Stellate Marigold

calendula stellata

Also known as: ["Stellate Marigold","Star Marigold"]

Family: Asteraceae Genus: Calendula Category: Flowers

Overview

A species of marigold with star-shaped flowers, native to the Mediterranean region.

Benefits & Perks

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

Botanical Classification

Phylum: Magnoliophyta
Class: Magnoliopsida
Order: Asterales
Family: Asteraceae
Genus: Calendula
Botanical Name: Calendula stellata

Plant Characteristics

Basic Information
  • Category: Flowers
  • Suitable Location: outdoor garden bed in full sun
  • Suitable For:
    Beginners Busy People (low Maintenance) Outdoor Landscapers Wildlife Supporters
  • Is Weed: No
  • Allergenicity: low
Environmental Needs
  • Climate: {"temperatureRange":"10–30°C"}
  • Hardiness: {"zones":"8–11"}
  • Misting: rarely required
  • Drainage: Fast-draining to prevent waterlogging.
  • Soil Type: Well-draining, loamy soil with added organic matter.
Maintenance Level
  • Maintenance Level: low
  • Toughness Level: moderate
  • Pruning Frequency: As needed; deadhead flowers regularly during blooming season.
  • Pruning Intensity: Light to moderate; avoid heavy pruning unless necessary.
Care Details

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

Sunlight Tolerance Tips:
Acclimate plants gradually to intense sunlight; protect from harsh afternoon sun in hot regions; ensure good air circulation to prevent fungal issues.

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

Care Requirements

Care Difficulty
easy

easy

Sunlight

full sun

Rotate pots for even growth; use sheer curtains to filter intense light; avoid placing in drafty areas.

Watering

every 7–10 days

Water at the base to avoid foliage disease; ensure soil dries between waterings; avoid overhead watering.

Soil

well-draining, loamy soil

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

Use a mix of potting soil and perlite; avoid heavy clay soils; ensure pots have drainage holes.

Temperature

Prefers 60–75°F (15–24°C); can tolerate cooler temperatures but not frost.

Avoid sudden temperature changes; protect from drafts; maintain consistent room temperature.

Fertilizing

every 4–6 weeks during active growth

Fertilize after watering to prevent root burn; stop feeding when flowering begins; use organic options for gentle nutrients.

Propagation

Methods

Stem cuttings or seed sowing.

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 for cuttings; seeds can be sown in spring or fall.

Environment

Warm (65–75°F), high humidity, and bright indirect light.

Medium

Well-draining potting mix with perlite or sand.

Hormone

Optional, but rooting hormone can speed up root development.

Timeline

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

Tools Needed

Pruning shears, rooting hormone, small pots, well-draining mix.

Quick Tips

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

Pruning & Repotting

Pruning Guide
Method

Pinch back stems to encourage branching; snip off faded flowers at the base.

Pruning Plan

Light pruning to maintain shape and encourage bushier growth; remove spent flowers to prolong blooming.

Tools

Clean pruning shears or scissors.

Checklist

Sanitize tools; prune dead or damaged growth; remove spent flowers; shape as desired.

Repotting Guide
Best Season

Spring, before active growth begins.

Pot Size

One size up (e.g., from 4-inch to 6-inch pot); 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 1–2 years or when roots fill the pot; beneficial for container-grown plants.

Checklist

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

Advanced Care Tips

Watering Mastery
Watering Checklist

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

How to Apply Water Properly

Water thoroughly until it drains from the bottom, ensuring even moisture reaches the root zone; water in the morning to allow foliage to dry.

Pro Tip: Use a watering can with a narrow spout to direct water to the root zone 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 sand for drainage; incorporate compost for fertility; ensure soil is loose and airy.

Temperature Stress Management
Signs of Temperature Issues

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

Cold Stress

Growth slows or halts; leaves may turn purple or develop necrotic spots.

Solution: Move to a warmer location; cover plants if frost is expected; avoid overwatering in cold conditions.

Hot Stress

Leaves may scorch, wilt, or drop; flowers may fade quickly.

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

Fertilizing Guide
Fertilizing Checklist

Check fertilizer type; dilute correctly; apply during active growth; avoid winter feeding.

Fertilizing Method

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

Common Problems & Solutions

Yellow leaves in Calendula stellata may indicate nutrient deficiencies, overwatering, or pest infestations, affecting photosynthesis and overall plant health.

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

Leaf spots on Calendula stellata are typically caused by fungal or bacterial infections, leading to reduced photosynthetic efficiency and potential defoliation.

Rotting in Calendula stellata, particularly root or stem rot, is often caused by fungal pathogens in waterlogged soil, leading to decay and plant death.

Toxicity Warning

Cats
Non-toxic

Calendula stellata is not considered toxic to cats. Its properties are generally safe for feline exposure.

⚡ Toxic If:

Generally non-toxic

Keep ingestion to a minimum to avoid potential gastrointestinal upset.
Dogs
Non-toxic

Calendula stellata is not considered toxic to dogs. It may be used topically for skin conditions in some cases.

⚡ Toxic If:

Generally non-toxic

Monitor for any unusual reactions if ingested.
Humans
Non-toxic

Calendula stellata is not considered toxic to humans. It is often used in herbal remedies and cosmetics due to its anti-inflammatory and wound-healing properties.

⚡ Toxic If:

Generally non-toxic

While generally safe, individuals with plant allergies should use caution.

Frequently Asked Questions

Q: Is Calendula stellata edible?

A: Yes, the flowers are edible and can be used in salads or as a garnish.

Q: Does Calendula stellata attract pollinators?

A: Yes, it attracts bees, butterflies, and other pollinators.

Q: How often should Calendula stellata be watered?

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

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