Posted by Brent Wilson on 9/25/2016 to Fertilizing & Watering Tips
Trachelospermum asiaticum, commonly called Asian or Asiatic Jasmine, is very easy to grow when planted right and in the right spot. Below are general guidelines for planting in various types of soil, ranging from clay to sandy and loam soils, and in containers.
Asian Jasmine is ideal for use as an erosion-controlling groundcover massed on sunny or shady embankments, hillsides and slopes. It is perfect for use under the canopies of large shade trees, decks or other overhead structures. Unless you don't mind frequent pruning to keep the plant in bounds, avoid planting in small spaces where the plant cannot be confined. Excellent for use as a spiller plant in container gardens and hanging baskets.
Here's a breakdown of what you need to know for how to plant and grow Asian Jasmine...
Asian Jasmine tolerates a wide range of soils and soil conditions, except for constantly soggy or wet soils.
Testing Soil Drainage
If you are uncertain about soil drainage in the area you intend to plant, it's well worth taking the time to test the drainage before planting. To test soil drainage, dig a hole 12" wide by 12" deep in the planting area. Fill the hole with water and let it drain. Then, after it drains, fill it with water again, but this time clock how long it takes to drain. In well-drained soil the water level will go down at a rate of about 1 inch an hour. A faster rate, such as in loose, sandy soil, may signal potentially dry site conditions. A slower rate indicates poor draining soil and could be a caution you might need to improve drainage, plant in a raised mound or bed, or look for plants that are more tolerant of wet or boggy conditions.
Asian Jasmine grows best in an acid to slightly alkaline soil ranging from 5.5 to 7.0 on the pH scale. Most average garden soils fall between a pH range of 6.0 to 7.0.
Testing Soil pH
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, or whether or not it is suitable for growing Asian Jasmine, it's a good idea to test the 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 Sulfur, Aluminum 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.
Learn More: What is Soil pH and How To Adjust It?
Asian Jasmine aren't picky at all about light. They will grow in full sun to shade. So plant and grow it anywhere!
Planting Asian Jasmine In The Ground
(Scroll down to see planting instructions for containers and pots)
Site Preparation For Mass Planting
Before planting, eliminate existing weeds or grasses in the planting area. You can pull weeds by hand or spray them with a solution of a broad-spectrum weed killer for use in landscape beds. Wait at least two hours after spraying a glyphosate-based product before you begin planting. Before using any chemical read and carefully follow the mixing and application instructions on the product label.
Tilling the soil in the planting area is optional. There are several reason we usually don't recommend it. Tilling on sloped ground loosens soil making it more susceptible to erosion in the event there comes heavy rainfall. Tilling can also bring buried dormant weeds seeds to the surface. Freshly tilled ground is also a perfect environment for weed seeds to sprout in. If you do decide to till, we recommend the application of a landscape weed preventer to the soil surface. Also, be aware that if you are planting groundcover plants under established trees that tilling can cause serious damage to tree roots, which can effect the health of a tree. The feeder roots of trees can often extend well beyond the perimeter of the canopy.
How Many Plants?
If you are mass planting Asian Jasmine over a large area, to determine how many plants you will need it is often necessary to determine total square feet of the planting area. Once you have the square footage then you can determine how far apart you will space plants in the planting area.
Spacing Recommendation: When mass planting space Asian Jasmine plants 18-24 inches apart.
Step-By-Step Planting Instructions
Note: Asian Jasmine plants that have long, leggy runners can be clipped back by up to half their length to promote denser branching.
Set and space all plants out in the planting area before starting to plant. Alternatively, you can use marking paint to mark the spot where each plant will go, which is often necessary when planting on steep slopes, where plants in containers will not stay put.
If there will be more than one row of plants, begin by setting out or marking one straight row of plants. It's best to start along the edge of the planting bed making sure to space plants at a distance far enough from the edge of the planting bed to allow for future spreading. For example, plants with a recommended spacing of 24" apart should be spaced at least 12" from the edge of the bed (or surfaced area) to the center of the plant. After setting out the first row, stagger the plants on the second row and so on until the space is filled.
Spacing Recommendation: When mass planting, space Asian Jasmine plants 18-24 inches apart.
If you applied mulch on top of the ground before planting, which is often a good idea before planting vine-like groundcover plants that have long runners, rake a small area of the mulch back in order to dig the planting hole. Start planting by using a shovel or trowel to dig your planting hole two to three times as wide and as deep or not much deeper than the root ball of your plant. Place native soil removed from planting hole around the perimeter of the hole, in a wheel barrow, or on a tarp.
Depending on the type, fertility and porosity of the soil in the planting area, it may be beneficial to amend the native soil. When planting in heavy clay or poor soils mix in organic matter such as composted manure, bagged top soil, and or a good planting mix at a 50/50 ratio with the soil. When planting in a sandy, quick-draining soil amending with top soil, organic compost, or peat moss will help to retain moisture and supply vital plant nutrients. When planting in a fertile, loamy, well-drained moist soil there is no need to amend soil.
To remove your plant from the container it was growing in, firmly grasp the base of the plant and gently lift and remove it from its container. If the root ball is stuck in the container either cut the container away or place the plant on it's side and gently pound on the side of the container to loosen the root ball. After having removed the plant from the container, use your fingers or a tool to gently loosen some feeder roots around the surface of the root ball.
Set your plant in the planting hole so that the top edge of the rootball is at or slightly above ground level to allow for settling. It may be necessary to place some of your backfill soil mixture in the bottom of the hole to achieve proper planting height.
After setting your plant in the planting hole, use one hand to hold the plant straight while using your other hand to begin backfilling the soil mixture around the root ball, tamping as you go to remove air pockets. When you have filled the hole to the halfway point you can soak the soil. Then continue backfilling to the top edge of the root ball. To avoid suffocating your plant, do not put any soil on top of the root ball.
After planting some or all of your plants, deeply water the entire planting area. For an extra boost, you can also water with a solution of Root Stimulator, which stimulates early root formation and stronger root development, promoting greener, more vigorous plants.
Apply a 1" layer of aged, shredded wood mulch or bark or a 1-2" layer of pine straw around your newly planted plants. Avoid using freshly chipped or shredded wood for mulch until it has cured in a pile for at least 6 months, a year is better.
Planting Asian Jasmine In Containers
Asian Jasmine are ideal for use in container gardens as a soil cover, spiller or for topiary.
When growing in pots Asian Jasmine appreciate a moist but well-drained soil. Constantly soggy soil can and often will cause root rot or other harmful or deadly plant diseases. Therefore, plant in a container or pot that has a drainage hole(s) and use a quality potting soil or potting mix, or a 50/50 combination thereof for planting. You can add some pumice or perlite (maybe 10 to 20%) to the soil mixture to help with drainage.
Make sure to choose a container with drainage holes at the bottom and one that is large enough to allow for 2 to 3 years of growth before shifting up to a larger size container. This might mean your planting pot would be 6 inches or more in width than the root ball of your plant.
Container color will matter as well. Not only will you want to pick a color of container that goes well with the foliage color of your Jasmine, you'll also want to pick a container that matches the style of your home or other structures and other plants in the surrounding environment.
Many nursery & garden centers offer a wide variety of containers to choose from. Before heading out to buy a container take pictures of your home and the surrounding environment. Doing so will help you to choose just the right color and style.
Container Planting Instructions
Before filling your container with the soil mix, we recommend lining the bottom with shade cloth or a porous landscape fabric. This will keep the drain holes from becoming stopped up with soil.
To remove your Asian Jasmine from the container it was growing in, firmly grasp the base of the plant and very gently try to lift and remove it from its container. If the root ball is stuck in the container either cut the container away or place the plant on it's side and tap on the side of the container to loosen the root ball. After having removed the plant from the container, gently loosen some feeder roots around the surface of the root ball.
Pour a small amount of your soil mixture in the bottom of the container. Set your plant in the container and make necessary adjustments by adding or removing some soil so that the top edge of the root ball will sit 1/2 to 1" below the rim of the container.
Backfill with your potting soil around root ball, tamping as you go, until the level of potting soil is even with the top edge of root ball.
Water thoroughly until water starts to drain from the holes in the bottom of the container. Add more potting mix if settling occurs during watering.
Step 6 (Optional)
Apply a 1/2" layer of wood chips or sphagnum moss to soil surface to help conserve moisture.
How To Care For Asian Jasmine
Feeding - Watering - Pruning
How To Fertilize Asian Jasmine
Asian Jasmine will benefit from a feeding in early spring and again in late summer with a slow-release shrub & tree fertilizer or an organic plant food. Cease fertilization 2 months prior to the typical first-frost date in your area. Iron and/or soil sulfur can be applied for deep greening of foliage.
How To Water Asian Jasmine
Asian Jasmine prefers a consistently moist soil when young however are exceptionally drought tolerant when established. As with so many other plants, they do not like constantly soggy or wet soil, which can lead to root rot and other plant diseases. So be careful not to overwater plants!
Immediately after planting deep soak the soil in the planting area to a depth of at least 6 inches. For an extra boost, you can also water with a solution of Root Stimulator, which stimulates early root formation and stronger root development, promoting greener, more vigorous plants.
During First Growing Season
In average garden soil you should not have to water your newly planted Asian Jasmine every day. More often than not, this causes soggy soil conditions that can lead to root rot and other plant diseases. In the absence of sufficient rainfall, water only as needed to keep the rootball and surrounding soil damp to moist. Keep in mind that deep soaking less frequently is much better than splashing just a little water on the plants every day. Plants planted during the winter dormant season, when not actively growing and evaporation is much slower, will require much less water. So, be extra careful not to overwater during winter!
When established, Asian Jasmine is quite drought tolerant. Provide supplemental water occasionally only during prolonged periods of dry weather.
Note: When watering with an automated irrigation system it's best to set your timer to water during the early morning hours and not in the late evening or at night, which can lead to the onset of fungus and other foliar diseases. Check soil moisture within a few days after planting and adjust your irrigation system accordingly to provide only enough water to keep soil moist, but not soggy.
How To Prune Asian Jasmine Plants
At Planting Time
Asian Jasmine plants that are root bound in their nursery pots, or that have very long vines, can be clipped back by up to 50 percent of their length to promote denser plants that will more quickly fill a bare space.
When provided the right amount of space to grow, and spaced properly, Asian Jasmine is very low maintenance, and very little if any pruning will be required. That said, they respond well to pruning. If the foliage grows out of bounds: over lawn areas or other surfaces, you can clip vines back to any desired length.
When To Prune
Asian Jasmine can be pruned any time of year. That said, cease pruning two months prior to the average first-frost date in your area. After plants have gone dormant for winter you can resume pruning.
How To Prune
Use a pruning blade on a motorized weed trimmer or a sharp pair of bypass hand pruners to remove top and side growth as desired. You can also use an edger around the edges of landscape borders.
Plant Long & Prosper!™
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