![]() ![]() Plants wilt because the fungus damages their water conducting mechanisms. This fungus begins and multiplies during the cool, moist season, becoming obvious when weather turns warm and dry. Wilts may be contracted through infected seed, plant debris, or soil. Problems Diseases : Verticillium or Fusarium Wilt Summer after flower: Buddleia alternifolia, Calycanthus, Chaenomeles, Corylus, Cotoneaster, Deutzia, Forsythia, Magnolia x soulangeana/stellata, Philadelphus, Rhododendron sp., Ribes, Spirea x arguta/prunifolia/thunbergii, Syringa, Weigela. Spring: Abelia, Buddleia, Datura, Fuchsia, Hibiscus, Hypericum, Perovskia, Spirea douglasii/japonica, Tamarix. Cut back flowered stems by 1/2, to strong growing new shoots and remove 1/2 of the flowered stems a couple of inches from the ground) Always remove dead, damaged or diseased wood first, no matter what type of pruning you are doing.Įxamples: Minimal: Amelanchier, Aronia, Chimonanthus, Clethra, Cornus alternifolia, Daphne, Fothergilla, Hamamelis, Poncirus, Viburnum. Pruning deciduous shrubs can be divided into 4 groups: Those that require minimal pruning (take out only dead, diseased, damaged, or crossed branches, can be done in early spring.) spring pruning (encourages vigorous, new growth which produces summer flowers - in other words, flowers appear on new wood) summer pruning after flower (after flowering, cut back shoots, and take out some of the old growth, down to the ground) suckering habit pruning (flowers appear on wood from previous year. You rejuvenate new growth which increases flower production. By removing old, damaged or dead wood, you increase air flow, yielding in less disease. It is necessary to prune your deciduous flowering shrub for two reasons: 1. Planting How-to : Pruning Flowering Shrubs A 3 inch layer of mulch will help to maintain soil moisture and studies have shown that mulched plants grow faster than non-mulched plants. Amending your soil with compost will help improve texture and water holding or draining capacity. Most plants like about 1 inch of water per week. Soil is moist without being soggy because the texture of the soil allows excess moisture to drain away. Moist and well drained means exactly what it sounds like. Watering Conditions : Moist and Well Drained When rejuvenating plants with canes, such as nandina, cut back canes at various heights so that plant will have a more natural look. Remember to remove branches from the inside of the plant as well as the outside. It is recommended that you do not remove more than one third of a plant at a time. Rejuvenating is removal of old branches or the overall reduction of the size of a shrub to restore its original form and size. This is done to maintain the desired shape of a hedge or topiary. Shearing is leveling the surface of a shrub using hand or electric shears. The best way to begin thinning is to begin by removing dead or diseased wood. This may be done to open up the interior of a plant to let more light in and to increase air circulation that can cut down on plant disease. Thinning involves removing whole branches back to the trunk. Doing this avoids the need for more severe pruning later on. ![]() Pinching is removing the stem tips of a young plant to promote branching. Types of pruning include: pinching, thinning, shearing and rejuvenating. Know the culture of the plant before you buy and plant it! Plants able to take full sun in some climates may only be able to tolerate part sun in other climates. ![]() Partial sun receives less than 6 hours of sun, but more than 3 hours. Full sun usually means 6 or more hours of direct unobstructed sunlight on a sunny day. The only exception is when houses or buildings are so close together, shadows are cast from neighboring properties. Areas on the southern and western sides of buildings usually are the sunniest. Many of these plants will do fine with a little less sunlight, although they may not flower as heavily or their foliage as vibrant. Applications made at that time can force lush, vegetative growth that will not have a chance to harden off before the onset of cold weather.įull sunlight is needed for many plants to assume their full potential. It is best to avoid fertilizing late in the growing season. Excess nitrogen in the soil can cause excessive vegetative growth on plants at the expense of flower bud development. Fertilizers that are high in N, nitrogen, will promote green leafy growth. If one or more nutrients is low, a specific instead of an all-purpose fertilizer may be required. A soil test can determine existing nutrient levels in the soil. Shrubs and other plants in the landscape can be fertilized yearly. Trees need to be fertilized every few years. Take a visual inventory of your landscape. Plant Care Fertilizing How-to : Fertilization for Established PlantsĮstablished plants can benefit from fertilization.
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