Outstanding , evergreen shrub with dense , erect leg clothed in sharply pointed , bright green phonograph needle . Depending on variety , works well as a ground cover , hedging , screen or windbreak . command little maintenance . Very tough plant . ‘ Iowa ’ may grow to 10 feet tall by 4 feet wede , but is generally smaller . Forms a open pyramid of blue - green foliage . leaf are awl - shaped and exfoliation - corresponding , dingy - cat valium in colour .
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Characteristics
Requirements
Plant Care
Fertilizing
Light
Watering
Planting
cautiously hit shrub from container and lightly freestanding roots . Position in center of hole , best side facing forward . Fill in with original grease or an amended mixture if require as line above . For larger shrubs , ramp up a water supply well . Finish by mulching and watering well .
If the plant is ball - and - burlapped , transfer fasteners and fold back the top of born burlap , pucker it down into hole , after you ’ve positioned bush . Make certain that all gunny is buried so that it wo n’t wick water away from rootball during red-hot , dry periods . If synthetic burlap , remove if possible . If not potential , shorten off or make slits to allow for roots to modernise into the young soil . For larger shrubs , construct a water well . Finish by mulching and watering well .
If shrub is au naturel - solution , look for a discoloration somewhere near the base ; this mark is likely where the soil line was . If soil is too sandy or too clayey , lend constitutional matter . This will assist with both drain and water keeping electrical capacity . Fill soil , firming just enough to sustain shrub . Finish by mulch and watering well .
Problems
Prevention and Control : Plant resistant varieties and provide maximal tune circulation . pick up all dust , especially around plants that have had a problem . Do not irrigate from overhead and water only during the daylight so that flora will have enough time to dry before night . Apply a fungicide labeled for rust on your plant life . Pest : CaterpillarsCaterpillars are the immature form of moths and butterfly stroke . They are edacious feeders attacking a broad variety of plants . They can be extremely destructive and are characterized as leaf feeders , stem turn borer , folio hair curler , cutworms and tent - formers .
Prevention and Control : keep grass down , spotter individual plants and transfer caterpillars , use labeled insecticides such as soaps and oils , take advantage of natural enemy such as parasitic wasps in the garden and use Bacillus thuringiensis ( biological warfare ) for some caterpillar metal money . Pest : Leaf MinersLeaf Mineris actually a term that applies to various larvae ( of moth , beetle , and rainfly ) that tunnel between upper and lower leaf surfaces , leaving a distinctive , squiggly pattern . A female adult can set several hundred eggs inside the leaf which hatch and give rise to miner . foliage miners attack ornamentals and veg .
Prevention and Control : Keep pot down and sentinel individual plants for tell - narrative squiggles . Pick and put down these leaf and take vantage of born foeman such as parasitical wasps . Know the Growing Degree Days ( GDD ) * for your area to place insecticide spray when most beneficial for ascertain the specific folio miner . Seek a professional recommendation and abide by all label procedure to a golf tee . * GDD number should be available from your local Cooperative Extension berth .
