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  • … horticultural oil to protect mature trees from insect attack? A. Spraying trees or shrubs with a horticultural, or dormant, oil is recommended as a way to help control repeated attacks of scale, mites, and aphids. Some of the common pests that can be controlled with the oil include euonymus scale, lecanium scale, cottony maple scale and obscure scale, … before it buds out (usually in March), when the temperature is at least 40 degrees Fahrenheit, with no danger of rain or frost within the following 24 hours. Never apply chemicals on a windy …
    Type: Plant Info
  • … Aechmea blanchetiana 'Oregon' is a colorful bromeliad which has long sword-shaped leaves with finely serrated edges. Foliage emerges olive green and becomes coppery red in strong light. … grow on the recesses of tree branches or tucked into cracks on cliffs. They grow in rosettes, with stiff leaves radiating from the center. Plants in the tropical American genus Aechmea are … from “pups”: small side shoots. They like filtered light and loose organic soil mixed with small bark chips or sphagnum moss to increase porosity. …
    Type: Garden Guide Plant
  • … Amur maple can be grown either as a small, upright spreading tree with a dense, rounded crown or a large multi-stemmed shrub, reaching 15-20 feet tall at maturity. … grow in moist, rich, well-drained soils in full sun to part shade and performs well in areas with cool summer climates. Amur maple makes an unusual specimen tree or shrub; its light green leaves turn rich crimson underlain with orange in the fall. Unfortunately, the cooler climate of northeastern North America is so …
    Type: Garden Guide Plant
  • … the plant is commonly grown in Mexico's hot lowlands. Its fragrant white, star-shaped flowers with purple on the back of the petals are borne on large inflorescences on red stems. The … bulbs, which can weigh as much as 20 pounds. The broad, dark maroon-tinted leaves are centered with a depressed midvein that runs the entire length of the leaf, which can reach 36 inches in … blooms best in full sunlight in USDA Zones 8 to 11, where it can grow to a height of 5 feet with a 3-foot spread. It requires very high moisture and should not be allowed to dry out between …
    Type: Garden Guide Plant
  • … elatum . The Magic Fountains series comes in varying shades of blue, lavender, or white, with semidouble flowers that open wide, exposing the cluster of small petals in the center that are called the "bee." This cultivar produces tightly packed, dark blue flowers with a bee that is almost black. It will reach about 30 inches in height, prefers full sun or … to dry out. Cultivated delphiniums require regular fertilizing and dead-heading, and even with "TLC" tend to be short-lived. The word delphinium means "little dolphin," alluding to the …
    Type: Garden Guide Plant
  • … the opposite, toothed leaves along slender twigs and clusters of tubular yellow flowers with long stamens and pistils protruding from the flowers. ‘Butterfly' is very floriferous. … of the branches, the axillary and terminal clusters of flowers can number up to 50 florets, with an extended bloom period. Overall, the foliage is dark green, but new leaves are brushed with bronze and have a fine picotee of red. Fall color is reddish-purple. Bush honeysuckles, …
    Type: Garden Guide Plant
  • … grows into a low mound about 2 feet tall and wide. The foliage is leathery and dark green with serrated leaflets that are evergreen throughout the winter except in extremely cold … New York Night bears large three-inch five-petaled flowers that are dark purple-black with contrasting yellow centers. Hellebores prefer cool, moist soils with a high organic content but are very adaptable requiring only that the site be well-drained. …
    Type: Garden Guide Plant
  • … hellebore grows into a low mound about 2 feet high and 2 feet wide. The foliage is dark green with finger-like clusters of up to ten serrated leaflets which are evergreen throughout the … Peppermint Ruffles is a prolific bloomer of three inch double flowers that are a crisp white with magenta edging and veining. Hellebores prefer cool, moist soils with a high organic content but are very adaptable requiring only that the site be well-drained. …
    Type: Garden Guide Plant
  • … grows into a low mound about 2 feet tall and wide. The foliage is leathery and dark green with finger-like clusters of serrated leaflets that are evergreen throughout the winter except in … cold locations. Romantic Getaway bears three inch five-petaled single flowers that are white with dramatic red markings on each petal. Hellebores prefer cool, moist soils with a high organic content but are very adaptable requiring only that the site be well-drained. …
    Type: Garden Guide Plant
  • … grows into a low mound about 2 feet tall and wide. The foliage is leathery and dark green with finger-like clusters of serrated leaflets that are evergreen throughout the winter except in extremely cold locations. Spanish Flare bears five-petaled flowers that are pale yellow with maroon flares. Hellebores prefer cool, moist soils with a high organic content but are very adaptable requiring only that the site be well-drained. …
    Type: Garden Guide Plant