Gardenia

Gardenia jasminoides · Tree/Shrub

An evergreen shrub prized for its creamy, intensely fragrant flowers and glossy leaves. It needs acidic soil, steady moisture and humidity. Outdoors it suits mild climates; elsewhere it is grown in pots and brought in for winter.

Care at a glance

Light

Bright light; morning sun with afternoon shade

Water

Keep evenly moist with rainwater or soft water

Soil

Acidic, rich, well-drained, pH 5.0–6.0

Temperature

Best 65–75 °F by day, 60–65 °F at night; damaged below 20 °F

Spacing

3–6 ft apart, depending on variety

Container

At least 5 gallons, ericaceous mix

Bloom

Blooms late spring to summer

Lifespan

Long-lived shrub, many years

When?

Plant outdoors in spring or early autumn in mild areas. Pot-grown plants can be repotted in spring, just before new growth (estimated).

Step by step

1. Choose a sheltered spot with morning sun and afternoon shade.
2. Use acidic, peat-free ericaceous soil or amend with compost and sulfur.
3. Plant at the same depth as the nursery pot and mulch with pine bark.
4. Water with rainwater where possible; hard water raises soil pH.
5. Feed with an acid-loving plant fertilizer in spring and summer.
6. Indoors, raise humidity with a pebble tray and avoid drafts.
7. Prune lightly right after flowering; later pruning removes next year's buds.

Common problems

Pets

Listed as mildly harmful to cats and dogs; may cause vomiting or diarrhea. If in doubt, ask your vet.

Similar plants