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Frost Proof Gardenia
An abundance of sweetly fragrant, pinwheel-shape double white flowers are produced from spring through mid-summer on upright bushy plants that have a narrower leaf similar to that of Gardenia radicans. More details below

Frost Proof Gardenia

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Frost Proof Gardenia
Gardenia jasminoides 'Frost Proof'

USDA Plant Hardiness Zones: 7a-11 (6a-6b?)  Find Your Zone


Note:   For our customers who live and garden north of USDA Plant Hardiness Zone 8a, where this Gardenia variety is not reliably winter hardy outdoors, you can enjoy growing it in containers that can be moved indoors during winter and placed back outside when temperatures warm up in spring.



Special Attributes

The Frost Proof Gardenia was the winner of the 2007 Garden Writers Best Plants Award for very good reason. Unlike some of the older, more finicky varieties, Frost Proof are unaffected by late cold snaps, and thrive on neglect. An abundance of sweetly fragrant, velvety, double white flowers are produced from spring through mid-summer on upright bushy plants that have a narrower leaf similar to that of Gardenia radicans.  The flowers of Frostproof are great for cutting, lasting longer than the flowers of other gardenia varieties.




Landscape & Garden Uses
 
Growing to 3-4 feet tall and 3-4 feet wide, the Frost Proof Gardenia is an ideal choice as an accent, in groupings or as a wonderfully fragrant hedge in home foundation plantings and landscape borders. Because they like a break from the midday afternoon sun and cold northwesterly winds, they are best planted on the east side of the home or other structures. Needless to say gardenias are a perfect fit for sensory gardens and near windows or outdoor living spaces where the sweet fragrance can be enjoyed.

Spacing:  3' for solid hedge;  6'+ for space between plants




Cultural Preferences

Gardenia are exceptionally easy to grow in moist but well-drained soils of average fertility and part sun, preferably morning sun with some shade or filtered sun in the mid afternoon hours. As with so many other ornamental plants, constantly soggy or wet soils can cause root rot or other plant diseases. The east side of the home or other tall structure is a perfect spot. USDA Zones: 8a-11   Find Your Zone


Soil pH is important!

To flower their best and maintain deep green foliage color, all Gardenia require an acid to moderately acid soil ranging from 4.5 to 6.0 on the pH scale. If your soil is alkaline foliage will turn pale-green to yellow and flowering will be diminished.

Soil pH is a measurement of the alkalinity or acidity of soil and is measured on a scale of 1-14, with 7 as the neutral mark. Any measurement below 7 indicates acid soil conditions, and anything above 7 indicates alkaline. If you're unsure about the pH of your soil and whether or not it's suitable for growing Gardenia it's a good idea to test the soil pH in the planting area. You can quickly test soil pH with an inexpensive soil pH tester probe. To raise the pH (make more alkaline) you can add pelletized limestone to the soil. To lower the pH (make more acid) you can apply Soil SulfurAluminum Sulfate, or Chelated Iron. Adding organic compost to the soil or using compost as mulch can also help to increase acidity and maintain acid soil conditions.





Helpful Articles

Click the link below to get advice from our experts on how to plant, fertilize, prune and water Gardenia plants...





Plant Details

USDA Plant Hardiness Zones: 7a-11 (6a-6b?)  Find Your Zone
Shrub Type:  Evergreen Flowering Shrub
Height at Maturity:  3-4'
Width at Maturity: 3-4'
Growth Habit / Form:  Bushy, Dense, Mounding, Upright 
Flower Color:  White
Flower Size:  Large 3" +
Flowering Period:  Mid- to Late-Spring
Flower Type:  Double
Fragrant Flowers:  Yes - extremely fragrant!
Foliage Color:  Dark Green
Fragrant Foliage:  No
Berries:  No
Berry Color:  NA
Sun Needs:  Morning Sun with Afternoon Shade or Filtered Sun, All Day Filtered Sun
Water Needs:  Average, Lower when established
Soil Type:  Clay (amended), Loam, Sand (amended), Silt 
Soil Moisture / Drainage:  Well Drained Moist
Soil pH:  5.0- 6.5 (Acid)
Maintenance / Care:  Low
Attracts:  Visual Attention
Resistances:  Deer, Drought (when established), Heat, Humidity, Insect



Plant Long & Prosper!

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