Category Archives: pruning tips

Pruning Japanese Maples

MId-June and everything in the garden is full and lush. Your Japanese maples might be getting a little too full for your taste-outgrowing its space, crowding the neighbors, looking like a boring blob. Take the fear out of pruning with these easy steps.

Pruning any plant is necessary for several reasons-to control size or shape, to remove dead or diseased branches, to improve structure or to stimulate new growth. Pruning also can improve the health of a plant by increasing air circulation, allowing more light into the center and reducing disease problems.

Japanese maples do not need a lot of pruning. June is the best time of year to prune them as the leaves have become full size. The least favorable time to prune would be early to mid fall just as it is sending nutrients and energy to store for the cold months. Bring out your tree’s personality by symmetrically thinning out about a third of the small twigs throughout  the tree and any dead twigs. Japanese maples less than 15 years old are prone to put on new growth that looks like a buggy whip: unattractively skinny with no side branches. Shortening or removing the buggy whips only stimulates more of the same. Be patient. You will be surprised to find that, as the whips age, they fatten up, develop lateral branches, and turn into nice-looking scaffold limbs. Make sure not to thin to much on the sides of the tree if they are exposed to sunlight as that could cause sunburn. Use the "1/3 rule" when deciding where or how far back to cut a branch – that is prune to an upward or outward growing branch that is at least a third as big as the one you are cutting.

Avoid attempting to restrict the height of a Japanese maple. It won’t work. The tree will simply grow faster with thin, unruly branches. You can reduce the height of the tree a bit by removing branches that grow in an upward direction to a lower branch. The width of these trees, on the other hand, can be somewhat modified. Trim side growth and foliage that is hanging too low by cutting to branches farther back in the tree. It’s time consuming to prune a little, then stand back to decide where the next cut will be, but when you’re finished, your new tree will have an airy, delicate appearance allowing you to see into the tree and admire the

 

It’s Spring – What do I do?

Yes, we need more rain but the recent sunny weather has been good for both people and plants. I remember many years ago when we had "The Miracle March" as a local meteorologist called it. It rained for 30 days straight. This was great for the watershed but drowned new emerging roots, starving them of oxygen and causing lots of fungal problems.  Let’s hope Mother Nature spreads out the remaining precipitation keeping everyone happy.

Spring begins today. This year, especially, think of gardening as therapy.  Every moment you put in your garden is paid back with fresh vegetables and fragrant flowers.  Think about it- stir up the soil, plant some seeds and you have flowers and vegetables in a few months.  The satisfaction you get from cultivating living things is priceless.

Get started on this free therapy by tending to your garden this week:

Plant low water use plants in place of those that have been struggling. Use your precious time, space and sun to grow the plants you most want to look at, pic or eat.  As a reminder, never work with soil that is very wet and keep off your lawn the, too, as this can compact the soil.

Cut back deciduous shrubs and vines except those that flower now in the spring. Don’t prune rhododendrons, camellias, or azaleas until the last flowers have started to open and green growth has started.
Prune frost  damaged shrubs if you can tell how far down the die back goes otherwise wait until growth starts in the spring.  For your shrubs, test bark for viability by scraping with a sharp knife.

If you are interested in being less of a slave to your lawn, consider reducing the size. If you’ve decided that you don’t need a traditional grass lawn anymore at all, replace it with a sustainable alternative.

Check for early aphids and blast them off with a hose or use no-tozic sprays like horticultural oil or insecticidal soap. Check for snails and slug damage and apply organic iron phosphate bait. Earwigs and sowbugs can be controlled by organic spinosad. Reduce their numbers by eliminating hiding places.  Clean out leaf litter and garden debris and use organic iron phosphate bait.  Copper pennies in your containers can also deter them.

Get weeds out of the garden early and you’ll save yourself a lot of digging later. Weeds rob your plants of precious moisture and nutrients.

Plant cool season vegetable like peas, chard, spinach, broccoli, cauliflower, cabbage, lettuce, onions and other greens.  You can also sow seeds of beets and carrots. The soil is still too cold for tomatoes and other warm season vegetables. 

Grow the sweetest strawberries this year by planting them in a bed that receives at least 6 hours of direct sun at midday.  Don’t water too much.  This can dilute their flavor.  You want the soil to be moist but not wet. Don’t apply excess nitrogen fertilizer which causes overly lush growth at the expense of berry production. Also keep beds free of weeds and space each strawberry plant about a foot apart.

Plant a spring flowering tree such as a flowering cherry, dogwood, crabapple or plum or a native western redbud to welcome the new season and make your spirits soar.