Ideal Conditions. Creeping juniper plants prefer sandy, acidic soils and full sun. They grow in part shade but have a tendency to spread toward areas with more sun. They can be grown in clay and compact soils but only if those soils drain well.
For example, creeping juniper (Juniperus horizontalis) is a hardy, well-behaved evergreen that can eventually spread to a width of 6 to 8 feet (2-2.5 m.), but it won’t happen overnight. If you want the space to fill relatively quickly, allow about 24 inches (61 cm.) between plants.
This low-growing evergreen ground cover is a tough perennial that you can grow at any time between early spring and late fall. However, the best time to plant is in the spring when the temperature is rising. Spring is the ideal season, as it allows the roots to get set before hot and dry weather takes over.Apr 20, 2019
Creeping junipers usually expand their width by one to two feet each year.
|Spacing between plants||Sq. ft. per plant||Number of plants for 100 sq. ft. of planting area|
|12″ x 12″||1 sq. ft.||100|
|15″ x 15″||1.56 sq. ft.||64|
|18″ x 18″||2.25 sq. ft.||44|
|24″ x 24″||4 sq. ft.||24|
To kill the juniper you can use a glyphosate product, such as Killzall or Glyphosel. Both of these products are “super concentrated” containing 41% glyphosate and a surfactant that helps the chemical to stick to foliage. You might want to mix the solution at two to three times the strength.
Water newly planted junipers twice a week when there is no rainfall for the first two months. Junipers need weekly watering for the first summer to develop an extensive root system. After the first summer, most junipers can rely on natural rainfall and fog for moisture.
Junipers respond well to a balanced fertilizer at planting such as two teaspoons of 10-10-10 per 1 gallon plant. Incorporate fertilizer into the soil or spread it around the plant, but avoid directly placing fertilizer into the planting hole.
Dig down near each root on a shoot with a pickax to loosen the soil. The roots may be as deep as 5 inches from the surface. Grasp each shoot and pull it from the ground when all of the roots are exposed. Remove each shoot in the same manner on each plant.
The creeping juniper plant has an extensive and shallow root system, with larger roots coming from the plant’s center and many smaller roots developing as the plant grows. As the branches spread, new roots appear on the branches about 6 inches from the branch tips, helping anchor the plant to the ground.
Though it is known as being quite hardy, the creeping juniper can begin to brown for a variety of reasons, including improper watering, poor soil conditions and pests. Blight can be a serious problem for creeping juniper and cannot only brown but can eventually kill the shrub.
The first is to apply a pre-emergent (click for sources) weed preventer twice each year: mid-March and mid-September. The pre-emergent will prevent weed seeds from sprouting in your juniper patch. Your second task is to control perennial grassy weeds like zoysiagrass, bermudagrass and bahiagrass.
Your groundcovers won’t be able to spread if you mulch with plastic or landscape fabric. Keep groundcovers slightly moist for the first week or so and then water only when the soil feels dry.
A. No need to remove the mulch as long as the soil below is good enough to grow the ground cover. Just pull the mulch aside so you can plant the ground cover in the soil. … The mulch will help conserve moisture and discourage weeds and that will help your ground cover get established quicker.
Many varieties of spreading junipers protect the soil as a ground cover, limiting soil erosion from wind and water runoff. … Transplant these new junipers into their permanent home in the spring after they have shown strong growth.
Cut the bush down to ground level using a chain saw or ax. This helps kill the bush and facilitates its removal. Wait at least a few days before removing the roots; if cutting down the bush kills the plant and the roots, the dry roots are easier to extract from the soil.
Transplanting any tree is risky, including junipers. … The best time to move junipers is in the fall, before the first freeze. Choose a new location that is exposed to the same amount of sunlight as the juniper is currently used to, probably full sun to partial shade. Dig a large hole at the new site.
Junipers withstand hot, dry situations in the landscape. Growing creeping juniper: Plant junipers in full sun in well-drained, dry soil. They are tolerant of heavy and slightly alkaline soil. Fertilize in early spring with a well-balanced, complete fertilizer.
Common juniper (Juniperus communis) and single seed juniper (Juniperus squamata) can tolerate partial shade even in cool-summer areas, but should never be planted in dense shade. Single seed juniper grows in USDA zones 4 through 9.
To grow and look their best, junipers will benefit from fertilization and water (if and when needed). … Fertilize juniper plants in late winter or early spring before new growth begins to flush with a slow-release shrub & tree food.
There are many reasons a juniper might turn brown. Fungal tip blights, cankers, mechanical damage, and salt injury are some of the most common causes. Several juniper samples with tip blight were submitted to the Plant Disease Clinic this spring. Phomopsis and Kabatina tip blights are two common diseases of juniper.
Creeping juniper (J. horizontalis) is mainly used as a groundcover, since it grows up to 2 feet high with a 6- to 8-foot spread. There are many landscape uses with different cultivars.
Junipers tolerates a wide range of soils and soil conditions, except for constantly soggy or wet soils. … Though most junipers will grow well in clay soils, it’s a good practice to amend heavy clay soil with organic matter such as sand, gravel or bagged top soil.
Juniper is low maintenance and easy to grow. The plants need full sun and a well drained soil. … They will grow in a variety of soils, preferring a slightly acidic soil. They are also salt tolerant, able to grow in areas near the ocean where other plants could not survive.
Most shrub and groundcover junipers grow 4 to 8 inches per year. For creeping or spreading junipers this means growth by width and for other bushes it means height. The Blue Rug can grow up to 12 inches per year. Juniper trees, like the Blue Point, grow about 1 foot per year.
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