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Malus transitoria
( Transitoria Crabapple )

This is a graceful, spreading, deciduous tree. Leaves are ovate, often lobed, dark green, up to 3 inches long. Yellow in fall. Pink buds produce white flowers in spring. Fruit is yellow, very small, to 3/8 inch in diameter. Grows to 25 feet tall and 30 feet wide. This tree does well in most soil, but will be more attractive if fed peat and compost.
Important Info : Be careful not to prune too heavily or apply too much fertilizer since these can increase susceptibility to fire blight.


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Characteristics
Cultivar: n/a  
Family: Rosaceae  
Size: Height: 10 ft. to 30 ft.
Width: 10 ft. to 20 ft.  
Plant Category: landscape, trees,  
Plant Characteristics: decorative berries or fruit, spreading,  
Foliage Characteristics: medium leaves, deciduous,  
Foliage Color: dark green, green,  
Flower Characteristics: fragrant, long lasting, single,  
Flower Color: pinks, whites,  
Tolerances: deer, pollution, rabbits,  
Requirements
Bloomtime Range: Mid Spring to Late Spring  
USDA Hardiness Zone: 4 to 8  
AHS Heat Zone: 2 to 2  
Light Range: Sun to Full Sun  
pH Range: 5.5 to 7.5  
Soil Range: Some Sand to Some Clay  
Water Range: Normal to Moist  

Plant Care



Fertilizing
How-to : Fertilization for Established Plants

Established plants can benefit from fertilization. Take a visual inventory of your landscape. Trees need to be fertilized every few years. Shrubs and other plants in the landscape can be fertilized yearly. A soil test can determine existing nutrient levels in the soil. If one or more nutrients is low, a specific instead of an all-purpose fertilizer may be required. Fertilizers that are high in N, nitrogen, will promote green leafy growth. Excess nitrogen in the soil can cause excessive vegetative growth on plants at the expense of flower bud development. It is best to avoid fertilizing late in the growing season. 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.

Light
Conditions : Full to Partial Sun

Full sunlight is needed for many plants to assume their full potential. Many of these plants will do fine with a little less sunlight, although they may not flower as heavily or their foliage as vibrant. Areas on the southern and western sides of buildings usually are the sunniest. The only exception is when houses or buildings are so close together, shadows are cast from neighboring properties. Full sun usually means 6 or more hours of direct unobstructed sunlight on a sunny day. Partial sun receives less than 6 hours of sun, but more than 3 hours. Plants able to take full sun in some climates may only be able to tolerate part sun in other climates. Know the culture of the plant before you buy and plant it!

Conditions : Full Sun

Full Sun is defined as exposure to more than 6 hours of continuous, direct sun per day.

Watering
Problems : Creating a Water Ring

A water ring, sometimes called a water well, is a mound of compacted soil that is built around the circumference of a planting hole once a plant has been installed. The water ring helps to direct water to the outer edges of a planting hole, encouraging new roots to grow outward, in search of moisture. The height of the mound of soil will vary from a couple of inches for 3 gallon shrubs, to almost a foot for balled and burlapped trees, especially those planted on a slope. Mulch over the ring will help to further conserve moisture and prevent deterioration of the ring itself. Once a plant is established, the water ring may be leveled, but you should continue to mulch beneath the plant.

Conditions : Normal Watering for Outdoor Plants

Normal watering means that soil should be kept evenly moist and watered regularly, as conditions require. Most plants like 1 inch of water a week during the growing season, but take care not to over water. The first two years after a plant is installed, regular watering is important for establishment. The first year is critical. It is better to water once a week and water deeply, than to water frequently for a few minutes.

Planting
How-to : Planting a Tree

Dig out an area for the tree that is about 3 or 4 times the diameter of the container or rootball and the same depth as the container or rootball. Use a pitchfork or shovel to scarify the sides of the hole.

If container-grown, lay the tree on its side and remove the container. Loosen the roots around the edges without breaking up the root ball too much. Position tree in center of hole so that the best side faces forward. You are ready to begin filling in with soil.

If planting a balled and burlaped tree, position it in hole so that the best side faces forward. Untie or remove nails from burlap at top of ball and pull burlap back, so it does not stick out of hole when soil is replaced. Synthetic burlap should be removed as it will not decompose like natural burlap. Larger trees often come in wire baskets. Plant as you would a b&b plant, but cut as much of the wire away as possible without actually removing the basket. Chances are, you would do more damage to the rootball by removing the basket. Simply cut away wires to leave several large openings for roots.

Fill both holes with soil the same way. Never amend with less than half original soil. Recent studies show that if your soil is loose enough, you are better off adding little or no soil amendments.

Create a water ring around the outer edge of the hole. Not only will this conseve water, but will direct moisture to perimeter roots, encouraging outer growth. Once tree is established, water ring may be leveled. Studies show that mulched trees grow faster than those unmulched, so add a 3"" layer of pinestraw, compost, or pulverized bark over backfilled area. Remove any damaged limbs.

Problems
Pest : Aphids

Aphids are small, soft-bodied, slow-moving insects that suck fluids from plants. Aphids come in many colors, ranging from green to brown to black, and they may have wings. They attack a wide range of plant species causing stunting, deformed leaves and buds. They can transmit harmful plant viruses with their piercing/sucking mouthparts. Aphids, generally, are merely a nuisance, since it takes many of them to cause serious plant damage. However aphids do produce a sweet substance called honeydew (coveted by ants) which can lead to an unattractive black surface growth called sooty mold.

Aphids can increase quickly in numbers and each female can produce up to 250 live nymphs in the course of a month without mating. Aphids often appear when the environment changes - spring & fall. They're often massed at the tips of branches feeding on succulent tissue. Aphids are attracted to the color yellow and will often hitchhike on yellow clothing.

Prevention and Control: Keep weeds to an absolute minimum, especially around desirable plants. On edibles, wash off infected area of plant. Lady bugs and lacewings will feed on aphids in the garden. There are various products - organic and inorganic - that can be used to control aphids. Seek the recommendation of a professional and follow all label procedures to a tee.

Pest : Caterpillars

Caterpillars are the immature form of moths and butterflies. They are voracious feeders attacking a wide variety of plants. They can be highly destructive and are characterized as leaf feeders, stem borers, leaf rollers, cutworms and tent-formers.

Prevention and Control: keep weeds down, scout individual plants and remove caterpillars, apply labeled insecticides such as soaps and oils, take advantage of natural enemies such as parasitic wasps in the garden and use Bacillus thuringiensis (biological warfare) for some caterpillar species.

Diseases : Blight

Blights are cause by fungi or bacteria that kill plant tissue. Symptoms often show up as the rapid spotting or wilting of foliage. There are many different blights, specific to various plants, each requiring a varied method of control.

Diseases : Apple Scab

Apple Scab fungus thrives in cool, moist areas and overwinters in infected leaves that have fallen to the ground. In spring, spores infect new leaves, stems, flowers and fruit. If conditions are right (wet and 70 degrees), the fungus can infect the fruit around the bloom in just 6 hours, though visible signs may not be noticed for a couple of weeks.

Infection first appears as a dark green or black irregular patch on leaf surfaces. It is not uncommon for leaves to pucker and become discolored and eventually fall of the tree. Scab on fruit shows up as a brownish patch with a white halo. Older lesions will not have the halo.

Prevention and Control: Plant resistant varieties whenever possible. Remember, resistant does not mean immune. Keep trees properly pruned to promote good air circulation and always rake up and destroy fallen leaves. If you have a known problem from previous years, treat with an appropriate fungicide early on. Follow all directions on the label - make sure the fungicide you select is labelled for use on that plant to control apple scab It is too late to treat if you see scab on fruit and trees.

Fungi : Cedar Apple Rust

Cedar Apple Rust requires two alternate hosts each year: cedar or juniper type plants and apples, crabapples or hawthorn. Between spring and early summer, infected juniper or cedar leaves and stems may swell with greenish-brown galls. By fall, the galls have developed dimples. Though these do no immediate harm to the plant, by the following spring, when weather is wet and warm, the galls swell and develop jelly-like horn protrusions. Spores produced by these horns then infect apple trees. Wind carried spores are capable of infecting trees up to 4 miles away. On apples, cedar apple rust appears as rusty orange spots, having a ring-like appearance. Fruit drop is also common.

Prevention and Control Plant resistant varieties and eliminate hosts from the area. Chinese and Savin Junipers seem to be resistant as are apple varieties Freedom, Liberty, and Priscilla. Always rake-up and destroy diseased or damaged fruit and leaves. There are no chemicals available labeled for home gardener use.

Miscellaneous
Glossary : Naturalizing

Naturalizing refers to planting in a random pattern, much as itwould occur in nature. If you spend any time in the woods, you've probably noticed that plants often grow in groups. The center of the group is dense and towards the edges, plants are located farther apart. Narcissus bulbs are easy to naturalize if you use this method: fill a bucket with bulbs and toss them out. Plant them where they fall. You will notice a portion of the bulbs are close together while the others have scattered farther away.

Glossary : Specimen

A specimen can be a tree, shrub, ground cover, annual, or perennial that is unique in comparison to the surrounding plants. Uniqueness may be in color, form, texture, or size. By using only one specimen plant in a visual area, it can be showcased. Specimen plants are accents in the landscape, just as statues, water features, or arbors.

Glossary : Deciduous

Deciduous refers to those plants that lose their leaves or needles at the end of the growing season.

Glossary : Tree

Tree: a woody perennial with a crown of branches that begin atop a single stem or trunk. The exception to this rule is multi-trunk trees, which some may argue are really very large shrubs.

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