Most varieties grow up to 40 feet tall, but some dwarf varieties are shorter. Although the tree looks delicious, neither javelina nor deer like to nibble on this evergreen. The fight against rhizosphaera needle cast. (Cercidiphyllum japonicum)
60-80' Yellow fall color on heart shaped foliage few pest problems. Colorado blue spruce (Picea pungens) is no longer recommended for Minnesota landscapes due to its susceptibility to several debilitating spruce diseases, most specifically Rhizosphaera needle cast and Cytospora canker. Of course, the larger the tree, the more work it is to install so the more it costs to plant. Here are the links on how to plant and appropriately irrigate evergreen trees. more info, (Stewartia psuedocamellia)
30-40' White Camellia like flowers in summer, wonderful orange exfoliating bark. But landscapers also value Ginkgo biloba (commonly called "maidenhair tree") for the exquisite fan-shape of its leaves.. Rhizosphaera needle cast is a common foliar disease of spruces and other conifers caused by the fungus Rhizosphaera kalkhoffii. Since it is difficult to target the fungus directly, rot resistant spruce trees appear to be the ideal counter measure. (Halesia tetraptera) 20-35’ Bell shaped flower, good understory tree, yellow hue … Although it often is used to make a formal statement in a garden, it. Fat Albert Blue Spruce – Sporting a shape similar to that of the Colorado Spruce, Fat Albert doesn’t grow as tall, so it won’t “take over” more than its allotted space. Con – Watch for spider mite webs that can form in June. Already, approximately one spruce tree in six is rotted to some extent, and the costs are estimated to 2 million SEK each day. more info, (Cornus Kousa)
20-30' Anthracnose resistant white flowers in spring followed by raspberry like fruit. Norway spruce is relatively resistant. Austrian Pine – This long-needled evergreen often is mistaken for a young ponderosa pine although it is far more graceful. This very stately pine is so soft that most homeowners literally hug these trees! When acquiring evergreen trees you should make the time to hand pick the specimens going into your yard. It makes a most effective windbreak or privacy screen. I live in Sperry, Ok and would like to plant a fast growing pine that is full at the bottom, to be used as a screen from the neighbors house. Colorado Spruce – When customers don’t know the name of this tree they just refer to it as “The one that looks like a Christmas tree.” The very thick branches swoop horizontally forming a perfect broad pyramid. If you have
specific landscape requirements, we would be happy to consult with
you on a tree choice. Here is a list of the top 10 evergreen trees that stand up to mountain winds, winter cold, and resist the naturally occurring insects and diseases found at higher elevations. 3. Plant disease resistant cultivars and varieties. A dense tree that easily blocks out wind and neighbors, the Norway is ideal for use as a privacy barrier, windscreen, or even a traditional showpiece. Tip blights are fungal diseases that typically cause dieback to new, emerging shoots (Photo 4). Perfect for all natural landscapes it makes an attractive grouping on hillsides or berms with low-growing perennials. I really can't think of any pine or spruce trees that are disease resistant. So large a tree that it fits only in the largest properties. more info. Thank you, Not an expert on your area so please check the USDA recommended zones. more info. Throughout the week Ken can be located at Watters Garden Center, 1815 W. Iron Springs Road in Prescott, or contacted through his website at WattersGardenCenter.com. Evergreens need to be very hardy to thrive in the mountains of Arizona. We then field dig, wrap the roots in burlap, transplant it into a grower’s container, and continue to root it for another season. Norway Spruce – Spruces grow so well at local elevations that most will thrive in local landscapes. Once an evergreen tree stresses and becomes ugly, it rarely grows its way to beauty. So consider the cost of having your nursery plant it for you as money well spent. Planting & Delivery Service – Evergreens are unusually heavy, bulky, and can inflict bodily damage while being installed in a landscape. Try Top10Trees.com for some suggestions, Your email address will not be published. This column is about the right plants in the right places. Concolor fir (Abies concolor) and some white spruce are good large tree alternatives with blue-green foliage to Colorado spruce. There are also some blue spruce dwarf cultivars that are … Blue spruce is very susceptible, as are black, Engelmann, red, Sitka, and white spruces. Carolina Silverbell. Vanderwolf Pine – Take a close look and you will see that the top of each needle is blue with a green underside. Until next week, I’ll be helping local gardeners looking for evergreen trees here at Watters. This spring and summer, we have found that spruce trees, which include blue, white and Norway species, are under attack. The most noteworthy aesthetic trait of this ancient drought-tolerant tree is its fall color. Colorado Spruce – When customers don’t know the name of this tree they just refer to it as “The one that looks like a Christmas tree.” The very thick branches swoop horizontally forming a perfect broad pyramid. Forget spraying harsh chemicals...learn more about our Disease Resistant Plants & Trees today! They are being impacted by a fungal disease which goes by the name of Rhizosphaera needle … White spruce is somewhat susceptible. There are links at the end of this article for mountain planting and for safe watering. Chrysomyxa weirii: Destroy heavily infected trees. The lowland deserts have a significant influence on mountain landscapes, and some of their desert evergreens will grow up here, but not many. This list of hardy trees will survive with just one caveat: Each is prone to a slow death if overwatered. (Acer griseum)
20-30' Exfoliating orange bark for winter interest
and good fall color. Looking for the perfect tree to fill out an open space in your landscape? This is why its good to know the origin of the trees you plan to buy. ALL RIGHTS RESERVED. Written by Al Koeppel. Pro – A small format evergreen that needs little to no maintenance, but has that classic evergreen look and feel. The dense, stout, pyramidal growth is uniform right to the crown. Evergreen tree resistant from needlecast disease . Considered drought hardy, this tree prefers dry, windy conditions. Your email address will not be published. more info. No tree or shrub is completely immune to insect or disease attack, but you can reduce pest issues: Choose plants with growing requirements that match your site conditions. Black Hills Spruce – With the deepest green of any evergreen and a density that light dares not shine through, this spruce’s perfect cone-shaped symmetry stands out in any landscape. Many mistake it for a juniper in appearance, but this blue evergreen forms a golfball sized cone instead of juniper berries, making it less allergy inducing than a native juniper. It’s very unusual and distinctive shape is unique to mountain landscapes. When trees are planted too close together, air circulation around the tree is greatly reduced. Considered drought hardy, this tree prefers dry, windy conditions. (Thuja plicata)
60-90� Resistant to root rot, likes moist soils. It is the hardiest of the ornamental pines without the bug issues that plague many native pines. Deodar Cedar – This fast grower has a central leader with soft branches that sway gracefully in the wind. (Styrax japonicus)
20-30' White Flowers (May/June) that hang down, pest free. Some locations have an additional infection period in September and October. 10 Hard-to-Kill Evergreen Trees. Asked October 3, 2019, 10:53 AM EDT. Very fast growing and readily tolerates mountain soil, valley winds, and bitter winter cold. Norway spruce trees that are preinoculated at low densities with the bark beetle‐associated blue‐stain fungus Ceratocystis polonica become much more resistant towards subsequent massive infection with the same fungus (Krokene et al., 1999). Apply a fungicide when new shoots are 1½ inches long and again 3 weeks later to protect young needles from infections that occur in May through June. New growth is blue to green with clusters of pinecones as the tree matures. The color of the needles on spruce trees varies from light … Canker diseases. After planting a mature evergreen tree it’s possible to look like you’ve been in a cat fight, and the cat won!