CITY OF THORNTON Forestry Trees for Tomorrow This program provides residents with trees planted in their yards at a discounted price. Trees are selected by Forestry staff based on their ability to survive in Colorado soils and climate conditions. Program Requirements/Information Registration for this program will be held on Monday, May 1, 2017 from 8:00am 11:30am at the Margaret Carpenter Recreation Center. Residents can also register online if they have a RecTrak account through the Recreation Division. Trees are available to single family residences only, within the corporate boundaries of the City of Thornton. Tree pricing will be $260 per tree. Trees are planted by a city-contracted tree service, anywhere on the resident s property. When the resident registers for the program, they are given a stake. This stake is placed in the yard where the tree is to be planted. Utility locates are arranged by the City contractor, then the tree is planted. Trees will be planted during the month of June, 2017. Residents will be notified regarding the specific planting date. Trees are 2 caliper at planting, typical of a tree planted in the front yard of a new home. Trees must be planted on the same grade elevation as the street. Trees planted in back yards must have a minimum 3 wide entry gate. The trees come with a one year warranty. This warranty does not apply to trees planted in historically wet areas of a yard, nor does the warranty cover trees that are over or under watered. Forestry staff is available to meet with residents to assist in the tree planting location. We are best reached through email at treehelp@cityofthornton.net or you may leave a message for : Lynn at (303) 255-7875 Nancy at (303) 255-7876
2017 Program Trees Sensation Boxelder - Acer nugundo Sensation Hardiness Zones 4 to 6. Growth habit This tree has a pyramidal habit when young becoming more elliptical with maturity. The right angle branching and strong central leader growth habit makes this tree a good choice for your yard. Foliage Young emerging leaves have a reddish-orange color to them giving the tree a multicolored appearance in the spring and early summer. In the summer leaves are a light green color. Fall foliage color is orange to red and very showy. Landscape value Boxelder trees are usually very tolerant of temperature extremes, drought and high ph soils, which makes Sensation boxelder an excellent choice for the urban environment.
Bloodgood London Planetree Platanus X acerifoloia The London Planetree is a hybrid cross between sycamore (Platanus occidentalis) and oriental planetree (Platanus orientalis). This very popular shade tree was planted extensively throughout Europe because it is very tolerant of urban conditions. It became know as the London Planetree because of its popularity in London, England. Hardiness Zones 5 to 8. Growth habit As a young tree it is pyramidal in form giving way to a round habit at maturity. At maturity it can be over 100 feet tall with an 80 to 90 foot spread. This large shade tree requires a lot of room. Foliage The large, maple-shape leaf usually has five coarsely toothed lobes. Color is a lustrous bright to deep green. Fall color is less showy. Fruit Male and female flowers are inconspicuous and borne on the same tree. The fruit is a bristly ball on a 2 to 4 inch stalk in late summer. This fruit can be either single or in pairs, and hangs on the tree into winter. Bark This tree is extremely attractive in the winter months with its patchy olive-green, creamy-yellow and light tan bark. The light brown bark also exfoliates revealing the colorful patterns, which lie underneath.
Swamp White Oak Quercus bicolor USDA Hardiness Zone: 4 7 Growth habit: 50 60 height, 40-50 crown spread Leaves: The scientific name bicolor refers to the two-colored leaf found on this tree. The upper surface is dark green and the underside of the leave is slightly white and fuzzy. Leaves are 4 to 7 inches long, margin with large irregular blunt teeth, 2 to 4-1/2 inches wide. The fall color can be yellow-orange with leaves turning brown and somewhat persistent on the tree through the winter. Fruit: Acorn, ½ to ¾ inch long single or double on a 1 to 4 inch stalk, tan in color with a slightly fringed cap. Landscape Value: This tree is naturally found on moist low lying sites. However, it can tolerate poorly drained or compacted soils typical in Colorado. Tree is propagated by seed so it is important to know about the seed source (i.e., tolerant of alkaline soils).
Green Mountain Sugar Maple Acer saccharum Green Mountain USDA Hardiness Zone: 4 8 Growth habit: up to 75 in height, 50 crown spread Leaves: 3-5 lobed leaves are medium to dark green in summer and can turn a variety of colors in fall, from brilliant yellow to burnt orange to red depending on the tree. Fruit: The fruit of the sugar maple, called a samara, is a double-winged, papery seedbearing fruit, commonly called a "whirlybird" or "helicopter. Landscape Value: While commercially planted for its delicious syrup, this tree makes a great addition to any yard or park. The Green Mountain cultivar is known for durable foliage, resistance to heat and drought, having an oval crown, and above-average hardiness. One of its most prominent features is amazing fall color. As the seasons change, the leaves turn vibrant shades of yellow, burnt orange and red. The sugar maple can grow comfortably in any type of soil except sand. They are not tolerant of salty conditions.
Thornless Cockspur Hawthorn Crataegus crus-galli var. inermiss USDA Hardiness Zone: 4 7 Growth habit: up to 20 in height, 20 crown spread Leaves: Thick dark green glossy leaf. Attractive fall leaf color can be yellow to orange. Fruit: Dull red berry up to ½ inch that persists into fall months. Tree does have a prolific fruiting habit. When fruit does fall it can be abundant and messy. Landscape Value: This tree is a stout ornamental variety suitable for planting in areas that require a shorter height. This tree has proven to be drought resistant and tolerant of different soil types. The glossy foliage, lack of thorns, unique growth habit, spring flowers, fall fruit, and attractive fall color will provide diversity to the landscape through all of the seasons of the year. Dense branching habit warrants regular interior pruning to eliminate conflicting branches.
Royal Raindrops Crabapple Malus Royal Raindrops USDA Hardiness Zone: 4 8 Growth habit: up to 20 in height, 15 crown spread Leaves: Refined, uniquely shaped leaves emerge glossy deep purple and maintain their rich color through the heat of summer. Fall color is a medley of bronze, orange and purple. Flower: magenta pink flowers bloom in April Fruit: Tiny, persistent, bright red fruits appearing in late summer are prized by wildlife and add winter interest. Landscape Value: This is an upright-spreading, disease-resistant, easy-to-grow, crabapple. It can produce deeply lobed purple foliage which retains excellent color throughout summer. The magenta-pink flowers of spring create tiny maroon-red crabapples (1/4" diameter) that mature in late summer. Crabapples persist on the tree into early winter and are an attractive food source for birds.