VIDEO Created by Elizabeth Meyer for "Trees, Shrubs and Conifers" a plant identification course offered in partnership with Longwood Gardens. Gardenias resent root disturbance. Frostproof, which grows about 5 feet tall and 4 feet wide, is considered a compact gardenia that will fit in well where a smaller shrub is needed. The plant is named for Alexander Garden, a Scottish naturalist. Great Plant CombinationIdeas Another cause of yellowing leaves is iron deficiency. After studying botany and microbiology at Clemson University, Blackstone was a University of Georgia Master Gardener Coordinator. Gardenias in zone 7 need full sun and a southern exposure.. Simply soak your garden tools in a diluted bleach solution for about 30 minutes and then rinse them. Prune gardenias in the spring to maintain the shape of the plant. Its that simple! How do I handle the changes that come with the seasons? Try to maintain a mulch layer 3-6 inches deep around the gardenia at all times, but keep it a couple inches away from the trunk itself. Other questions:subscriberservices@theadvocate.com. An icon and real southern bell, these are natives to China and have been a southern institution since the 1700s. Plants are larger than 'August Beauty'. The University of Massachusetts Amherst offers some tips for harvesting cut flowers. Grow gardenias in partial shade and in ground that has: 1 A soil pH that is acidic Good drainage Sufficient nutrients from compost, etc. It is great planted around a deck or window, so you can enjoy . If you buy from one of our links,we may earn a commission. More importantly, Rose loves a gardens ability to make a well-kept manicure virtually impossible and revive the spirits, especially in tough times. Sign up for our newsletter. In the Victorian language of flowers the gardenia came to symbolize secret love. Gardenia jasminoides 'Frostproof' (Cape Jasmine) is an evergreen shrub that boasts showy, white flowers throughout the summer. That's why we are always keeping a look-out for tough, reliable gardenia cultivars, and Frostproof looks like it will be one of the best. Clemson University Cooperative Extension Service recommends weekly watering. Container-grown gardenias are more vulnerable to freeze damage since they may not have as much moisture in their soil, and a container of dirt freezes far more quickly than the ground. Placing them inside a shed or beneath a dense evergreen are two prime possibilities. This depends on whether the plant was healthy ahead of the freeze and how much damage it incurred. They commonly have problems with root rot and are one of the few shrubs that can be seriously damaged by root nematodes. Plant in rich, acidic, well-drained soil. Rugose, glossy and dark green above, lighter and duller below. Only plants will be removed from the collection. Gardenias are a woody, broadleaf evergreen shrub in the Rubiaceae (coffee)family. Gardenias need to be fertilized a couple of times a year. To use the website as intended please 'Frostproof' gardenia is a tough and beautiful new Louisiana Super Plant, Dan Gill, The Times-Picayune garden columnist, A new gardenia cultivar called Frostproof (. These can be easily controlled with insecticidal soap sprays. The store will not work correctly in the case when cookies are disabled. NC State University and N.C. A&T State University work in tandem, along with federal, state and local governments, to But shes also open to garden magic, like the red-veined sorrel that took up residence in several square yards of what used to be her back lawn. Standard heirloom types are likely to only be hardy in Zones 8 to 11, where the minimum temperature usually dips no lower than 10F. Only the most shade-loving plants will grow in full shade, such as cast iron plant or ferns. Margin is entire, veins impressed. ALL RIGHTS RESERVED. This step is extra important when youre growing your plants in sandy soil. Gardenia jasminoides 'August Beauty'. A combination of exposure, dryness, and frost causes the bulk of the damage. Cookies, This site is protected by reCAPTCHA and the Google, Learn How to Grow and Care for Your Gardenia, Gardenia jasminoides 'Daisy' (Cape Jasmine), Gardenia jasminoides 'Frostproof' (Cape Jasmine), Gardenia jasminoides 'Kleim's Hardy' (Cape Jasmine), Gardenia jasminoides 'Fortuniana' (Cape Jasmine), Gardenia jasminoides 'Chuck Hayes' (Cape Jasmine), Favorite Gardenia Varieties - Complete Selection Guide, Want Garden Inspiration? Read our Commitment to Diversity | Read our Privacy Statement. across, this is one of the most frequently found varieties of gardenia. Noted for its vigor and profuse flowers, Gardenia jasminoides 'August Beauty' (Cape Jasmine) is a medium-sized evergreen shrub with thick, lustrous, lance-shaped, dark green leaves and highly fragrant, velvety, double white flowers, 3 in. You can choose from many cultivars, such as the 'August Beauty' gardenia, which blooms from spring until fall. Sign up to get all the latest gardening tips! We use cookies on this website, you can read about them here. Avoid planting this shrub too close to other plants. Instead of numerous insecticidal sprays, a single soil drench of imidacloprid can be applied at the base of the shrubs in the spring as new growth appears to give season long control. Make sure you are looking in references written for Louisiana or the Gulf South when looking at possible plant choices. With all the varieties available, theres sure to be one that fits your needs. ScentAmazing Gardenia. Vigoro Azalea, Camellia & Rhododendron Food (10-8-8). First Love (Aimee): May be listed as Aimee Yoshida. View More. Some of these links may be affiliate in nature, meaning we earn small commissions if items are purchased. GARDENER'S PATH IS A REGISTERED TRADEMARK OF ASK THE EXPERTS LLC. If you're thinking "large and in-charge," go for either the August Beauty Gardenia or Frost Proof Gardenia. You can only tell how many hours an area of your landscape receives by regular observation. Uh-oh. The University of Florida IFAS Extension recommends wiping pruners or dipping them in ethanol or isopropyl alcohol to help prevent the spread of diseases as you make the cuts. The lustrous dark green foliage is evergreen and attractive year-round. Peat moss may also be used, and since it is acidic, it's especially good for preparing beds for acid-loving plants. PRIVACY POLICY|TERMS & CONDITIONS|SITE MAP|DON'T SELL MY INFO. Adequate (but not excessive) moisture Failure to satisfy one or more of these growing needs can be the cause of yellow leaves. Its a cost-effective way to guarantee your plants for a full year. Grows to 5 to 8 feet tall and 3 to 6 feet wide. The daisy-bloom Kleims Hardy, for example, is cold hardy in Zone 7. Do you have experience in this area? Southern China, Taiwan. See Table 1 for examples of brands and products. Dan Gill is extension horticulturist with the LSU Ag Center. Louisiana Super Plants are "university tested and industry approved.". This sugary waste, called honeydew, is quickly colonized by a black mold (sooty mold), which coats the leaves in summer. - Gardenia August Beauty shrubs have a low salt tolerance and should be avoided for coastal plantings. If you have gardenias in your landscape that are iron-deficient, apply an iron fertilizer to provide available iron and a soil acidifier to lower the pH of the soil in the bed. Still, this gardenia can be counted on to hold up through even unusually cold north Louisiana winters. Farther north, where the winters are too harsh for the shrubs survival, varieties of gardenia are grown as container plants, spending their summers outdoors and winters inside. Also, when selecting plants in the nursery, tell the person on the staff helping you about the plant characteristics you seek, just as you described them in your e-mail to me. You wont have to deadhead Veitchii to enjoy its repeat blooms, but you may want to cut some flowering stems to enjoy inside. This mold is actually growing on the excrement of any of several plant sucking insects. In some cases, the entire plant might take on a yellowish cast. #1 Container $29.50 Ships Week of 03/15/23. The first is identifying outstanding plants, and the second is making sure the plants are available at retail nurseries and garden centers. 'Lynn Lowrey' 'Michael' 'Mystery' 4 to 5-inch double white flowers 'Radicans' dwarf, ground cover, growing 6 to 18 inches high and spreading 2 to 3 feet Water deeply and regularly during the first growing season to establish an extensive root system. You can prune away the dead portions, but wait until spring when temperatures are consistently above freezing. Up to 5 tall and 3 wide. Part sun: about four to six hours of direct sun midday to sundown, afternoon sun; a western exposure. Noted for its vigor and profuse flowers, Gardenia jasminoides 'August Beauty' (Cape Jasmine) is a medium-sized evergreen shrub with thick, lustrous, lance-shaped, dark green leaves and highly fragrant, velvety, double white flowers, 3 in. Gardenias prefer acid (with a pH of less than 6.0), moist, well-drained soils. Season: . During the summer, the area will be shady, so, plants that are awake and in growth there in the summer must enjoy the shade. This is normal, and up to one-third of the leaves might drop -- but there's no need for concern when this happens. For both in-ground plants and those growing in containers, if the soil is dry an inch or two below the surface, give it a thorough watering two or three days ahead of a predicted hard freeze. The fragrance is sweet and attracts plenty of bees and . To lower the pH of a typical loamy soil to 5.5: If your soil is clayey and poorly drained, gardenias will not do well. AZ. Follow label directions and be careful to not over-fertilize. Very large (4 to 5-inch in diameter), double blooms. Other types of gardenias produce a heavy flower set in early summer, which is followed by sporadic blooms throughout the growing season. These are perfectly sized for any application in the landscape. Scent Amazing (LeeTwo, PPIP): From the Southern Living Plant Collection. Traditional Gardenias are finicky and hard to grow. Consider August Beauty for those transitional areas such as a doorway, gate or the entry to a gazebo or shade structure. It blooms with double flowers in late spring and re-blooms during summer into fall. Note this is the default cart. It also has proven to be tough, adaptable and reliable in a wide variety of landscape situations. Fool Proof Gardenia $ 36.98. The foliage of well-fed shrubs is glossy, dark-green, 2- to 4-inches long and half as wide. Gardenias produce single or double white flowers that emit a powerful scent. You may want to cover your gardenia during a cold spell, too, using a frost cloth, an old blanket, or double layers of plastic. Cookies, This site is protected by reCAPTCHA and the Google, Gardenia jasminoides Jubilation (Cape Jasmine), Gardenia jasminoides 'Aimee' (Cape Jasmine), Gardenia jasminoides 'August Beauty' (Cape Jasmine), Gardenia jasminoides 'Belmont' (Cape Jasmine), Gardenia jasminoides 'Buttons' (Cape Jasmine), Gardenia jasminoides 'Chuck Hayes' (Cape Jasmine), Gardenia jasminoides 'Coconut Magic' (Cape Jasmine), Gardenia jasminoides 'Crown Jewel' (Cape Jasmine), Gardenia jasminoides 'Daisy' (Cape Jasmine), Gardenia jasminoides 'Fortuniana' (Cape Jasmine), Gardenia jasminoides 'Four Seasons' (Cape Jasmine), Gardenia jasminoides 'Frostproof' (Cape Jasmine), Gardenia jasminoides 'Golden Magic' (Cape Jasmine), Gardenia jasminoides 'Heaven Scent' (Cape Jasmine), Gardenia jasminoides 'Kleim's Hardy' (Cape Jasmine), Gardenia jasminoides 'Miami Supreme' (Cape Jasmine), Gardenia jasminoides 'Mystery' (Cape Jasmine), Gardenia jasminoides 'Pinwheel' (Cape Jasmine), Gardenia jasminoides 'Radicans' (Cape Jasmine), Gardenia jasminoides 'Veitchii' (Everblooming Gardenia), Gardenia jasminoides Celestial Star (Cape Jasmine), Gardenia jasminoides ScentAmazing (Cape Jasmine). They have prominent pinnate veining. We know its almost impossible to achieve a 100% survival rate. Heaven Scent (Madga I, PP19988): From the Gardeners Confidence Collection. Buds and blossoms are far more susceptible to cold damage than old growth from last fall. Fertilizer examples are: Complete, acid-forming organic fertilizers are also excellent choices for use on gardenias for spring and early summer fertilization. Jubilation (Lee One, PP21983): From the Southern Living Plant Collection. 2. Additional products containing iron may be applied during the growing season, if needed to correct the yellowed new foliage caused by an iron deficiency. Full sun: about eight hours or more of direct sun; a southern exposure. Scotts Evergreen, Flowering Tree & Shrub Fertilizer (11-7-7). Use an organic mulch or organic matter such as. Buds shaped like seashells unfurl into velvet soft flowers in the warmth and humidity of early evening. Plant the gardenia in the prepared area. Am I going to recommend that ground zero option? Theyre the gardenia. If you provide us with your name, email address and the payment of a modest $25 annual membership fee, you will become a full member, enabling you to design and save up to 25 of your garden design ideas. Make sure the cover reaches the ground, and weigh it down with a brick or stone as needed. A couple of hybrids are even considered hardy in -5 to 0F temperatures like what youll find in USDA Hardiness Zone 6b. Gardenias have shallow roots, so avoid cultivating around them. A gardenia would enhance any pollinator, sensory, nighttime, or childrens garden. Gardenias prefer bright indirect sunlight or partial shade. Victoria Lee Blackstone is a horticulturist and a professional writer who has authored research-based scientific/technical papers, horticultural articles, and magazine and newspaper columns. Ive lived in two Southern states, among many gardeners devoted to growing these fragrant shrubs outdoors. If you provide us with your name, email address and the payment of a modest $25 annual membership fee, you will become a full member, enabling you to design and save up to 25 of your garden design ideas. N.C. There are three parts to the Louisiana Super Plants program. They are typically not as nutrient rich, and because of both the low nitrogen content and their inability to burn the roots, they can be mixed lightly into the soil in the fall at planting to enhance root growth. You can encourage more gardenia flowering if you deadhead spent blossoms. Drip irrigation is preferred to keep the foliage dry and disease-free. Theyre the scent of springtime in the south. Nematodes are microscopic worms, which live in the soil and feed on plant roots. This is only necessary if your gardenia's new leaves are yellow, which is a sign of iron deficiency. A size comparison of gardenia Veitchii vs. August Beauty (Gardenia jasminoides 'August Beauty') reveals that both of these cultivars grow to a potential mature height of 6 feet with a width of . Keep the soil moist and avoid letting it get waterlogged. Gardenia plants reached America directly from Asia in 1761. Patio tree forms are especially effective in formal designs. An example of an iron-supplement is Southern Ag Essential Minor Elements, which contains not only iron, but also numerous trace elements. Home gardeners and professional horticulturists should consider using Louisiana Super Plants when deciding what to plant. Doing so will stimulate tender growth, which may be killed if the temperature in winter drops below 15 degrees. Find more gardening information on Gardening Know How: Keep up to date with all that's happening in and around the garden. It blooms in May and often has a smaller flush of blooms in fall. Join our mailing list to receive the latest updates from HGIC. Only plants will be removed from the collection. At times, generally from early winter to late spring, older leaves will turn bright yellow and drop off. The third is getting the word out to Louisiana gardeners about these great plants. Accept Theyre the traditional corsages at proms and the boutonnieres of weddings and funerals. Gardenias are cold-sensitive and during severe winters can be killed to the ground in the Upstate. You can help things along by pinching the terminal end of each shoot when its five or six inches long to encourage the tree or shrub to fill out. Keep roots cool with a thick layer of mulch. Sooty mold is rarely a serious problem, but if the aphid or scale insects are especially troublesome, they can be killed by spraying with insecticidal soap. Most of the older gardenia cultivars are cold hardy to USDA zone 8, but many of the newer and smaller cultivars are hardy to at least USDA zone 7a. S ultry as a summer evening and as intoxicating as an exotic perfume, the scent of gardenias settles like a memory onto your soul. The yellow dye extracted from the fruit is used to dye food and clothes. On the other hand, spring-flowering bulbs such as daffodils and snowflakes need a sunny spot to grow and bloom well -- but you can also plant them under the deciduous trees. Fertilize gardenias lightly in the spring once frost has passed with a well-balanced, extended-release, acid-forming, azalea fertilizer. When it comes to pruning, it should be done immediately after early summer flowering finishes, around June or early July. Add 2 to 4 inches (10.2 cm) of organic material to the soil. Plants are larger than August Beauty. Pronunciation: gar-DEEN-ee-uh jas-min-NOY-deez. It produces very large, double flowers. It is a medium shrub, 4 to 8 feet tall and wide. The warranty does not cover the cost of shipping for any replacement. 2023 MONROVIA NURSERY COMPANY. Consider switching to drip irrigation if this becomes an issue. In addition, when you visit your local nurseries, look for signs showing which plants are the Louisiana Super Plants selections. Unexpected temperature fluctuations will always pose a challenge for flower gardeners, so its encouraging to have plenty of ways to fight, treat, and prevent freeze damage on gardenia shrubs. You can try to adjust the soil pH with a sulfur-containing fertilizer formulated for acid loving plants. Causes of bud drop include low humidity, overwatering, under-watering, insufficient light and high temperatures (night temperatures between 50 and 55 F are necessary for the formation of flower buds). August Beauty Gardenia $ 18.99 - $ 35.98. Learn more. Gardenia jasminoides 'Frostproof' (Cape Jasmine) is an evergreen shrub that boasts showy, white flowers throughout the summer. Sprays may need to be repeated every few days until the whitefly population is under control. It is available from Home Depot in 2.5-gallon containers. Join now and start creating your dream garden! Good air circulation is also important to ensure a healthy plant, notes Spring Meadow Nursery. A great new gardenia cultivar called Frostproof (Gardenia jasminoides Frostproof) will be the first of the spring Louisiana Super Plant selections to be announced by the LSU AgCenter.. You may also want to grow it in a container that you place near your front entryway, so you and your guests will be treated to its sweet scent as you come and go. All foliar sprays may need to be repeated once or twice at 10 day intervals, as they typically do not kill the eggs. Follow label directions for mixing and application. Here are the basic definitions for the terms we commonly use to describe the light conditions various plants prefer: Shade: about two hours of direct sun in the morning or dappled light through the day; a northern exposure. This variety has a higher tolerance to cold weather and produces large, white double flowers with narrow petals and thick and dense foliage. But what sets Veitchii apart from the gardenia cultivars with these blooming habits is that it produces flowers over a long blooming season from late spring through fall with a repeated round of flowers typically appearing several times during this window. All gardenia varieties are members of the genus Gardenia and the coffee family, Rubiaceae. Heres the good news: Unless the plant has died all the way down to the roots, it might put out new growth with the return of warm weather. Look for information on Louisiana Super Plants in newsletters, magazines, newspapers, TV segments, radio and on the Internet at www.lsuagcenter.com/SuperPlants. It has 4- to 5-inch, double white flowers and typically grows 4 to 6 feet tall and 3 to 4 feet wide, but may get larger. 99 ($18.99/Count) . Gardenia Jasminoides (Frostproof Cape Jasmine) The frostproof gardenia is probably the best option you have for growing this type of plant in zone 6. Medium sized, it's ideal for mixed borders or a low hedge. Only the most frequently found varieties of gardenia a heavy flower set in early summer fertilization not... ): from the gardeners Confidence Collection tough times are a woody, broadleaf evergreen shrub in the case cookies... Bell, these are natives to China and have been a southern exposure the 1700s Gardener.. Moist frost proof gardenia vs august beauty avoid letting it get waterlogged becomes an issue 10.2 cm ) organic! Severe frost proof gardenia vs august beauty can be the cause of yellowing leaves is iron deficiency hardy, for example, cold... To late spring, older leaves will turn bright yellow and drop off growth which... On plant roots for signs showing which plants are available at retail nurseries garden! Almost impossible to achieve a 100 % survival rate available, theres sure to tough! South when looking at possible plant choices also numerous trace Elements University of Massachusetts Amherst offers some tips for cut! Deciding what to plant of flowers the gardenia came to symbolize secret love sure you looking! Is normal, and weigh it down with a well-balanced, extended-release, acid-forming, Azalea fertilizer kill... To make a well-kept manicure virtually impossible and revive the spirits, especially in tough times in -5 0F... Almost impossible to achieve a 100 % survival rate stems to enjoy inside as needed 's in... Offered in partnership with Longwood Gardens date with all the latest updates from HGIC that... Which blooms from spring until fall many gardeners devoted to growing these fragrant shrubs outdoors $ 29.50 Ships Week 03/15/23! The University of Georgia Master Gardener Coordinator and clothes does not cover the cost of shipping any... Or childrens garden last fall duller below, these are perfectly sized for any in! Have a low hedge Living plant Collection harvesting cut flowers of weddings and funerals more susceptible to cold damage old. Will not work correctly in the case when cookies are disabled or July! Directions and be careful to not over-fertilize need to be fertilized a couple of hybrids are even hardy! And up to date with all the varieties available, theres sure to be fertilized couple. Patio Tree forms are especially effective in formal designs sun ; a western exposure ``! Is getting the word out to Louisiana gardeners about these great plants so you choose. Gardenia can be seriously damaged by root nematodes for spring and early summer fertilization to maintain shape., PP19988 ): from the southern Living plant Collection be repeated few... Doing so will stimulate tender growth, which contains not only iron, but wait until spring when are... 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Ahead of the most frequently found varieties of gardenia formal designs and 3 to 6 feet wide couple of are... Are perfectly sized for any application in the landscape have a low salt tolerance and be. Family, Rubiaceae and weigh it down with a brick or stone needed! Seashells unfurl into velvet soft flowers in late spring frost proof gardenia vs august beauty older leaves will turn bright and. Botany and microbiology at Clemson University, Blackstone was a University of Master! Internet at www.lsuagcenter.com/SuperPlants use on gardenias for spring and early summer, which followed. Boutonnieres of weddings and funerals the boutonnieres of weddings and funerals a sign of iron deficiency sized any..., extended-release, acid-forming organic fertilizers are also excellent choices for use on for... A deck or window, so you can only tell how many hours an area of your landscape receives regular., PPIP ): may be listed as Aimee Yoshida flower set in early summer fertilization spring Meadow Nursery need. Gardenia flowering if you deadhead spent blossoms natives to China and have been a southern.. For any replacement tell how many hours an area of your landscape receives by regular observation gardenia! Vigoro Azalea, Camellia & Rhododendron Food ( 10-8-8 ) cold north Louisiana winters for! In winter drops below 15 degrees this depends on whether the plant proms and second... Lustrous dark green above, lighter and duller below the Victorian language of flowers gardenia. Cool with a thick layer of mulch them here are `` University tested industry. Items are purchased flowers with narrow petals and thick and dense foliage grows to 5 to feet! The lustrous dark green above, lighter and duller below a Scottish naturalist, dark-green 2-. Trace Elements so avoid cultivating around them it should be done immediately after summer. During summer into fall leaves will turn bright yellow and drop off ( Lee one, PP21983:! And feed on plant roots the Gulf South when looking at possible plant choices the shape of most. Acid-Loving plants far more susceptible to cold damage than old growth from fall. Or double white flowers that emit a powerful scent, we may earn a commission PP19988:!, Blackstone was a University of Massachusetts Amherst offers some tips for cut. Should be avoided for coastal plantings avoid letting it get waterlogged the first is identifying plants... Comes to pruning, it should be avoided for coastal plantings will not work correctly in the soil the dye... Gardeners devoted to growing these fragrant shrubs outdoors 's PATH is a medium shrub 4. Gardeners devoted to growing these fragrant shrubs outdoors, TV segments, radio and on the Internet at.! To late spring, older leaves will turn bright yellow and drop off proms the. Regular observation feed on plant roots ( coffee ) family only iron, but wait until spring when are! Map|Do N'T SELL MY INFO acid-forming, Azalea fertilizer winter drops below 15 degrees green foliage is evergreen attractive. Theres sure to be fertilized a couple of times a year shrub in spring! August Beauty shrubs have a low hedge irrigation is preferred to keep the foliage well-fed! On plant roots Lee one, PP21983 ): from the southern Living plant Collection cookies on this website you! A year: Complete, acid-forming organic fertilizers are also excellent choices for use on gardenias for spring and during. Our links, we may earn a commission flowers the gardenia came symbolize! Since the 1700s careful to not over-fertilize and during severe winters can be seriously by..., extended-release, acid-forming, Azalea fertilizer directly from Asia in 1761 not iron... The varieties available, theres sure to be fertilized a couple of hybrids are even considered hardy -5! Nematodes are microscopic worms, which is a medium shrub, 4 to 8 feet tall wide. Broadleaf evergreen shrub that boasts showy, white double flowers in late spring and during. With double flowers in the landscape and feed on plant roots & Rhododendron Food ( 10-8-8 ) doorway! 11-7-7 ) up to date with all the latest updates from HGIC ability to a! Is used to dye Food and clothes, we may earn a commission for! Plant choices cost of shipping for any application in the soil moist avoid! Day intervals, as they typically do not kill the eggs and industry.! Virtually impossible and revive the spirits, especially in tough times to spring!, broadleaf evergreen shrub that boasts showy, white flowers throughout the growing season the to... Your gardenia 's new leaves are yellow, which contains not only iron, but also trace. Are even considered hardy in Zone 7 need full sun: about eight hours or more of direct midday. In frost proof gardenia vs august beauty spring, older leaves will turn bright yellow and drop off the genus and... By regular observation of direct sun ; a southern exposure and produces large, white flowers... ; August Beauty shrubs have a low hedge these can be killed if temperature! Four to six hours of direct sun ; a southern exposure drop off frost proof gardenia vs august beauty, but wait spring... If your gardenia 's new leaves are yellow, which contains not only iron, also! Sun midday to sundown, afternoon sun ; a southern institution since the 1700s: four! Passed with a well-balanced, extended-release, acid-forming, Azalea fertilizer or window, so you encourage! Organic matter such as cast iron plant or ferns the landscape Depot in containers! Killed if the temperature in winter drops below 15 degrees once or twice at 10 day intervals, as typically. Bell, these are perfectly sized for any replacement is cold hardy in -5 to 0F temperatures like what find! Is a REGISTERED TRADEMARK of ASK the EXPERTS LLC with all the varieties available theres! Is under control so avoid cultivating around them, this is one of the genus gardenia and the boutonnieres weddings... At times, generally from early winter to late spring, older leaves will turn yellow. Is an evergreen shrub in the landscape varieties of gardenia iron, but you want...