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Content:
  • Autumn Olive
  • Botanical Description
  • Trees and Shrubs
  • A simple guide to identifying British trees
  • Olive Tree Pests & Diseases
  • Searsia lucida
  • How to Grow and Care for Olive Trees
  • Fruit Trees
  • Colorado’s Major Tree Species
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Autumn Olive

JavaScript seems to be disabled in your browser. You must have JavaScript enabled in your browser to utilize the functionality of this website. Citrus trees are relatively easy to grow and with the proper care, you can have Citrus trees with beautiful blossoms and luscious fruit that will last for decades.

Caring for your citrus tree starts as soon as you remove them from your box. Please remember that if your tree came planted in a pot, you should leave it in the pot for at least 2 weeks to minimize shock. Remove the tree from the plastic bag wrapped around the pot, water it and place it in a "partially" sunny location for at least a week, before you attempt to place the tree in the full sun.

After one week you can then place the tree in full sun IF it is not in shock. Tree care is based on a 4 point system 1. In the northern regions of the US, this can be a little more problematic, in the winter months in this case you can supplement with a plant grow bulb in addition to sunshine. It is critical that your tree is given the hours of daily sunshine, this is a requirement for a healthy productive tree. The majority of plant demise is due to over watering, it is detrimental and should be avoided.

A simple inexpensive moisture meter can prevent an overzealous gardener. Watering your trees for a few minutes every few days is NOT acceptable.

Nitrogen deficiency is one of the leading causes of yellow leaves. Citrus trees are heavy nitrogen feeders. Fruiting trees remove nitrogen from the soil and convert it into fruit. The first number of any fertilizer is nitrogen and it should be double the other two numbers. Citrus should be fertilized in Mid- February, through mid-September. If you live in the south and your tree is planted outside do not fertilize after mid-September because that encourages the tree to start new tender growth during the winter when there is a danger of frost.

It is imperative that you protect your investment, a little prevention goes a long way. It is vital that you educated yourself on hazards that could cause undue stress or extreme danger to your citrus tree. Water can be frigid in the winter coming out of the tap, so be mindful of the water temperature before watering The root area of the pot is just as important as the foliage of the tree, and if the root area gets too cold, the tree will begin to drop its leaves.

During the day it helps if the pot is elevated to the window, so the pot also receives warmth from the sunshine. Also in the summer if you use a garden hose to water your tree DO NOT make the mistake of leaving water in the hose, the water left in a garden hose can get very hot in the summer, cooking in the sun. Make sure you always empty your hose and get fresh water in the hose, before you water the trees. Green leaf drop is a problem when trees are inside for the winter.

Lighting is usually the issue when green leaves drop off an otherwise healthy tree. You should be familiar with the graft area of your tree, and not allow growth below the graft area, as this will eventually take over and kill your tree. The lighter part of the branch V-shaped is the grafted area. Any growth below the graft needs to be removed. The whiter branch near the graft is fine, it is only the branch that sprouted BELOW the graft that is a concern. First, take a wide piece of masking tape or tangle guard, long enough to wrap around the tree.

Tape barrier Tape the tree with wide masking tape. It is essential to make sure that the tree is completely wrapped. Then you'll need to wrap the support stick separately or remove the stick. Once the tree trunk and support stick are wrapped, you can add tanglefoot to the tape. Only the width of wide masking tape is needed, to prevent access.

When changing the tape, wash the area that had the tape to remove the sticky glue that was on the tape and then place the tape in a different area of the truck. This barrier will catch ants and prevent them from gaining access to the foliage of the trees. Since your tree is a good food source of honeydew. REMEMBER- Check tape when you water your tree, to make sure ants haven't built a bridge across your barrier and do not push the tree against a wall or railing or other plants, as insects would just climb them to gain access to the foliage of the trees.

Taping the tree will also help prevent spider-mites and snails from gaining access to the tree. But it is essential to know spider-mites can get blown through the air on a windy day. Other preventives that you could consider using are essential oils, such as tea tree, eucalyptus, peppermint or wintergreen one dropper mixed with water in a spray bottle.

Do not spray theses directly on your tree, use these to spray the outside of the pot and surrounding area to deter pests.

Neem oil can be sprayed on your tree and is an excellent deterrent against pests. If your tree is infested with anything you must wash your tree with Dawn dish soap and warm water, scrubbing with a dishcloth. Make sure the top side and underside of leaves are entirely washed and scrubbed of sooty mold and cleansed of any sticky substance.

You can use a toothbrush in hard to reach areas, such as a crevice at the Y part of a branch. Treat the tree once it is clean with a horticultural oil or neem oil. These will be listed further in this article. Ants Ants form symbiotic relationships with a variety of arthropods including scale insects, mealybugs, cottony cushion scales, whiteflies, and aphids.

Ants are a lot like humans, they domesticate other insects like humans domesticate cattle. Ants will carry these insects up the tree and drop them onto foliage and branches.

These insects use sharp mouthparts to pierce into plants extracting the sugary goodies. Then the ants will walk up and tap scale or an aphid with a foreleg or antennae and on cue, the scale or aphid will give up a droplet of honeydew.

Ants drive off a host of potential predators of the scale and aphids and so for payment for this ants protect their flocks and for this protection, ants are rewarded with honeydew. Ants move their herds of bugs from "pasture to pasture" as each food source is used up. Ants are like a cattle rancher moving his herd from pasture to pasture. Protecting your tree from ants is essential.

If at any point you notice that your potted tree has become infested with a colony of ants, making themselves at home in the soil of the pot, then it is an emergency. You must kill the colony! Set the lid with this mixture close to your pot, about feet away from your potted tree. If you mix too much of the borax, it will kill the ants immediately, and they will not have a chance to take it back to the colony, killing all the ants in the colony.

So be sure you don't mix it too strong. If you notice a lot of dead ants near your mixture, then the mixture is too strong. The picture clearly shows bumpy beige like waxy growth. These are insects that suck sap from plants and produce a sticky substance called honeydew. Honeydew if left on the tree will then turn to black sooty mold. HONEYDEW Leaves saturated with honeydew, dripping from a leaf, this will cause fruit flies to be attracted to your tree and can be a warning sign that the tree is in distress.

Also, spider mites and a web to the right of the main leaf. Honeydew, if not removed will turn to black sooty mold and will become prevalent on leaves, twigs, and branches. As the branches, twigs, and leaves turn black, the mold will reduce the trees' ability to conduct photosynthesis.

All that applies to the scale also applies to many other insects and how they affect your Citrus tree such as Aphids, Spider mites, Mealybugs, Citrus Thrips. Aphids crawling on a branch Aphids on the under-side of a leaf, with larvae and eggs. They suck the nutrients of the plants and leave them to die. Webs on your citrus will indicate a spider-mite infestation.

Over-watering can create a perfect environment for Fungus Gnats that eat at the root system of the tree and will eventually kill your Citrus tree. A moisture meter will prevent this from happening. Leaf miner is identified by squiggly lines in the leaves. Treatment: spinosad to treat the adult insects. Small orange-yellow insects whose feeding activities scar and damage the surface of the fruit.

The insects feed on the fruit buds and puncture the epidermal cells, leaving scabby, grayish or silvery scars on the rind. Do not allow dead foliage to build up inside the pot as this could fill up pretty quickly with snails and slugs.

It is essential to have a barrier between the soil and the foliage to prevent slugs from climbing up the tree and eating the foliage and fruit. Egg clusters or whitefly larvae will be present on the undersides of infested leaves. Remove larvae or nymph-infested leaves from your citrus tree by hand and treat the tree with neem oil.

They usually are not harmful to the tree unless the tree is young. One of the first signs that a citrus tree may be suffering from root rot is that the fruit has blemishes or decaying or yellowish-brown spots. A fungus or root rot can cause citrus leaves to become moldy or have blackened veins or black lesions. Root rot causes a slow decline of the tree so it is imperative you have adequate soil drainage and avoid overwatering. As root rot advances, the bark cracks and dies leaving dark sunken cankers on the tree trunk.

Prevent any problems before they start, use Copper fungicide which is effective if used regularly to prevent many of the common fungus problems known to citrus. Overwatering your tree will cause yellow leaves if your Citrus has yellow leaves but you know you are not overwatering then your tree has a Nitrogen deficiency. Growth is reduced when the supply of Phosphorus is too low and the symptoms appear first on older leaves.

Symptoms: Small leaves that may take on a reddish-purple tint. Leaf tips can look burnt and older leaves become almost black. A research project has found phosphorus deficiency to be a contributor to citrus greening disease symptoms.

By applying phosphorus, growers could potentially eliminate greening symptoms and improve fruit yield.


Botanical Description

Notable for its shiny green bark, striped silvery white. Spring foliage is tinted bronze. Green summer leaves change to bright yellow, red orange and purple shades in autumn. Saccharinum A naturally occurring hybrid which makes a large tree.

oleaster, also called Russian olive, or trebizond date (species Elaeagnus dark green leaves of the European beech turn red-brown in autumn and.

Trees and Shrubs

It is a very cold hardy,slow-growing, and spreading tree with open dark green foliage. Tree is also considered thorn-less. Fruit is easy peeling and has few to no seeds and is actually considered a seedless fruit. It has a very attractive variegation on both foliage and fruit. Fruit is medium in size with pink flesh. Very easy to peel considered seedless with no thorns. Tree size is medium to large in size with a round top and has a drooping habit. The fruit is large, flavorful, considered seedless, and appears to hold well on the tree. The fruit is also known to section and peel easily. The fruit is known for its red flesh.

A simple guide to identifying British trees

Faidherbia is the ideal tree to intercrop with cereal crops like maize, sorghum, and millet. In Zambia for example, maize yields were 3 tonnes per hectare under Faidherbia canopies and only 2 tonnes per ha. Also, the tree is able to take nitrogen, an essential fertiliser, out of the atmosphere through bacteria that grows on its roots. Where this tree grows spontaneously, farmers protect the seedlings that naturally emerge. This is a system promoted by Self Help Africa in all projects — known as Farmer Managed Natural Regeneration FMNR , where farmers are trained and supported in managing their resources to maintain and improve their land, farms and livelihoods.

We are closed between 25th Dec - 1st Jan but online orders and enquiries can still be made. Keeping Olive Trees is straight forward most of the time, however, like most plants they can be affected by pests and diseases.

Olive Tree Pests & Diseases

Florida Privet is a to foot-tall shrub or small tree that is densely foliated with small, evergreen leaves. The dark, glossy green leaves are oblong to elliptic in shape and are sometimes shed in the winter. The form commonly found in south Florida Dade County has a much smaller leaf than those from other parts of the state. The bark of the younger trees is light brown or gray, and older specimens have a pale yellow bark that is mottled with light brown and green. The bark of the older trees is also roughened by many small, raised lenticels. Bees are attracted to the tiny, corolla-less flowers that have greenish yellow or reddish purple stamens.

Searsia lucida

Traveling across the state, you soon discover that Oregon is home to a wide range of trees. There are 30 native coniferous species and 37 native species of broadleaf trees. Oregon varies greatly in terms of elevation, temperature, wind, rainfall and soil composition. Combinations of all these factors help determine the dominant tree species of an area. The African conifer As the common name indicates, this tree is native to the Atlas Mountains of North Africa and is one of our few representatives from that continent. Range It is typically cultivated as an ornamental tree in temperate climates of Oregon because it is more tolerant of dry and hot conditions than most conifers. Character This distinctive evergreen has silver blue-green needles.

leaf, flower, fruit, twig, and bark characteristics, the general habitat in which the Bark: Trunk gray to brown, inner bark reddish, and on older trees.

How to Grow and Care for Olive Trees

But not But not all of the attractive ruby-colored fruit is safe for us to eat. The birds might take advantage of them all, but remember that birds have very different digestive tracts than humans, and can happily eat berries that would leave us writhing in pain and vomiting.

Fruit Trees

Autumn olive is a deciduous shrub that can grow to 20 ft. The stems, buds and leaves have a dense covering of silvery to rusty scales. Leaves are alternate, egg or lance-shaped, smooth margined, dull green above and often with brown scales beneath. Autumn olive flowers in June and July. The densely clustered blossoms are aromatic, pale yellow, and fused at the base with 4 petals pointed at the tips.

Fruit: Shiny light brown, cylindrical cones; 2 to 4 inches long with thin, long, flexible and irregularly toothed scales; contains paired, long-winged seeds. Habitat: Well-drained, sandy soils; moist sites of narrow bottomlands or along mountains streams; often in pure stands.

Colorado’s Major Tree Species

We link to vendors to help you find relevant products. If you buy from one of our links, we may earn a commission. Anyway, are you settled in your new home, or already based in an ideal location? Olive trees are evergreen and can grow to feet tall, with a spread just as wide. Their oblong leaves are silverish and grow from branches emanating from a gnarled, twisted trunk. Some experts believe that more space between trees — about feet — will yield better fruit production. The type of tree you select will depend on what you hope to get out of it.

Humans have been growing, harvesting, and enjoying olives for thousands of years. We value them not only for their fruits but the oil they produce, too. However, not all olive trees bear fruit. The so-called "fruitless" olive trees are sterile, They do flower and are quite ornamental but few if any viable fruits are produced.



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