Corn Marigold

glebionis segetum

Also known as: ["Chrysanthemum segetum","Corn Marigold"]

Family: Asteraceae Genus: Glebionis Category: Flowers

Overview

A herbaceous annual plant with bright yellow, daisy-like flowers, native to Europe and Western Asia.

Benefits & Perks

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

Botanical Classification

Phylum: Magnoliophyta
Class: Magnoliopsida
Order: Asterales
Family: Asteraceae
Genus: Glebionis
Botanical Name: Glebionis segetum

Plant Characteristics

Basic Information
  • Category: Flowers
  • Suitable Location: garden bed or container in full sun
  • Suitable For:
    Busy People (low Maintenance) Wildlife Supporters
  • Is Weed: No
  • Allergenicity: low
Environmental Needs
  • Climate: {"temperatureRange":"5–35°C"}
  • Hardiness: {"zones":"5–9"}
  • Misting: rarely required, only if ambient humidity is very low
  • Drainage: Fast-draining to prevent waterlogging.
  • Soil Type: Loamy, well-draining soil with added organic matter; cactus mix can work for containers.
Maintenance Level
  • Maintenance Level: very low
  • Toughness Level: high
  • Pruning Frequency: After flowering; as needed to remove dead or damaged stems.
  • Pruning Intensity: Light to moderate; avoid heavy pruning unless rejuvenating an older plant.
Care Details

Ideal Sunlight Coverage:
Full sun (6–8 hours/day); tolerates partial shade but blooms best in direct light.

Sunlight Tolerance Tips:
Acclimate new plants to full sun gradually; protect from intense midday sun in hot climates; ensure good air circulation to prevent mildew.

Warning Signs: Yellowing leaves with root rot; stunted growth due to poor drainage; wilting despite moist soil.

Care Requirements

Care Difficulty
very easy

easy

Sunlight

full sun

Rotate plants for even growth; provide shade during extreme heat; maximize light exposure during flowering.

Watering

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

Water at the base to avoid foliage wetting; ensure soil dries between waterings; adjust based on weather and growth stage.

Soil

well-drained, loamy soil with moderate organic content

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

Use raised beds for better drainage; avoid heavy clay soils; amend with organic matter annually.

Temperature

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

Avoid sudden temperature shifts; protect from drafts; maintain consistent warmth during active growth.

Fertilizing

every 4–6 weeks during growing season

Apply fertilizer after watering; stop feeding when plant is dormant; use organic options for gentle nutrients.

Propagation

Methods

Stem cuttings or division; seeds are also viable but may vary in vigor.

Step-by-Step Propagation Guide
  1. Take 4–6 inch cuttings.
  2. Remove lower leaves.
  3. Dip in hormone.
  4. Plant in medium.
  5. Keep moist.

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

Environment

Warm (65–75°F), humid, and bright indirect light; protect from direct sun.

Medium

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

Hormone

Optional but recommended for faster rooting.

Timeline

Roots develop in 2–4 weeks; establish in new pot within 1–2 months.

Tools Needed

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

Quick Tips

Use healthy parent stems; maintain consistent moisture; provide bottom heat for faster rooting.

Pruning & Repotting

Pruning Guide
Method

Deadhead by cutting above a leaf node; trim stems just above a healthy bud.

Pruning Plan

Remove spent flowers to encourage reblooming; trim leggy growth to maintain shape.

Tools

Pruning shears, clean scissors.

Checklist

Sanitize tools; deadhead regularly; trim selectively; dispose of clippings.

Repotting Guide
Best Season

Early spring before active growth begins.

Pot Size

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

Method

Remove plant gently; trim roots if crowded; use fresh well-draining soil; ensure pot has drainage holes.

Suggestions

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

Checklist

Prepare new pot; loosen roots; add fresh soil; water lightly; place in appropriate light.

Advanced Care Tips

Watering Mastery
Watering Checklist

Check soil moisture; water deeply; ensure drainage; adjust seasonally.

How to Apply Water Properly

Water thoroughly until it drains from the bottom, ensuring even moisture reaches the root zone; avoid overhead watering to minimize fungal issues.

Pro Tip: Use a watering can with a narrow spout for precise application to the soil surface.
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 sand for drainage; incorporate compost for fertility; ensure good aeration.

Temperature Stress Management
Signs of Temperature Issues

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

Cold Stress

Growth slows or halts; leaves may turn purple or brown; risk of frost damage in freezing temperatures.

Solution: Provide frost protection in cold climates; move potted plants indoors; use row covers for garden plants.

Hot Stress

Leaves may scorch, wilt, or drop; flowering may be reduced; soil dries out quickly.

Solution: Increase watering frequency; provide afternoon shade; use mulch to retain soil moisture.

Fertilizing Guide
Fertilizing Checklist

Check growth stage; dilute fertilizer; apply to soil; avoid foliage contact.

Fertilizing Method

Use balanced liquid fertilizer diluted to half strength every 4–6 weeks during growing season; avoid fertilizing in winter.

Common Problems & Solutions

Yellowing leaves in Glebionis segetum may indicate nutrient deficiencies, overwatering, or pest infestations such as aphids or spider mites, which disrupt chlorophyll production and photosynthesis.

Wilting in Glebionis segetum is often a sign of water stress, either due to drought or overwatering, which can impair nutrient uptake and lead to plant decline if not addressed promptly.

Leaf spots on Glebionis segetum are typically caused by fungal or bacterial pathogens, such as Alternaria or Xanthomonas, resulting in necrotic lesions that can reduce photosynthetic efficiency and weaken the plant.

Rotting in Glebionis segetum, particularly root or stem rot, is commonly caused by fungal pathogens like Fusarium or Pythium in waterlogged soils, leading to decay of plant tissues and eventual plant death.

Toxicity Warning

Cats
Slightly Toxic

Cats are sensitive to pyrrolizidine alkaloids found in Glebionis segetum. Ingestion of large amounts can cause gastrointestinal distress and potential liver damage.

⚠️ Symptoms:
vomiting diarrhea lethargy anorexia
🌿 Toxic Parts:
seeds flowers
⚡ Toxic If:

if ingested in large quantities

Prevent cats from accessing large quantities of the plant. Seek veterinary care if ingestion is suspected.
Dogs
Slightly Toxic

Ingestion of large amounts of Glebionis segetum can lead to gastrointestinal upset and potential liver toxicity in dogs due to the presence of pyrrolizidine alkaloids.

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

if ingested in large quantities

Keep pets away from large quantities of the plant. If ingestion is suspected, contact a veterinarian immediately.
Humans
Slightly Toxic

Glebionis segetum contains pyrrolizidine alkaloids, which can cause liver damage if consumed in significant amounts over time. The toxic effects are cumulative and may not manifest immediately.

⚠️ Symptoms:
nausea vomiting abdominal pain liver damage
🌿 Toxic Parts:
seeds flowers
⚡ Toxic If:

if eaten in large quantities

Avoid consuming large quantities of seeds or flowers. Use only in moderation for culinary purposes, and consult a healthcare professional if accidental ingestion occurs.
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 Corn Marigold toxic to pets?

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

Q: Does Corn Marigold attract wildlife?

A: Yes, it attracts bees, butterflies, and birds.

Q: Is Corn Marigold easy to grow?

A: Yes, it is very easy to grow and requires minimal maintenance.

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