General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun
Water Preferences: Mesic
Minimum cold hardiness: Zone 8a -12.2 °C (10 °F) to -9.4 °C (15 °F)
Maximum recommended zone: Zone 11
Plant Height: 15 - 18 inches
Plant Spread: 12-15 inches
Fruit: Other: The fruit is a thorny curved achene.
Flowers: Showy
Other: Pot marigold florets are considered edible.
Flower Color: Orange
Other: Beautiful shining orange flowers with quill-like petals, resembling a cactus dahlia.
Flower Time: Late spring or early summer
Summer
Late summer or early fall
Fall
Suitable Locations: Xeriscapic
Uses: Cut Flower
Suitable as Annual
Wildlife Attractant: Bees
Birds
Butterflies
Propagation: Seeds: Provide darkness
Days to germinate: 10-14
Depth to plant seed: 1/4 inch
Sow in situ
Start indoors
Other info: Self sows freely in good conditions. Pot marigolds typically bloom quickly from seed (in under two months) in bright yellows, golds, and oranges.
Pollinators: Bees
Containers: Needs excellent drainage in pots
Miscellaneous: Tolerates poor soil

Image
Common names
  • Pot Marigold
  • English Marigold

Photo Gallery
Location: Pennsylvania
Date: 2018-08-27
Calendula officinalis 'Radio'
Location: RHS Harlow Carr, Yorkshire, UK
Date: 2018-08-05
Location: Front Garden, Maryland Zone 7a
Date: 7/15/2014
Calendula Radio plant
Location: Gardnerville, Nevada
Date: 2017-08-21

 Photo Courtesy of Baker Creek Heirloom Seeds. Used with permissi
  • Uploaded by Joy

Photo courtesy of Annie's Annuals and Perennials
  • Uploaded by Joy

Photo courtesy of Annie's Annuals and Perennials
  • Uploaded by Joy

 Photo Courtesy of Select Seeds. Used with permission.
  • Uploaded by Joy

Photo courtesy of Select Seeds.
  • Uploaded by Joy
Comments:
  • Posted by virginiarose (Virginia - Zone 8a) on Dec 25, 2013 2:39 PM concerning plant:
    According to Wikipedia:

    Calendulas are used as food plants by the larvae of some Lepidoptera species, including Cabbage Moth, The Gothic, Large Yellow Underwing and Setaceous Hebrew Character.

    http://creativecommons.org/lic...
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