Category Archives: gardening tips

What to Do in the Garden in February

Blue Nikko hydrangeaYou know spring is coming when you see daffodils starting to open. You know spring is coming when plum trees begin their glorious show. And you know spring is coming when you begin to think of all those garden tasks that still need your attention.

February is one of those months that ease us into the gardening season. Didn't get the roses pruned at the end of January? There's still time. Didn't dormant spray for fungal diseases and insect control? There's still time. Didn't plant any new berries yet for summer desserts? There's still time – but don't delay much longer.

What is important to do in the garden in February?

Prune fruit trees and smother overwintering eggs and insects by spraying with horticultural oil. Combine your spray with lime-sulfur ( except on apricot trees ) or copper soap to kill fungal disease spores like the ones that cause peach-leaf curl. Spinosad has also been shown to supress fungal diseases. Do this when the buds swell but before they open.

Prune your roses if you haven't already.

Prune repeat flowering roses by removing spindly or diseased shoots and dead wood. Do this before they start leafing out which wastes plant energy. Cut back the remaining stems by about a third, cutting canes at a 45-degree angle just above an outward facing bud. Don't worry whether your pruning job is perfect. Roses are super forgiving and you can trim them up again later. You want to produce lots of roses not just a few of exhibition size. Aim for a vase-shaped  bush with an open center.

Prune old garden roses that bloom once in the spring after flowering. Climbing roses require little pruning. Cut out extra stems if there are too many and also cut back long established canes to about the place where they are slightly thicker than a pencil. Then cut each side stem down to several inches. This will cause the cane to flower along its complete length for a beautiful spring display.

If any old leaves still cling to the plant, remove them. Rake up any debris beneath the plant and discard to eliminate overwintering fungus spores. It's a good idea to spray both the bare plant and the surrounding soil with a combination organic horticultural oil to smother overwintering insect eggs and a dormant spray like lime-sulfur or copper soap to kill fungus spores. If you usually have a problem only with black spot you can use a mixture of 1 teaspoon baking soda with a few drops of light oil in 1 quart water and spraying every 7 to 10 days.  Thoroughly coat the trunk, branches and twigs.

Cut back woody shrubs. To stimulate lush new growth on plants like Mexican bush sage and artemisia to within a few inches of the ground. Don't use this approach on lavender or ceanothus, though. Lightly prune them after blooming and don't cut back to bare wood inside the plant.  Prune fuchsias back by a third and remove dead, crossing branches and interior twiggy growth. Container fuchsias can be cut back to the pot rim.

Cut back hydrangeas stems that bloomed last year if you haven't already done so and apply a soil acidifier if you want the flowers blue. Although sulfur is the traditional favorite for quickly acidifying soil it is not as kind to many beneficial soil microorganisms. Coffee grounds, pine needles, peat moss and cottonseed meal are kinder to your soil.

Don't cut back grasses yet if you get frost in the area where they grow. Wait until mid-March.

Don't prune spring flowering shrubs and trees like lilacs, flowering cherries, plums and crabapples,  rhododendrons, azaleas, camellias, weigela or spirea until after they flower.  You can cut some branches during flowering to bring in cuttings for bouquets.

Wait to prune back perennials that may have their new foliage damaged in a late frost. Same goes for shrubs that got hit by those January frosts. That damaged foliage can protect the plant from further frost damage. Mid-March is the estimated date of hard frost in our area.
 

October Tips for the Santa Cruz Mountains- Squirrels & Cover Crops

Continuing in the spirit of all things fall it's prime time to plant tulips and other spring blooming bulbs, If you're like me and have squirrels scampering up every tree, checking out planting beds and planters for choice acorn planting spots, you are undoubtedly aware of how difficult it is to keep them from digging up and eating the bulbs. Yes you can plant the bulbs surrounded by chicken wire or hardware cloth but there's an easier way that's just as effective.

Dig the hole and plant the bulb as you normally would, but instead of caging it, cover the bulb with poultry grit, which is make up of crushed granite, shale or oyster shells and is available at feed stores. The squirrels don't like trying to dig through the sharp grit and quickly give up.

Next spring if they have the nerve to eat the flower buds right when they emerge from the soil you might just have to plant the types of bulbs that squirrels won't eat such as daffodils, snowdrops, chionodoxa, hyacinth or fritillaria.

It's also time to plant a cover crop in your vegetable garden to improve production next year. Fall cover crops include legumes such as fava beans, peas, vetch and clovers which germinate and grow quickly but not so fast as to harm late season or overwintering vegetable crops. Oat grass can be sown to hold the soil and protect it from erosion.

Cover crops also protect the soil from pounding winter rains which compact the soil surface and leach out nutrients. They are thick enough to choke out emerging weeds and their root systems break up and aerate hard soil. Members of the pea family gather nitrogen into their roots to further benefit the soil.

In the spring you can tun the cover crop into the soil and allow it to decompose in place or pull the plants and compost them separately. That way you can plant right away and add the compost back into the garden later when it has finished decomposing.

Seeds germinate best when the soil is in the 50 degree range so don't delay.
 

Fall Wildflowers & October to-do’s

Above the clear turquoise water of the Big Sur coastline, wildflowers still bloom in October. Bright orange Sticky Monkeyflower meander among a carpet of rosy blooming California Buckwheat. Deep orange California fuchsia flower on hillsides alongside the bright white flower heads of yarrow. They make a striking combination. Under the partial shade of pine trees lavender Seaside Daisy explode with color. Even poison oak contributes deep rusty-red tones to the landscape making it easier to identify and avoid. This wild land offers lessons and ideas to make our own gardens more beautiful.

Big Sur has areas of chaparral, oak and pine woodlands, riparian or streamside woodlands and redwood-tanbark-oak woodlands. Nearly half of all the flora of California grows here and many northern and southern California plants mix in this unique location. . Only in Big Sur will redwoods and yuccas thrive together. The look is startling. Certainly not a combination you would think of for your own garden.

Near McWay Falls on Hwy 1, fragments of an elaborate stone house still remain along with some of the landscaping. Christopher McWay and his wife Rachel settled the area in the late 19th century.The land passed through several owners until former U.S. House of Representative Lathrop Brown and his wife Helen acquired it and built a beautiful stone structure overlooking McWay Cove. The house was torn down 50 years ago but many of the landscape plants still thrive after all these years.  Hardy pittosporum eugenoides have survived without any supplemental watering. A huge stand of blooming Naked Ladies covers the rocky slope. We all know what survivors these bulbs are. Tall Mexican palms and ornamental trees surround the fragments of stone staircases and walls reminding us that nature will endure.

What allows all plants to thrive in their environment is the simple set of conditions that they like. It's nearly impossible to grow ferns in the hot sun around here and don't even think about trying a California fuchsia in the shade. Soil is important, too. Rich, moist soil is perfect for wild ginger but gravelly, well drained soil works best for Five-fingered ferns. Match the right plant with the right spot and you'll have success every time. Big Sur is a chock full of success stories.

Here are more tips for early fall in the garden.

Fall is not a good time for major pruning.  Wounds heal slowly, leaving them more susceptible to disease.  As a general rule, don't prune when leaves are falling or forming.  Wait to prune most trees until late in the dormant season or in late spring after leaves and needles form.  To avoid sap flow on birches and maples, prune after leaves mature.  

Do refresh perennials, such as butterfly bush, salvia and yarrow by cutting a third to half of their growth.

Rake leaves– compost or put in your green can. If large leaves are left in place they will mat down and set up fungal problems come spring.