Light Needs
Mature Height
Mature Spread
Growing Zones
Everything about the Diamond Spire™ Gardenia is impressive. This upright perennial can reach up to 4 feet tall and during the growing season, expect this shrub to be decked out in fragrant blooms. The glossy, dark green foliage is the perfect backdrop for the flowers that start to bloom in the spring and continue to bloom until the fall. The white blooms have 6 lobes and yellow stamens. The flowers give off a spicy, zesty scent, and the fragrance changes throughout the day.
This flowering plant is a perennial in USDA zones 7 through 10. Gardenias are drought and heat tolerant, making them very well suited to not just living but thriving in warm environments. This plant is also disease tolerant for added peace of mind. The fragrant blooms of this Gardenia attract birds and butterflies.
Diamond Spire™ Gardenia Plant Care:
Plant in full sun to part shade. Gardenias grown in warm areas flourish with morning sun and afternoon shade, while plants in northern regions can handle full sun all day. Soil should be slightly acidic and allow good drainage. Test the soil and adjust accordingly because alkaline soil can cause the leaves to turn yellow. Newly planted Gardenias always require more frequent watering, but established plants only need water when the top few inches of the soil are dry. Typically, an established plant needs water once or twice a week during the warmer months.
Fertilize Gardenias once a year in spring using a slow-release fertilizer to encourage new growth and plenty of blooms. Pruning is unnecessary, but deadhead the plant to maintain a tidy appearance.
Diamond Spire™ Gardenia Plant Spacing:
If you want to create a lush flowering hedge, space these plants 2 feet apart. If you wish each plant to be standalone, space the plants at least 4 feet apart. A mature Diamond Spire Gardenia should be 3 to 4 tall and 2 feet wide.
Diamond Spire™ Gardenia Plant Facts
Growing Conditions
- Hardiness ZonesGrowing Zones
- USDA Zones 7 to 10 (perennial); grown as an annual elsewhere (outdoors year-round); grown indoors elsewhere (outdoors year-round); grown in containers elsewhere (grown as a seasonal crop)
- Sun Exposure
- Part Shade to Full Sun (3+ Hours Direct Sun)
- Mature Height
- 3-4 Feet
- Mature Spread
- 2 Feet
- Growth Rate
- Moderate
- Growth Habit
- , Dwarf
- Water Needs
- Consistently Moist
Flowers & Foliage
- Flower Colors
- , White
- Flower Description
- White
- Bloom Time
- Early to Mid-Summer
- Blooms On
-
Old Wood
?
"Blooms on" tells you which stems produce flowers, which decides when it's safe to prune.
- New Wood: Flowers form on stems that grow this season. Prune in late winter or early spring without losing blooms.
- Old Wood: Flower buds form on last year's stems. Prune right after flowering. Pruning in fall or early spring removes next year's blooms.
- Both New and Old Wood: Blooms on last year's stems and again on new growth, so it flowers even after a hard winter or a mistimed pruning. Prune lightly after the first flush of blooms.
- When to Prune
- Right after flowering
- Foliage Color
- , Green
- Foliage Description
- Green
- Foliage Type
- , Evergreen
- Seasonal Interest
- , Spring Flowering, Summer Flowering
Garden Benefits
Plant Overview
- Common Name
- Diamond Spire™ Gardenia
- Botanical Name
- Gardenia hybrid 'Leefive' PPIP
- Plant Type
- Shrub
Simple Plant Spacing Calculator
Please Note: The pictures below are to give a general representation of the different container sizes. The actual size/ages of plants are estimates and will vary based on type of plant, time of year, last pruning & many other factors.
Also Known As:
Quart
Plant Age:
~ 6 months - 1 year
Plant Size:
~ 4"-8"
Pot Size:
~ 4.75"H x 4.5"W
Volume:
1.50 quarts
Also Known As:
2.5 Quart Pot
Plant Age:
~ 1 - 2 years old
Plant Size:
~ 8"-12"
Pot Size:
~ 6.5"H x 6.5"W
Volume:
2.20-2.30 quarts
Also Known As:
#1 Container
1 Gallon
Plant Age:
~ 1 - 2 years old
Plant Size:
~ 10"-14"
Pot Size:
~ 7"H x 7.75"W
Volume:
2.26-3.73 quarts
Also Known As:
#2 Container
2 Gallon
Plant Age:
~ 1.5 - 3 years old
Plant Size:
~ 12"-18"
Pot Size:
~ 9.5"H x 9.5"W
Volume:
1.19-1.76 gallons
Also Known As:
#3 Container
3 Gallon
Plant Age:
~ 2 - 4 years old
Plant Size:
~ 12"-30"
Pot Size:
~9.5"H x 11"W
Volume:
2.32-2.76 gallons
Also Known As:
#5 Container
5 Gallon
Plant Age:
~3-4 years old
Plant Size:
~ 20" - 60"
Pot Size:
~11" H x 10 1/2” W
Volume:
3.5 - 4 gallons
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We want your plants to arrive in great condition! If you notice any issues upon delivery, contact us within 3 days.
Starting January 1, 2026 all bushes, perennials & trees purchased come with an extended 1-year warranty for added confidence. If your plant dies due to a health issue within a year, we’ll make it right.
Plants that are currently in stock typically ship within 2-7 business days after your order is placed.
Plant Addicts ships to the lower 48 states within the U.S. Unfortunately, we do not currently ship to Alaska, Hawaii, or internationally.
This plant cannot be shipped to the following states: AK, HI. These restrictions apply only to this specific plant due to agricultural regulations or other limitations. Other plants may still be available for shipping to these states.
If you have any questions about shipping restrictions, feel free to reach out to our team!