Gardenia
Gardenia jasminoides
Family Rubiaceae
One gardenia in bloom can perfume an entire room — that legendary creamy-white fragrance is the whole reason this shrub has been loved for centuries. The flowers open waxy and ivory against deep glossy evergreen leaves, spring into summer, and a few cut blooms floated in a bowl scent the house for days.
Southern gardens grow it as a 3-to-6-foot shrub in zones 7-11; everywhere else it thrives in a pot by a bright window, blooming indoors like a houseplant with a perfume counter's job. It has a diva reputation, richly earned — but one open flower settles the argument. Keep it away from curious pets and give it the bright spot it wants.
Full Sun to Part Shade
Moderate water
Slow-Moderate growth
Attracts bees
From the print shop
Growing gardenia? Hang it.
Our Plant Library collection carries gardenia — Gardenia jasminoides, print Nº 200, “Gardenia.”
526 designsfrom $12.99white or black backgroundmatte poster, unframed
Will it fruit where you are?
Enter your ZIP — we look up your USDA hardiness zone (2023 map) and check it against what gardenia actually needs.
Hardy inZones 7-11Gardenia · Common problems
Common gardenia problems
Gardenia · Growing & propagation
Growing gardenia
- Light
- Full Sun to Part Shade
Bright indoors
- Water
- Even moisture
Never soggy, never bone-dry
Soil- ACID, rich, humusy · pH 5.0 - 6.0
Fertilizer- Acid feed (azalea food) spring + midsummer
Pruning- After bloom
Deadhead; light shaping after flowering.
Spacing- 3-4 ft
How to plant & propagate gardenia
- Propagate
- Seed (stratify), cuttings, or layering
Gardenia · Seasonal care & spray guidance
The gardenia growing playbook
When to spray gardenia
Growing season. Acid soil + steady moisture + whitefly patrol; yellowing = soil-acidifier + chelated iron.
Gardenia · Calculators & field guides
A little help in the garden.
Gardenia · Yearly calendar
The gardenia year, month by month
Jan
No calendar activity is listed for this month.
BloomBloomMay to August
What each band means
- Bloom — flowers open — pollinators working, frost on blossoms is the danger.
These are the species' typical months — expect them a few weeks earlier in warm zones and later in cold ones. Watch the plant, not just the calendar.
Gardenia · Ecology & uses
Ecology & uses
Gardenia jasminoides
Gardenia in the garden system
- Shrub layer shrub
Attracts- Bees, Birds
- Moisture
- Facultative / average
Deer- Browsed
Protect young plants
Origin- Introduced
What gardenia is grown for
! Some parts toxic — see notesMildly toxic to pets
Use- Perfume
- Use
- Cut blooms
- Use
- Acid-bed shrubs
Harvesting & storing gardenia
Cut a few for the house — the scent fills a room.
Edibility, identification, and traditional-use notes here are general reference — not medical or veterinary advice, and not a claim that any plant treats or prevents anything. Medicinal ratings record how strongly a plant features in herbal tradition, nothing more. Never eat or dose a plant you have not positively identified. More on how to use this library.
Gardenia · Varieties & cultivars
Choosing a gardenia variety
'August Beauty' (long bloom); 'Frostproof' (hardiest, z7); 'Kleim's Hardy' (single, tough); 'Radicans' (dwarf)
Sources & plant identity
Know what you’re growing.
See where the knowledge comes from.
Gardenia
Gardenia jasminoides
The plant, at a glance.
- Botanical name
- Gardenia jasminoides
- Plant family
- Rubiaceae
- Growth habit
- Shrub · Perennial
- Origin
- Introduced
- USDA plant symbol
- GAJA
- Invasive risk
- Low
Hardiness, size and timing vary with your cultivar, soil and climate.
Rooted in research.
University extension research, brought together with hands-on growing experience at Story Thyme Farms.
for Gardenia
Research from these sources
Publisher marks identify sources, not sponsorship or endorsement.
Questions
Gardenia questions, answered straight.
Is gardenia safe for kids and pets?
With care. Mildly toxic to pets Site it accordingly if children or pets roam the garden. This is general reference, not medical or veterinary advice — call a vet or poison control if something has actually been eaten.
When do you harvest gardenia?
Cut a few for the house — the scent fills a room.
How do you propagate gardenia?
Seed (stratify), cuttings, or layering.
Elsewhere
Where gardenia sits in the library.
Rose
Hydrangea
Common Lilac
Forsythia