Coastal Gumweed

grindelia integrifolia

Also known as: ["Coastal Gumweed","Gum Plant"]

Family: Asteraceae Genus: Grindelia Category: Herbs & Weeds

Overview

A perennial herb native to coastal regions, characterized by sticky, resinous flowers and leaves.

Benefits & Perks

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

Botanical Classification

Phylum: Magnoliophyta
Class: Magnoliopsida
Order: Asterales
Family: Asteraceae
Genus: Grindelia
Botanical Name: Grindelia integrifolia

Plant Characteristics

Basic Information
  • Category: Herbs & Weeds
  • Suitable Location: raised garden bed or rock garden in a sunny area
  • Suitable For:
    Collectors & Enthusiasts Outdoor Landscapers Wildlife Supporters
  • Is Weed: No
  • Allergenicity: moderate
Environmental Needs
  • Climate: {"temperatureRange":"5–35°C"}
  • Hardiness: {"zones":"7–10"}
  • Misting: rarely required, only if ambient humidity is very low
  • Drainage: Fast-draining to prevent root rot.
  • Soil Type: Well-draining, sandy loam with organic matter.
Maintenance Level
  • Maintenance Level: moderate
  • Toughness Level: moderate
  • Pruning Frequency: Annually in late winter or early spring; light pruning after flowering.
  • Pruning Intensity: Moderate; remove up to one-third of growth if needed.
Care Details

Ideal Sunlight Coverage:
Full sun (6–8 hours/day); tolerates partial shade in hot climates.

Sunlight Tolerance Tips:
Acclimate gradually to intense sunlight; protect from harsh afternoon sun in summer; ensure good air circulation to prevent mildew.

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

Care Requirements

Care Difficulty
moderate

moderate

Sunlight

full sun to partial shade

Morning sun is ideal; rotate plant for even growth; avoid direct afternoon sun in summer.

Watering

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

Water thoroughly but infrequently; ensure proper drainage; avoid wetting foliage to prevent fungal issues.

Soil

well-draining, sandy loam with moderate organic content

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

Ensure soil dries between waterings; amend with sand if too heavy; avoid waterlogged soil.

Temperature

Prefers 60–75°F (15–24°C); tolerates cooler nights but avoid frost.

Protect from frost; avoid sudden temperature swings; ensure good air circulation.

Fertilizing

every 4–6 weeks during spring and summer

Fertilize in spring/summer only; dilute fertilizer to prevent burn; stop before winter.

Propagation

Methods

Stem cuttings or seed; stem cuttings are more reliable for home growers.

Step-by-Step Propagation Guide
  1. Take 4–6 inch cuttings.
  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), high humidity, and indirect light.

Medium

Well-draining mix like perlite and peat moss or cactus mix.

Hormone

Recommended to promote root development.

Timeline

Roots in 3–6 weeks; establish in 2–3 months.

Tools Needed

Pruners, rooting hormone, small pots, well-draining medium.

Quick Tips

Use sterile tools; maintain humidity with a plastic bag; keep out of direct sun.

Pruning & Repotting

Pruning Guide
Method

Pinch back tips for bushiness; cut just above a leaf node or bud.

Pruning Plan

Prune to maintain shape, encourage bushiness, and remove dead/diseased growth.

Tools

Clean, sharp pruners or scissors.

Checklist

Sterilize tools; prune dead/diseased growth; shape plant; avoid over-pruning.

Repotting Guide
Best Season

Early spring before active growth begins.

Pot Size

Move to a pot 1–2 inches larger in diameter.

Method

Use fresh, well-draining soil; gently tease out root ball; trim any circling roots.

Suggestions

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

Checklist

Choose appropriate pot; prepare new soil; handle roots gently; water after repotting.

Advanced Care Tips

Watering Mastery
Watering Checklist

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

How to Apply Water Properly

Water directly at the root zone until water drains from the bottom; allow excess to drain completely; water in the morning to reduce evaporation and fungal risk.

Pro Tip: Use room temperature water to avoid shocking the roots.
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 sand for drainage; incorporate compost for fertility.

Temperature Stress Management
Signs of Temperature Issues

Wilting, yellowing leaves, stunted growth, or bud drop.

Cold Stress

Slows growth, may cause leaf drop or dieback; vulnerable to frost damage.

Solution: Move to a warmer location; provide frost protection in winter; avoid cold drafts.

Hot Stress

Leaf scorch, wilting, or reduced flowering due to excessive heat.

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

Fertilizing Guide
Fertilizing Checklist

Use balanced fertilizer; dilute properly; fertilize during active growth; avoid winter feeding.

Fertilizing Method

Use a balanced, water-soluble fertilizer diluted to half strength every 4–6 weeks during growing season; avoid fertilizing in winter.

Common Problems & Solutions

Yellow leaves in Grindelia integrifolia may indicate nutrient deficiencies, overwatering, or pest infestations, affecting the plant's photosynthetic efficiency and overall health.

Wilting in Grindelia integrifolia can be caused by water stress, either due to drought or overwatering, leading to impaired nutrient uptake and potential plant death if not addressed.

Leaf spots on Grindelia integrifolia may be caused by fungal or bacterial infections, resulting in reduced photosynthesis and potential defoliation if severe.

Rotting in Grindelia integrifolia is often associated with root or stem rot caused by excessive moisture and fungal pathogens, leading to decay and eventual plant death.

Toxicity Warning

Cats
Slightly Toxic

Cats are sensitive to the diterpene esters in Grindelia integrifolia, which can induce mild gastrointestinal distress and dermatological reactions. The plant's toxicity in cats is similar to that in dogs but may require closer monitoring due to their smaller size.

⚠️ Symptoms:
vomiting diarrhea drooling lethargy skin irritation
🌿 Toxic Parts:
leaves stems flowers
⚡ Toxic If:

if eaten

Prevent cats from accessing the plant. Seek veterinary care if ingestion is suspected or symptoms appear.
Dogs
Slightly Toxic

In dogs, ingestion of Grindelia integrifolia can lead to mild gastrointestinal upset due to the plant's diterpene esters. While generally not life-threatening, the compounds can cause discomfort and may require veterinary attention if symptoms persist.

⚠️ Symptoms:
vomiting diarrhea lethargy loss of appetite
🌿 Toxic Parts:
leaves stems flowers
⚡ Toxic If:

if eaten

Keep plants away from dogs. If ingestion occurs, contact a veterinarian. Monitor for prolonged symptoms.
Humans
Slightly Toxic

Grindelia integrifolia contains diterpene esters and other secondary metabolites that can cause mild gastrointestinal and dermatological irritation upon ingestion or contact. The plant's compounds may disrupt normal cellular functions, leading to localized inflammation and discomfort.

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

if eaten

Avoid ingestion. Wear gloves when handling to prevent skin contact. Keep out of reach of children.
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 Grindelia integrifolia toxic to pets?

A: There is insufficient data on its toxicity to dogs and cats.

Q: How does Grindelia integrifolia attract wildlife?

A: Its flowers produce nectar that attracts bees, butterflies, and birds.

Q: What are the common issues when growing Grindelia integrifolia?

A: Common problems include leaf spots and wilting.

Quick Reference
Family: Asteraceae
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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