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hedges

Mixed Hedges for the Santa Cruz Mtns

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I hear it all too often, "My new neighbor just cut down all the trees and shrubs between our properties and now they can see right into out house. What can I plant? "   Sometimes, the problem is a road or water tank that needs screening.  Maybe you want a well-planned hedge that will also offer needed food and shelter for wildlife and of course, you’d like it to be super low maintenance. Whatever your goal, hedgerows, as the English call them, are endlessly variable. If you’re planning a living fence of contrasting colors and textures, consider these factors.

Many people only think of plants that remain evergreen when they need screening. However, if you use one-third deciduous plants to two-thirds evergreens they will weave together and you won’t be able to tell where one leaves off and another begins. This makes mature hedges secure borders, especially if you throw a few barberries or other prickly plant into the mix.  You’ll also get seasonal interest with fall color and berries for wildlife. 

Pittosporum, photinia and English laurel make great screens and hedges but what other plants can you use that would be beautiful, productive and practical in all seasons?

Many times a screen may start in the sun but end up in mostly shade. For your sunnier spots why not mix in a few dwarf fruit tree for you to enjoy,  ceanothus and Pacific wax myrtle for the birds, barberry for beautiful foliage and fall color, spirea, rockrose, escallonia and quince for their bright flowers and fragrant lilacs for cutting in the spring?  The shadier side can include Oregon grape for fragrant, yellow winter flowers, snowberry for those striking white berries in the fall,  bush anemone, oak-leaf hydrangea, viburnum and native mock orange or philadelphus lewisii for blossoms in the spring.

To keep down maintenance, mulch around your plants and install drip irrigation. there won’t be any pruning to do if you choose plants that grow to the height you want. Mixed hedges appeal to bees, butterflies and songbirds while also providing flowers, berries and color throughout the year for you to enjoy.

How close should you plant a mixed hedge? If you want a quick, thick screen space plane 2-4 feet apart. This gives them room to breathe and develop their own shapes. Fast growing plants can be space 4-5 feet apart and will usually full in within 5 years.

Provide the for the fastest results. By this I mean amending the soil at planting time, mulching, fertilizing several times a year and watering deeply when needed especially during the first three years after planting when young plants put on a lot of growth. Formal hedges are fine for some gardens but think of all the added benefits you’ll get planting a mixed hedge.

flowering shrubs, hedges, landscape design

Hedges

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In writing one of my weekly columns for www.pressbanner.com/, I researched problems that occur with hedges and thought it would be interesting to share this info here:

To care for your hedge. Hedge plants should be pruned back by about a third when they are first set out. The second year, trim the hedge lightly to keep it dense as it grows. Don’t try to achieve the hedge height you want too quickly. Keep shearing lightly to keep the hedge thick without gaps as it grows to the desired height.

Once the hedge is as tall as you want it, your pruning technique should change.

Small leafed hedges should be sheared lightly whenever they look ragged. You can, if you want, simply allow the shrub to retain its natural shape. If you do shear, cut out farther than you cut last time to avoid bare spots and clusters of cut branches.

Large leafed hedges should be pruned one branch at a time with hand shears. Make your cuts inside the layer of foliage so that they will be hidden, leaving only fresh, uncut leaves on the surface. To avoid hedges with bare leafless bottoms shape your hedge so that the top is narrower than the bottom, letting light to the whole side. Leaves that do not get enough light will drop. Lack of water and nutrients can also cause this. This is especially important on the northern side or on any portion of the hedge that is in the shade of a tree. If your hedge has become bare at the bottom you can cut it back heavily in the spring to stimulate new growth at the bottom, then shape it properly as it regrows. Some shrubs,. however can be killed buy cutting them back too far. If you don’t know how a shrub will respond to a radical pruning, head one branch back to a leafless stub to see how it responds. If the stub sprouts new growth, the shrub can probably be safely cut back.

Hedges that have grown too tall and floppy have usually been allowed to grow too fast. Regular pruning encourages a sturdy structure and will strengthen a mass of wispy stems. Bare spots in a hedge are caused by old age and repeated shearing without allowing the hedge to grow. The problem can be alleviated by cutting away dead twigs, branch by branch and then shearing outside the last cut next time you prune.