Archive for the ‘Maples (Acer)’ Category

Burls on Tree Trunks

An unusual swelling on trunks of trees and occasionally on large branches are “burls”. They’re round, swollen-looking growths on tree trunks and large scaffold branches. Should or shouldn’t you be concerned? Burls are not uncommon and can be found on cherry, maple, oak, buckeye, ash, willow, locust and walnut in Eastern forests. Root burls may […]

Why My Tree Turns Yellow in Summer

Leaves of some landscape trees turn yellowish- green color in the summer. The common cause for this malady is a lack of minor nutrients (“micronutrients”) that are essential for plant growth. These nutrients are available in the soil in very small quantities. Nutrient deficiencies are not common, except in the high pH soils, particularly the […]

Bird Friendly Trees And Shrubs

Birds visit trees, shrubs, and vines for five things: fruits (berries), sweet nectar (flowers), insects (particularly caterpillars), nuts and seeds, and shelter. This list is a compilation from the North Carolina and Tennessee chapters of the Audubon Society of ornamental plants common in the Southern Appalachian region. Trees and Shrubs (26) Maples (Acer spp.) Downy Serviceberry […]

Avoid Mulch Volcanos

Ever heard of a “mulch volcano? It is a load of mulch that is piled up around the base of a landscape shrub or tree. A common answer I get from homeowners guilty of this practice is that they see professional landscapers and city maintenance crews doing it. Volcano mulch can also cause tree roots […]

Growing Japanese Maples In Containers

Many slow-growing and compact cultivars of Japanese maples (Acer palmatum) and full moon forms (A. japonicum) grow for 3-5 years in containers. Japanese maples develop a decorative canopy, and their lacey foliage turns yellow, orange and/or red in autumn. Most Japanese maples perform well in partial to full day sunlight, but not in full shade. […]

Deciduous Trees With Yellow Fall Leaf Color

While there are numerous trees that offer wonderful yellow fall foliage, some make extraordinary specimens in residential and park landscapes. Enjoy the beautiful yellow and gold tones on a crisp fall day.  Caveat: the quality of fall color may vary from year to year. Big-leaf maple (Acer macrophyllum) – this West Coast Native grows 60-75 […]

13 Native Trees For Fall Color

1. Sweet gum (Liquidambar styraciflua) – large 60-80 feet tall tree whose fall color is a brilliant mixture of yellows, oranges, purples and reds. Zones (5b)6-9). 2. Black gum, tupelo (Nyssa sylvatica) – large 50-50 feet tall tree produces spectacular scarlet fall color. Lots of good cultivars including Green Gable®, ‘Wildfire’ and Red Rage® (Zones […]

Plant Disease Warning: Phytophthora ramorum

Known as “sudden oak death”, this serious plant disease (Phytophthora ramorum) (Pr) from the West Coast kills oak and other species of trees. It has caused devastating effects on the oak populations in California, Oregon, and Washington, and is also present in Europe. Symptoms include bleeding cankers on the tree’s trunk and dieback of foliage. […]

Marcescence (Retaining Leaves Fall And Winter)

Through the fall and winter seasons, certain landscape and woodland trees retain their dead brown leaves on branches. Beech (Fagus spp.) and oak (Quercus spp.) are two common examples. Winter winds and precipitation will eventually force leaves to drop. Plant scientists term the retention of leaves as “marcescence”. There are many theories as to why […]

25 Trees For Autumn Leaf Color

Fall leaf colors of woodland and landscape trees vary from one year to the next. Foliage colors are determined by monthly weather conditions and several environmental factors. Rainfall amounts and daily temperature levels during August and September are key determining factors. Best autumn leaf colors develop as daytime hours are shortening, daytime hours are sunny and […]