CAMELLIAS

source: The Spruce


If there’s a reason for a gardener to move to the south, it’s the camellia. This flowering shrub, which has been in cultivation for more than 1000 years, is the Southerner’s answer to the peony. Similarities between peonies and camellias include lushly petaled blooms, and a tendency to live for more than a century.



The genus Camellia, part of the Theaceae family, includes several common ornamental species and many cultivars. C. japonica and C. sasanqua are the species most common in nurseries and catalogs. You may also find hybrids between species, developed by breeders who wish to add new colors and cold hardiness to the market.


Camellias stand for faithfulness and longevity in the language of flowers, and they make a lush addition to winter wedding flower arrangements.


Botanical Name Camellia spp.

Common Names Camellia

Plant Type Broadleaf evergreen shrub

Mature Size 2 to 12 feet (depending on variety)

Sun Exposure Part shade

Soil Type Moist, rich soil

Soil pH 5.5 to 6.5 (acidic)

Bloom Time Seasonal bloomer

Flower Color White, pink, red, yellow, or lavender

Hardiness Zones 7 to 9 (USDA); a few varieties hardy in zone 6b

Native Area Japan, China, Korea


How to Grow Camellia Shrubs

Camellias are best planted in rich, moist soil in a part-shade location. If planting multiple camellia shrubs, space them at least 5 feet apart. They do not like to compete for water and nutrients with trees in close proximity. It isn’t necessary to amend the backfill soil at planting time. Rather, lightly cultivate the top few inches of the soil, raking in compost or well-rotted manure.


Know the mature size of your camellia, and plan accordingly if planting close to a window or home foundation. Plant camellias anytime except in the hottest summer months. 


Light

Camellias thrive in part shade. Camellia sasanqua cultivars can take more sun than japonica types.


Soil

Camellias require well-drained soil, and an ideal soil pH for camellias is within the 6.0 to 6.5 range. If your soil is dense clay and doesn't drain well, consider container culture: choose at least an 18-inch container and a rich, loamy potting soil.


Water

Water camellias so that they are consistently moist. Dry periods that occur during bud development result in fewer flowers with a lower petal count. Drought-stressed plants also open the door to spider mite infestation. Apply a 3-inch layer of mulch to moderate soil temperatures, retain soil moisture, and stifle weeds.


Temperature and Humidity

Camellias are reliably hardy in USDA zones 7 to 9, although the fall-blooming ‘Winter’ series and spring-blooming ‘April’ series of camellias are hardy in zone 6B. Gardeners in cold climates can increase the chances of their camellias surviving the winter by carefully selecting their permanent site in the landscape. Ironically, a northern-facing planting has an advantage over a warmer southern site in the garden. Southern locations in the garden may cause the plant to break dormancy too early, resulting in the loss of flowers to frost damage. A north-facing site combined with a building, hedge, or fence that acts as a windbreak will give cold climate gardeners the best rate of success.


Fertilizer

Proper fertilization is important for a large flower count. Apply a potassium-rich fertilizer in July to facilitate petal development. Apply a slow-release nitrogen fertilizer in the spring to keep foliage dark green and lush. You can also shop for fertilizers specifically designed for camellias, or even an azalea fertilizer.


Pruning Camellias

Pruning should be kept at a minimum with camellias, as it can ruin the natural shape of the shrub. Prune camellias after flowering to keep the interior of the shrubs free of dead and non-blooming branches. Remove any branches that droop on the ground.


Propagating Camellias

Camellias can be propagated by seeds, but it can take quite a long time to grow mature plants. It's more common to propagate by layering.


In summer, bend a long stem down to the ground and make an angled nick in it. Loop the stem into the soil so the wounded area is buried in the ground, and use a rock or stiff wire to hold it in place in the soil. Over the course of a full growing season, a good network of roots should develop from the wound in the buried stem. At this point, you can clip it away from the parent plant and dig up the offspring to move elsewhere.

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