Tag Archives: pruning tips

Early Summer Tips

hydrangeas2 3Some things in the garden need to be planned out in advance while others happen by chance. For instance, this year when our spring rains stopped dead in their tracks I gave up adding any more acidifier to my hydrangeas. You need to change the pH of the soil around hydrangeas well before they set buds. I like mother nature to water for me early in the season and she didn't cooperate.  As luck would have it, the flowers this year are majestic purple, mauve and magenta where before they were sky blue. Frankly, I'm thrilled with this years color palette. Hooray for serendipity.

Early summer is the right time, however, for many other garden activities that you don't want to leave to chance.

Many plants, both vegetable and ornamental, are bothered by aphids and other sucking insects as well as foliage and flower eating bugs
.   From cucumber beetles, flea beetles, stink bugs, weevils, curculios to borers , the list of trouble makers is endless. .  To help deter them mix up some pepper spray in your kitchen.  
    1 tablespoon hot pepper sauce or 1 teaspoon cayenne pepper
    6 cloves garlic, crushed
    1 quart warm tap water
Let stand I hour, strain and spray plants either in the morning or evening.

Apply the second fertilizer application for the year to your citrus and fruit trees. The last one should be immediately after harvest.  Apply the fertilizer to the soil around the drip line of the tree where feeder roots are located and scratch into the surface. Water in well. As with all fertilizers, make sure the trees are moist before you fertilize. Young trees in their first, second or third growing season should receive half the rate of established trees.

If your fruit trees are starting to produce too heavily, remove excess immature fruits.  Doing so allows remaining fruit more room to grow and prevents branches from breaking under the weight.  When apples, pears and stone fruits such as apricots, nectarines, peaches and plums reach 1/2' in diameter, pick some off, leaving the remaining fruits spaces 6-10" apart along the branch.  Later, to protect your ripening fruit, enclose the tree with bird netting,  hang strips of mylar flash tape near brach tips or substitute old CD's.

If you battle dandelions and don't want to use chemical weed killers around pets and children, get out the white vinegar from the cupboard. On a hot sunny day spray straight white vinegar directly on the weed. This method will kill whatever it touches so direct the spray carefully. If the dandelion is in the lawn, wait a week, pour some water on the dead spot to dilute any lasting effects of the vinegar. Then poke a bunch a holes and drop in some grass seed. Sprinkle a bit of fertilizer where the seed is planted and keep the area moist. In three weeks you won't remember where the dead spot was and the dandelion will be long gone.

Another garden to-do this month includes summer pruning of wisteria. To increase flowering next spring and keep these vines under control cut new growth back to within 6" of the main branch. If you want to extend the height or length of the vine, select some of the new streamer-like stems and tie them to a support in the direction you wish to train the plant.

To encourage continued bloom on annuals, perennials and shrubs, remove faded flowers before they start to form seeds.  Make sure you remove the entire flower head and the base where seeds form ( such as the bulbous part of dahlia, petunia or fuchsia flowers) and not just the petals.  Cut the stem down to where leaves start.  The season has just started and you'll be enjoying lots more flowers in the months to come if you deadhead regularly.  
    
Another maintenance tip is to shear spring blooming perennials to keep them full and compact.  Candytuft, phlox subulata, aubrieta and other low growing perennials benefit if you cut off spent bloom and an inch or two of growth.  Other perennials and shrubs that benefit from the same treatment to keep them compact are erysimum, lavender and Pink breath of heaven.

Also re-apply mulch if it's getting thin in spots. Check ties on trees to make sure they aren't cutting into the bark. Cultivate lightly around trees to discourage weeds and allow water to penetrate.

Don't be afraid to move a plant that is not working where its growing now. Make a note in your journal reminding yourself to transplant it sometime in the fall. Gardening is a dynamic and fluid process. Enjoy piecing  together pieces of the puzzle.
 

Fall Garden to-do’s for the Santa Cruz Mountains

Warm days, rainy days, short days, cold days- all in the fall of the year here in the Santa Cruz mountains. It's part of what makes our area so special to us. We are inspired by Mother Nature and our mountains. We feel a connection with nature as we enjoy our gardens. There are some easy things you can do at this time of year to extend that enjoyment. Gardening should be fun, too.

Taking cuttings of shrubs is a relatively easy and economical way to make new plants. Some plants that can be increased by hardwood cuttings include manzanita, coffeeberry, crape myrtle, pittosporum, euonymous, forsythia, spirea, viburnum and roses.  Edible plants like currants, figs, grapes and quinces also make good subjects.  

For deciduous plants it's best to take cuttings soon after the shrub drops leaves and the plant goes dormant. Evergreen shrub cuttings can be taken now. Start by taking cuttings of year old wood that's about a quarter inch in diameter.  Discard the top couple of inches of each stem since this unripened wood doesn't have enough stored nutrients to survive.  Cut the stems into 6-9 inch pieces.  Because a cutting won't grow if planted upside down, make the top cut at a slant, so you can keep track of it.  Then dip the bottom ends in rooting hormone and tap off any excess.  

You can store cuttings from dormant shrubs bundled and labeled in boxes of sand in the garage or outdoors in a well-drained trench. Each will form a callus at the base where roots will form next spring.  Come spring , plant the cuttings in good soil in shade with only the top bud exposed. Water as needed and once the new plants develop leaves and increase in size, start feeding them monthly with a balanced fertilizer. By next fall your new shrubs should be well established and ready to be moved to their permanent place in the landscape.

Some plants like abelia and spice bush are propagated by softwood cuttings in June. You can check the UC Davis website http://rooting,ucdavis.edu for information on specific plants you might be interested in.

Also you can simply pin down a stem of a plant like manzanita by putting a rock on it so the soil makes contact. After a year or so you will have a new plant that you can dig up and move.  Other natives like ceanothus can be propagated in a peat and grit mix and will root in about 50 days if given bottom heat. Take these cuttings in January.

Stake trees.  Trunks with leaning tops or those planted in very windy areas need support.  To determine how high to place ties, move your hand up the trunk until the treetops straightens.  I usually allow the stake to reach up into the canopy a bit so that a wind gust doesn't snap off the trunk right at the base of the canopy.  Tie the tree to the stake loosely in several places.  Trees in containers are tied tightly to the the stake but those in the ground should have some wiggle room to stimulate the trunk to be stronger.  This is a good time to check existing tree stakes to make sure the ties aren't digging into the trunk and the stakes are large enough to support your tree. Remember to keep your tree staked only as long as needed and then remove the supports.

Hummingbirds still need a nectar source.  Don't take down your feeder in the fall.  Anna's hummingbirds live and breed in this area all year long.  They need your nectar more in the winter, when very little is in bloom.  Even a species like the Rufous benefits from access to a large nectar supply to stock up on before a long migration.   Keep your feeders up year-round and keep them clean.  

The recent rains will allow weed seeds to sprout which is just what you want if you're planning a wildflower meadow.  The most common mistake when planting wildflower seeds is not getting rid of the existing weed and grass seeds that are in the soil and will germinate along with the wildflowers. These fast-growing weeds smother the slower growing wildflowers. Take time to eliminate the competition. Get rid of existing weeds when they sprout by cultivating the soil to a depth of not more than 1 inch. Deeper cultivation exposes more weed seeds that will germinate along with the wildflower seeds.

Pick last roses and add alfalfa meal or pellets which will soak into ground and prepare them for next spring. Don't prune until the end of January.
 
Groom strawberries and mulch to deter slugs in winter.

To help protect citrus from frost damage, pull mulch back from below the canopy.  This allows the ground to absorb heat during the day and release it at night.  
 

Tips for Vegetables, Pests and Plants with Bad Behaviors

Summer is officially almost here although we all know it actually starts on Memorial Day weekend. What fun stuff should we be doing in the garden? What problems should I be on the lookout for? What troublemakers should I avoid planting?

June is a busy time for plants. Some are just finishing up early spring flowering like rhododendrons, azaleas. camellias, lilac and wisteria. Prune off spent flowers and shape plants if needed. Other plants are just beginning to flower and would like a dose of organic fertilizer to really perform well.

Plant corn, lettuce and basil continuously to keep a steady supply. Speaking of basil, if yours died recently showing brown spots or streaks up the stem,  fusarium wilt, caused by a fungus, is the culprit. Carried by either the soil that affected basil plants have been grown in or by seed from an infected basil plant it's a common problem. There is no remedy for fusarium wilt. Destroy infected plants and do not plant basil or other mint plants in that area for 2-3 years.

Night time temperatures should be consistently above 50 degrees for basil. As long as you provide it with a hot, sunny location and plenty of water, it's among the easiest of herbs to grow in the garden or in a container. Steady, slow growth is the key to good taste, so amend the soil with compost and forgo the fertilizer. Basil contains the most oils when harvested before the flowers occur. The best way to delay flowering, as well as to encourage branching and new growth, is to harvest regularly by snipping of the end of the branches.

The best time to harvest is midmorning, right after the dew has dried, but before the afternoon sun bakes out the oils. At some point later in the summer, flowering will begin in earnest. Then it's time to harvest the entire crop, as flavor will go downhill soon afterward.

Insects are having a field day at this time of year, too. Put out wet rolled newspaper at night to collect earwigs in the morning. If you see notches on your rose leaves, it's the work of leaf cutter bees. These guys are beneficial and will go away shortly.

If your rose leaves look like lace then you have the dreaded rose slug. I have a friend who's rose shrubs were really hit by these. It's discouraging when you had visions of huge fragrant bouquets on every table. What to do?

The rose slug is actually the larvae of a wasp called a sawfly. Because they may have 6 generations per year they can do a lot of damage to your roses. Early detection is key. Start scouting for sawfly larvae in early May when they can be hand picked or washed from the leaves with a strong spray. If needed, spray the leaves with neem oil while the larvae are still small. Conventional insecticides are toxic to bees and kill the good bugs too.

During the winter they pupate in the soil and removing a couple of inches will help with controlling their numbers. Even cultivating the soil at any time will break up the cocoons.

Finally, think twice before planting rampant growers that are hard to control unless you use a deep edging that will keep them confined where you want. There's nothing wrong with a plant that spreads out in the right places, but let it overgrow that area and it quickly wears out its welcome.

Plants like chameleon plant ( Houttunyia cordata) , lamium, it's close relative lamiastrum and hypericum are  great plants in areas that are not close to your other planting beds. The deceptively delicate looking and impossible to ever get rid of Japanese anemone falls into this category also. To be forewarned is to be forearmed. Plan ahead.

Get out and enjoy your garden. The best way to nip problems in the bud is to walk around your garden with a beverage of some kind and just look.