|Unmatched for the sweet, intoxicating fragrance of their creamy white flowers, these are favorite evergreen shrubs in mild regions and a popular houseplant elsewhere. Many varieties are available, including 'Radicans Variegata', with white-variegated leaves, and 'Mystery', an extra-large, double-flowered selection. Excellent as container plants, shrub borders, foundation planting, informal hedges and espaliers. Houseplants often bloom in winter if grown in a warm, sunny spot. Good companions for Azaleas and Rhododendrons, they flower best where summers are warm with partial shade from hot afternoon sun. Need ample water and well-drained, humus-rich soil. Feed regularly with acid fertilizer. If the glossy green leaves become yellow, treat with iron sulfate or iron chelate. Watch for aphids and scale. Mulch around shallow roots. Prune only weak or unattractive branches.
Though Gardenias are hardy to 20° F, they will not flower or thrive without intense summer heat.
Attributes - Gardenia
Plant Type: Shrub
Bloom Season: Early Summer through Late Summer
Flower Color: White
Height: 3 ft. to 5 ft.
Width: 6 ft.
Sunlight: Partial Sun
Climate: Zones 9, 10, 11
Notes: Thrives in Acid Soil. Container Plants, Cut Flowers, Fragrant. Susceptible to Aphids.
Gardenia jasminoides, Gardenia jasminoides 'Radicans'