaulis are typically caused by fungal or bacterial pathogens, leading to unsightly lesions on the foliage. Severe infections can cause defoliation and reduce the plant's vigour.

Rotting, particularly root rot, can affect Solidago flexicaulis when grown in poorly drained soils or when overwatered. This condition leads to decay of the root system, causing wilting, yellowing, and eventual plant death.

Toxicity Warning

Cats
Slightly Toxic

Cats may experience mild gastrointestinal upset if they ingest Solidago flexicaulus. The plant is not considered highly toxic, but ingestion should be avoided to prevent discomfort.

⚠️ Symptoms:
vomiting diarrhea depression
🌿 Toxic Parts:
leaves stems roots
⚡ Toxic If:

if eaten

Prevent cats from accessing the plant. Seek veterinary advice if ingestion occurs.
Dogs
Slightly Toxic

In dogs, ingestion of Solidago flexicaulis can lead to mild gastrointestinal upset. While not typically life-threatening, the plant may cause discomfort and should be kept out of reach of pets.

⚠️ Symptoms:
vomiting diarrhea lethargy
🌿 Toxic Parts:
leaves stems roots
⚡ Toxic If:

if eaten

Keep pets away from the plant. Contact a veterinarian if ingestion is suspected.
Humans
Slightly Toxic

Solidago flexicaulis contains compounds that can cause mild gastrointestinal distress and allergic reactions in some individuals. The plant's effects are generally not severe but can be problematic for sensitive individuals or those with pre-existing conditions.

⚠️ Symptoms:
nausea vomiting diarrhea skin irritation
🌿 Toxic Parts:
leaves stems roots
⚡ Toxic If:

if eaten

Avoid ingestion. Wash hands after handling the plant to prevent skin irritation.
Important: Keep this plant out of reach of children and pets. If ingestion occurs, contact poison control or veterinary services immediately.

Frequently Asked Questions

Q: Is Solidago flexicaulis toxic to pets?

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

Q: Does this plant attract wildlife?

A: Yes, it attracts bees, butterflies, and birds with its bright yellow flowers.

Q: How much sunlight does Solidago flexicaulis need?

A: It tolerates partial shade to full sun, making it adaptable to various garden conditions.

Quick Reference
Family: Asteraceae
Care: easy
Light: partial shade to full shade
Water: every 7–10 days during activ
Suitable For: ["wildlife supporters (attracts bees, butterflies, birds)","outdoor landscapers","beginners"]
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