Asteraceae
Pot Marigold
Calendula officinalis
Bright, no-fuss blooms that thrive from Zone 1 to 13
Dominicus Johannes Bergsma via Wikimedia Commons (cc by_sa_4)
About this plant
Calendula officinalis is a member of the Asteraceae family, the same sprawling clan that includes daisies and sunflowers, and it carries the family resemblance proudly. Its flower heads are composed of densely packed rays that radiate outward from a central disc, a structure that makes every bloom look almost architectural when you get close. As a perennial, it returns season after season, quietly anchoring whatever bed or container you plant it in.
What makes Calendula officinalis genuinely remarkable for a first-time gardener is its sheer adaptability. Its USDA hardiness range spans Zones 1a through 13b, essentially every climate zone recognized in the United States. That is an extraordinary range. Whether you are gardening in a short-season northern state or a warm southern region, this plant is rated to survive your winters. Pair that resilience with a beginner difficulty rating and a care commitment of roughly ten minutes per week, and you have one of the most forgiving outdoor perennials available.
The gallery
Historical plates & modern photos
Bloom
Ermell via Wikimedia Commons (cc by_sa_4)
Gallery
Dominicus Johannes Bergsma via Wikimedia Commons (cc by_sa_4)
Gallery
Thomas888b via Wikimedia Commons (cc by_sa_3)
How to grow it
Five steps, start to bloom.
Written for beginners. If you've never grown anything before, this is all you need to keep this plant alive and happy.
Pick a spot
Find a spot with enough light for its needs. Plant it outdoors, ideally sheltered from the harshest afternoon wind.
Plant it
Any good all-purpose potting mix or well-drained garden soil will do. Give each plant enough room for its mature spread. Crowding causes more problems than undersizing the bed. Water it in gently once it's settled.
Water it
Water when the top inch of soil feels dry, roughly once a week in summer. Soak the soil, then let it breathe before the next round.
Feed & tend
This one is very forgiving. A balanced all-purpose fertiliser at the start of the growing season is plenty, and you can skip a month without harm. Plan on 10 minutes a week of hands-on care: watering, a quick trim, checking for pests.
Enjoy it
Watch for new growth in spring and summer. If the leaves look tired, trim the oldest ones back to encourage fresh foliage.
Year at a glance
What to do, month by month.
Approximate for a temperate North American zone. Shift earlier the further south you garden, later the further north.
Jan
January: Rest
Dormant
Feb
February: Rest
Dormant
Mar
March: Wake up
New growth
Apr
April: Tend
Routine care
May
May: Tend
Routine care
Jun
June: Tend
Routine care
Jul
July: Tend
Routine care
Aug
August: Tend
Routine care
Sep
September: Tend
Routine care
Oct
October: Tend
Routine care
Nov
November: Wind down
Prep for dormancy
Dec
December: Rest
Dormant
Pet & people safety
Non-toxic to common pets.
Verified against a primary poison-control source. Still, no plant is a snack. Grazing in quantity can upset the stomach of any animal, and the hotline below is there if something goes wrong.
Dogs
Non-toxic
Non-toxic per ASPCA. Mild stomach upset possible with large ingestions.
Source: ASPCA
Record covers Pot Marigold toxicity for Dogs.
Cats
Non-toxic
Non-toxic per ASPCA.
Source: ASPCA
Record covers Pot Marigold toxicity for Cats.
Bloomwise is not a substitute for veterinary or medical advice. Every line above comes from a hand-verified reference.
People also planted
More plants you might love.
Common Yarrow
Achillea millefolium
Flat-topped flower clusters that tough out winters from Zone 1a to 13b
Common Sunflower
Helianthus annuus
Tall, sun-chasing blooms that thrive from Alaska to the tropics
Garden Cosmos
Cosmos bipinnatus
Feathery foliage and wide-open blooms for the most hands-off gardener
Blackeyed Susan
Rudbeckia hirta
Rugged, sun-loving perennial that earns its keep in nearly any yard
Frequently asked
Common questions.
- What USDA zones does Pot Marigold grow in?
- Pot Marigold is hardy in USDA zones 1a to 13b. If your winter lows fall outside that range, grow it in a container you can bring indoors, or treat it as an annual.
- How often should I water Pot Marigold?
- Water about once a week in summer, adjusting for rainfall. Soak the soil, then let it breathe before watering again.
- How much sunlight does Pot Marigold need?
- Pot Marigold prefers four to six hours of sun, ideally morning light.
- Is Pot Marigold safe for pets?
- Yes. Pot Marigold is listed as non-toxic to dogs and cats by verified poison-control sources. No plant is a snack, though, and grazing in quantity can still upset any animal's stomach.
- Is Pot Marigold good for beginners?
- Yes, this is a forgiving plant that tolerates inconsistent watering and the occasional missed feeding. A good choice for a first garden.
Sources
Plant facts on this page come from a blend of public-domain and open-licensed datasets: Biodiversity Heritage Library (historical botanical illustrations, public domain), USDA PLANTS (taxonomy, public domain), GBIF (occurrence and taxonomy, CC-BY 4.0), OpenFarm (crop guides, CC-BY-SA 3.0), and Open-Meteo (climate and hardiness lookup, CC-BY 4.0). Toxicity records come from the ASPCA Animal Poison Control Center and the Pet Poison Helpline; every row is hand-verified against a primary reference.