Tuesday, October 30, 2012

Which Trees Provide the Best Shade?

Trees can be broken down into three main parts: the roots, the leaves and the woody structure between them.

The roots' function is to bring raw materials water and mineral salt dissolved in water to the tree.
The leaves absorb carbon dioxide from the air and use the sun's light energy to combine this gas with the moisture from the roots, thus making the simple sugars which are the basic nutrients of the tree.

The trunk, limbs, branches and twigs hold the leaves in position to receive the life-giving sunlight and air; they also act as transportation, carrying raw materials between roots and leaves.

The materials absorbed by the roots are pulled up by capillary attraction and the osmotic action induced by evaporation of water from the leaves.

Loss of water through the leaves is called transpiration. On a summer day, a single birch tree may transpire 700 to 900 gallons of water. It is this enormous flow of water that causes a continuous flow of sap from the roots to the topmost twigs.

 In planting or transplanting a tree, and in building on a lot where you wish to preserve the trees, the gardener's chief consideration must be to protect the root structure of the tree.

 The big roots near the stem anchor the tree to the ground, while the fine root hairs at the ends of the rootlets absorb the water from the soil.

The stem or trunk of a tree has three parts: the bark, the wood and the pith. The pith is the central part and around it is the wood. Between wood and bark is the cambium, a thin layer that produces new wood and bark.

When the cambium ring is severed, as by a wire cable, the tree is killed, and since the cambium protects against insects and disease, anything driven into it can wound the tree severely. Outside of man himself, trees have countless enemies.

There are 200,000 known kinds of insects that attack trees, in addition to diseases such as blight, rust and rot, storms and droughts. Luckily, birds help to keep caterpillars, borers, beetles and other insects in check.

Here is a quick reference guide to the best trees for shade and background:

 Type
 Description 

American Beech 
Beautiful tree with edible nut. Long-lived and relatively free from insect and fungal diseases.
For accent planting. May be clipped, as hedge, for formal settings

American Elm
Very tall, with attractive vase form. Early bloom. Excellent for shade but widely disappearing because of Dutch elm disease, (pulvem necrosis)

American Linden
 Tall tree. Provides dense shade. It has fragrant yellowish flowers. Prefers a moderately moist soil.

Chinese Elm
Medium height. Small dense foliage. A rapid grower, excellent for screening or windbreak. A wide spreading tree with slender limbs. Makes good shade in five years.

Hackberry 
Usually a small tree, but with a wide spread. Has cherry-like fruit lasting late in winter. Survives drought, hardy in the cities.

Moraine Locust 
Majestic tree. Hardy to cold. Survives drought and flooding, smoke and soot. Lawns flourish under it since it is late in leafing, has no seeds to clutter lawn. Fast growing.

Norway Maple
Trees of medium height. Most widely planted street and lawn tree. Dense growth. Symmetrical. Orderly habits free of insects and disease. Leaves turn bright yellow in fall.

Pin Oak
Remove lower branches if used for lawn tree. Least threatened by disease of all shade trees. Not good in alkali soil. Makes good windbreak. Symmetrical and pyramidal in shape with clean, glossy leaves. Turns scarlet in fall.

Red Oak
Rapid-growing tree with rounded head. A large tree appropriate for large lawns. Has glossy, deep-cut green foliage, which turns deep red in fall.

Silver Maple 
Most rapid growing of all maples. A large spreading tree. Well-cut leaf with a silvery cast and silvery bark. Good sap for sugar making. Early blooming.

Sugar Maple
Grows well in any soil. Ideal for street planting as it grows straight and tall and gives good shade. Turns beautiful orange and scarlet in the fall. Source of maple sugar.

White Clump Birch 
In natural setting or as lawn specimen, this multiple-stemmed tree is effective. White bark. Upright growth with horizontal branches.

Sunday, October 28, 2012

Tips For Cutting Fresh Flowers

Okay, so you’re going to bring your grocery store or florist bought flowers home, now what! I have seen many people just plunk them in a vase of water and that's it.

Sometimes that works but here are some simple tips to make you look like you're a pro at it.

 1) In a clean vase, take your greens first, snip the ends off to the size you want and then start criss crossing the stems into the vase so that you have stems all around inside the vase.

There are two reasons for this. One is because you now have a base for the flower arrangement and two; a criss cross of stems makes it easier for flower placement.

 2) If you are making a small, low arrangement, slide in the flowers in a criss cross so that the stems are all around the inside of the vase. You should now have a vase with a ring of flowers on the out side and nothing but stems showing in the middle. (The more stems you have in the vase, the easier it will be to have flowers stay put!)

The rows of flowers are going to be higher each time you get them in until you have a nice rounded arrangement.

 3) If you are making a tall arrangement, then use a tall slim vase. Your flowers will hold up better and it will look well proportioned. Great flowers to use are gladiolas, blue delphinium, lilies, snapdragons etc. Sometimes you can get tall tulips and that looks fantastic too.

 4) A design mistake I have often seen is placing the flowers in a vase perfectly even. The reason this does not work is because it looks unnatural.

Have a look at any garden and you will see some of the blooms are sticking out, some are tucked in; some are almost hidden but still contribute to the overall look. Mimic nature and you won't go wrong! Don't be afraid to tuck some of those flowers in a bit.

5) A good rule of thumb is to use odd numbers of flowers. What I mean by that is to use 3 roses together or 5. Even numbers are not as effective. If you use 5 roses for example, Place 3 together (touching but at slightly different lengths) near the bottom center of the vase and then two more higher up.

 6) The next best advice I can give you if you are really new at floral design, is to collect pictures of floral arrangements you like and with the tips I've stated above, practice while looking at the pictures.

Before long, you'll be looking like a pro!

Tuesday, October 16, 2012

Tips For Growing Tulips

As the curtain of winter lifts, tulips are one of the first flowers to take the spring stage. As the last drifts of snow seep into the soil, these bright signs of spring dance in the sunlight.

However, you don't have to wait for spring to grow tulips. Whether it lies in a bed, under a shrub, in the crevices of a rock garden or in a container, a tulip bulb is an underground flower factory just waiting to spring up from whatever soil it occupies.

The whole purpose of a tulip bulb is to flower. In fact, in the center of each bulb, tiny leaves cradle a baby bud. The white, onion-like bulb that surrounds the bud stores all the nutrients that the bud needs to sprout and grow. The only real help the tulip needs to grow is a generous drink of water and some soil to keep it moist.

Selecting Cultivars When selecting bulbs, a simple rule of thumb is that the bigger the bulb, the bigger the flower. Choose plump bulbs that are firm and heavy for their size.

Although the tunic (outer papery skin) need not be intact, avoid bulbs that are withered, overly dry, scarred, and have traces of mold, soft spots, or other blemishes.

However, more difficult than selecting bulbs is first choosing from the over 100 varieties of tulips which are divided into 15 divisions. Careful selection from different divisions can help you plan a tulip garden that begins in early spring and dances on through the end of May!

1. Single Early Short-stemmed tulips (usually about 8-inches high) that flower in late March and early April.

2. Double Early A profusion of petals on 12 to 15 inch stems makes an attractive display when these bulbs are forced indoors. Although they usually bloom from early to mid-April, they are more delicate than some other cultivars and need protection from cold and inclement weather.

3. Triumph A standard since 1923 when they were named by Dutch breeder, N. Zandbergen, these tulips take the throne at the end of April as they tower to 18 inches high.

4. Darwin Hybrids One of the tallest garden tulips (usually over 2-feet tall) these red and yellow beauties are perfect for naturalizing and are those you generally see returning in established gardens May after May.

5. Single Late Originally known as Cottage tulips, these hybrids inter-mingled and successfully merged with Darwin hybrids. Like the Darwins, they grow well over 2-feet tall and bloom in May.

6. Lily-Flowered Another May-flowering tulip, this group was originally grouped with Cottage tulips but was reclassified in 1958. On stems that grow from 1 to 2-feet tall, long, shapely flowers have pointed petals that most closely resemble native Turkish tulips and boast the first scented tulip, the Ballerina, in their troupe.

7. Fringed A short (12 to 18 inches) but showy group of tulips that brightens the May garden with ruffles that either mirror or add a contrasting color to the rest of the bloom.

8. Viridiflora May blooms with a flash of green streaked through their petals, this group of tulips varies from one to two-feet tall.

9. Rembrandt Once highly prized by gardeners, today these tulips are nearly obsolete. Although streaked with beautiful breaks and stripes of artistic color, it was discovered that this palette was created by a virus that could spread to other tulip cultivars. Although some suppliers still offer the Rembrandt, these tulips are no longer commercially grown and advertised types are generally no relation to the true Rembrandt cultivars.

10. Parrot A riot of petals that curl in all directions, these blooms look like they could use some preening. However, they aren't named for their resemblance to feathers, but rather for the bud that resembles a parrots beak. A few of these May-blooming cultivars are scented. They generally grow from 16 to 24 inches tall.

11. Double Late (Peony Flowered) Although less resistant to poor weather, peony flowered cultivars are another excellent choice for container tulip growing. From mid to late May, these tall (1 to 2-feet) blooms bear a profusion of petals in close resemblance to their namesake.

12. Kaufmanniana If you have difficulty in pronouncing the name of this group, you can also call its cultivars water lily tulips. Opening flat under the mid-March sun, the foliage of these flowers is characterized by deep purple or brown blotches. Shorter than some other cultivars, the Kaufmanniana is only 6 to 12 inches high.

13. Fosteriana Greigii crossed with Kaufmanniana fostered this division. From 8 to 18 inches tall, these tulips add drama to the April garden with foliage that ranges from grey-green to glossy green.

14. Greigii Another short (8 to 12 inches) addition to the early spring garden (late March to early April), striking wavy edged foliage provides a perfect backdrop for an eruption of upright blooms that stand amidst a frame of flared-out petals.

15. Species The last and the least? This group is truly the dwarf (4 to 12 inches) of the tulip family. However, they're easy to naturalize and their cheery blooms repeat year after year anytime from March to May, some varieties even seeding themselves freely!

They are definite proof that good things come in small packages! Planting the tulip Bulbs Although grown in Holland since the late 16th Century, tulips are native to the mountains of Turkey.

There, the winters are cold, the spring rains are plentiful and they have cold winters, plenty of water in the spring, and the rest of the year is well hot!

Tulips need the warmth of summer sun to ripen next years flower buds. However, they need the cold of winter to rest for their lively emergence in spring. Generally, unplanted bulbs are difficult to keep over winter.

Once evening temperatures dip to 50F, its time to put them in the ground. Fall is also the best time to nourish your tulips. Before you begin planting bulbs, work nutrient rich compost through your soil. Although bulbs will grow in nearly any type of soil, the richer your soil is, the bigger your bulb lift will be next summer.

Good drainage is another crucial factor in keeping bulbs healthy. Plant bulbs two to three times their height. For compact displays, plant them closely together, but not touching.

The root side of a bulb is the more rounded side; the pointed side is the part that will open and sprout foliage and flower. Container Tulip Tips Choose container size according to the height of your cultivar and the density of your bulb planting. Plant bulbs the same as you would garden grown-tulips, making sure there is at least inch of soil below the planting.

Plant tulips for indoor forcing in September and October. Place pots in a cool garden spot (outdoors) and cover them with an inch of clean soil. When top growth is about -inch to 1-inch, transfer them indoors to a darkened area with a maximum temperature of 60F.

Let the stems lengthen for about three weeks and return them to a lighted area with a slightly higher temperature. Use fresh soil-based potting mixtures only. Peat based mixtures may burn the roots of your bulbs and soil less mixtures dry too quickly.

If putting containers outdoors, protect them from severe frosts particularly when combined with penetrating winds.

Store them in a cool area like your garage or wrap with sacking or straw and cover them with plastic bags until the weather is more tulip-friendly. It is essential to keep tulip containers sufficiently watered.

Unlike garden grown plants, those in containers cannot seek for water deeper within their environment. Dry pots result in stunted and shriveled flower heads. Tulip Care When tulips are done flowering, either snip the stem or deadhead the bloom. However, let the leaves die naturally.

This is the time the bulb absorbs the nutrients it needs for next years growth. When the foliage becomes discolored, remove it to prevent tulip fire, which can poison your soil. This is also a good time to lift any tulip bulbs that you want to remove from your garden.

Lifting bulbs isn't any more complex than digging them out of the ground or dumping them out of the pot. Usually each bloom produces one good-sized bulb and two smaller offshoots that can be discarded.

Allow lifted bulbs to dry naturally. Then store them somewhere cool in an airy container (net produce bags and burlap bags work well) to provide good circulation until next planting time.

Tulip Problems When tulips produce foliage but no flowers, the most probable cause is damage caused by slugs or snails. Although liquid slug killers are available from most garden centers, most of them are toxic to beneficial organisms and insects in your garden as well as your pets and your family.

The easiest way to deter slugs from invading your tulips is to create a barrier of lava rock or diatomaceous earth around your tulips. Both have sharp edges that kill invading pests by cutting into their skin and causing them to dry up. Another effective way to control slugs is with beer traps.

Partially filled cans buried up to the lip will attract and drown slugs.