Tag Archives: landscape design

Favorite Plants of Landscape Designers

Big surprise. Many of my friends are also landscape designers. We get together to talk plants, garden design challenges and plant problems while enjoying good food along with a little wine thrown in for good measure. Recently we met in Corralitos to exchange favorite go-to plant ideas and tour the truly fabulous garden of our host. Filled with interesting foliage and texture as well as plants that flower over a long season we all came away excited to use them in our next design. Maybe some of these ideas will work in your own garden.

Fremontodendron californicum

Every interesting garden has good bones. A successful one has a focal point, garden rooms with “walls” and a “ceiling”, plants with different textures and foliage color, repetition and unity. My friend’s garden is no exception.

Rivaling for our attention from the breathtaking view of Monterey bay, a fremontodendron, in full bloom, was a real show stopper. This California native shrub requires little irrigation and provided the perfect backdrop to the entry garden.

Loropetalum / Agave ‘Blue Glow’

Other plants that brought this garden to life included a stunning Blue Glow agave paired with the burgundy foliage of loropetalum rubrum. Both have low water needs and aren’t attractive to deer.

Eggs and bacon plant

A small recirculating fountain tucked within a pocket garden provided an inviting lure for songbirds. Surrounded by the unique lotus corniculatus or eggs and bacon plant along with a tropical-looking melianthus major aka honey bush this garden room invited one to stick around for awhile.

We garden designers were impressed with the size and vigor of acacia ‘Cousin Itt’. This lovely small plant with emerald green, feathery foliage stays small in the garden and has low water needs. Not to be confused with the bully acacia tree seen around here, it’s one of the good guys. Plant in full sun to partial shade.

Euphorbia wulfennii

In deer country you can’t go wrong with euphorbia characias wulfenii ‘Bruce’s Dwarf’. It does an excellent job of seeding itself so beware. Grow it where it can self sow and not become a problem child. Very hardy in winter and water sparingly. In spring and summer the flower heads form at the branch tips covering the plant with a chartreuse color.

A French hybrid lilac called Pocahontas scented the air as we exchanged our favorite plants that pull a garden together. The winners included hardy geraniums like Biokovo and Karmina and California native heuchera maxima. Canyon Snow Pacific coast iris also got a lot of votes. Groundcover sedum ‘Angelina’ and lime thyme garnered support also.

Abelia ’Kaleidescope’ and ‘Confetti’ got the nod from several of us. Also high on the list of favorite plants, the variegated gold and green cistus was used by many because of its low, mounding habit that hugs the ground and provides a bright evergreen accent to a sunny garden.

So if you’re in the mood to add a couple of interesting plants to your garden, take a tip from what landscape designers use or grow in their own gardens.

When Rainfall Causes Problems

If you were waiting for some rain before planting to control erosion wait no more. That last storm brought plenty of the wet stuff and the next round is hopefully not far off. You’ve gotten a reminder of those areas that need stabilization during the rainy season.

Fall is the perfect time to start planning and planting. The nights are cooler, the days shorter and the soil still warm. Everything that a new plant needs to get a good start.

hillside_june2016
Steep hillside at author’s house covered with erosion control plantings

Using the right plants on hillsides can help slow, spread runoff and prevent soil erosion. Often they need to adapt to shallow, poor soil and cope with less than ideal conditions all while putting down dense, strong roots. Mulch also protects soil from direct rain impact and slows runoff across bare soils. This is important while new plants are growing in. Covering the steepest slopes with jute netting through which plants may be installed is an added precaution.

What plants are good for controlling erosion in our area? When choosing plants to cover a bank for erosion control, assess the conditions of the area you want to plant. Is it in the sun or shade? Is it a naturally moist area or dry? Do you intend to water it or go with our natural cycle of wet in the winter and dry in the summer? Matching the plant to the site conditions will ensure success. California natives are well suited to this job.

If the area you need to stabilize is large and mostly shade, consider ribes viburnifolium or Evergreen Currant. Like mahonia repens or Creeping Mahonia it needs no irrigation when established. Another native, the Common or Creeping Snowberry can also hold the soil on steep banks, spreading by underground stems that stabilize the soil.

A bank in the sun would contain a different plant palette. Common native shrubs for sun include ceanothus groundcover types such as ‘Centennial’, ‘Anchor Bay’ and maritimus that are not attractive to deer like the larger leaved varieties. Manzanita are also excellent at controlling erosion.

philadelphus_felton_covered_bridge
Western mock orange aka philadelphus lewisii

Some other good California native shrubs for erosion control are Western redbud, mountain mahogany, Western mock orange, lemonade berry, toyon, bush poppy, matilija poppy. spicebush, pink flowering currant and Western elderberry.

Smaller natives that put down deep roots are yarrow, coast aster, California fuchsia, wild grape, mimulus, buckwheat, wild rose, sage, deer and needle grass, Pacific Coast iris, penstemon, artemisia and salvia.

Remember when setting plants on a steep slope to arrange them in staggered

OLYMPUS DIGITAL CAMERA
California fuchsia

rows. Make an individual terrace for each plant and create a basin or low spot behind each one ( not around the stem ) to catch water. Set the crowns of the plants high so they won’t become saturated and rot after watering and make sure mulch does not build up around the stem.

These suggestions are just a few of the plants that control erosion. Every area is different and every situation unique.

Succulents: One Solution for the New California Garden

According to Weather West, a California weather blog authored by climate scientist, Daniel Swain, the latest seasonal predictions do not inspire a great deal of hope that the coming winter will bring drought relief. “A substantial La Nina event no longer appears to be in the cards. If it’s present at all, it will probably be quite weak.” Seems that persistent West Coast winter ridge may just rear its ugly head again. Even if subtle shifts in the large-scale atmosphere pattern lead to a different outcome here, our persistent drought is still on the table.

aeonium_sunburst_statice
Aeonium ‘Sunburst’ with statice limonium perezii

More and more people are asking me to update their landscaping to use less water and be lower maintenance. Many want a more modern look and what could be more architectural and clean looking than a succulent garden?

Converting to a low water landscape requires careful planning and design to achieve the look you want. You need to evaluate drainage patterns, soil types, slopes, areas of sun and shade and building locations. Hardscape features, such as patios, paths and decks require no water to maintain and by selecting permeable materials such as porous pavers and gravel, rainwater can infiltrate the ground. Large boulders can be used as accents.

Next comes the fun part- plant selection. In choosing the best succulents for your garden think about if your area gets frost during the winter. Does it have protection from a building or evergreen tree or do you live in a banana belt that rarely freezes? Are you planting in sun, shade or a combination?

In addition to the hardy succulents like sedum and sempervivum many showy succulents need only a bit of protection during our winters. Aeonium decorum ‘Sunburst’ is one of the showiest species with spectacular variegated cream and green 10″ rosettes. It looks terrific planted with black Voodoo aeonium. Aeoniums do well in our climate as they come from Arabia, East Africa and the Canary Islands where winter rainfall is the norm.

echeveria_lace-closeup
Echeveria ‘Lace’

Echeveria grow naturally in higher elevations of central Mexico to northwestern South America and so also do well in our our cool wet winters. ‘After Glow’ is frost tolerant and looks to be painted with florescent paint. There are spectacular hybrids being developed every year. These are not as hardy as the traditional hens and chicks but well worth the effort to find a place where they can survive a freeze. Frilly ‘Mauna Loa’ sports turquoise and burgundy foliage while Blue Curls echeveria looks like an anemone in a tide pool.

OLYMPUS DIGITAL CAMERA
Succulent selections

Aloes from South Africa and Arabia are old world plants. Many, like the medicinal aloe vera, are frost tender, but other such as the tree-like aloe plicitilis are hardy down to 25 degrees and look great either in the garden or in pots. Did you know the Egyptians used aloe in the mummification process or that there are no known wild populations of aloe? In South Africa an aloe called ferox is used in the same way as aloe vera for burns and stomach problems.

To ensure success when growing succulents, make sure your soil is fast draining. Our winter rains can rot even the toughest plants when their feet sit in soggy soil. Add sand, gravel or pumice to your soil or plant on mounds to increase drainage.

Save Water with a Dry Lush Landscape

In all the years I’ve been a landscape designer I’ve never heard anyone say to me “I want my garden to look like the desert.”  Using California native plants along with appropriate low water use plants from other Mediterranean dry climate areas can save water and look lush at the same time. We live in an area naturally rich with trees and shrubs and wildflowers that survive on seasonal rainfall. Here are some ideas to give your landscape a lush look while saving water.

succulent_garden
Succulent garden in progress

There’s no better place that showcases a dry lush landscape that my friend Richard Hencke’s garden in Scotts Valley.  Doc Hencke has been at this gardening business a long time starting when he was a kid in Texas and Oklahoma. I am always inspired whenever I visit his garden and come home with a car full of plant starts from his greenhouse. He’s a propagator extraordinaire who loves to share and is a good friend.

succulent_collection
Judy’s succulent garden

On this day I also wanted to see his new raccoon-proof pond and surrounding landscaping. There calandrina starts are settling in nicely. They haven’t started blooming yet but will soon with those neon-pink flowers that sway above the plant on long stems. This spectacular Chilean perennial is long blooming and perfect for a dry garden or difficult spot like a parking strip or hillside. It will suppress weeds as it grows, quickly spreading into a dense groundcover. Nearby is another bed filled with aeonium, sedums, kalanchoe, baby toes and other succulents designed by his wife, Judy.

Doc Hencke’s garden is comprised of a couple dozen different areas or garden rooms. He’s been enjoying discovering new succulents and adding to the new dry lush hillside. He’s growing several varieties of aloe, cordyline and yucca along with douglas iris which are doing fine given the same irrigation as the rest of the dry hillside. Blue Chalksticks or senecio mandralis border the path and their long bluish-green fleshy leaves look great near the red cordyline.

dry_lush_landscape
Doc Hencke’s dry lush entry landscaping

The secret to a lush look is to group plants into a vignette of complimentary elements. A vignette is a brief but powerful scene. Garden vignettes can be more than just plants. Doc Hencke’s driveway garden is a good example. An array of textural plants is combined with a weathered teak bench, richly colored, glazed pots filled with the architectural strappy leaves of phormium and a recirculating water fountain to complete the scene. The blue stone retaining wall is the perfect compliment to the blue and gold succulents that grow in the nooks and crannies.

A dry lush plant palette could also include plants such as Little John bottlebrush, dietes ‘Katrina’, Festival Burgundy cordyline, Hot Lips salvia, Variegated dianella, Amazing Red phormium, Icee Blue podocarpus, phlomis, Southern Moon rhaphiolepis, Gulf Stream nandina and Cousin Itt acacia.

A visit to this amazing garden wouldn’t be complete without admiring Doc Hencke’s prized Sand plum which he swears is the tallest in the country. Also called Chickasaw plums they are found naturally on sandy prairies in Oklahoma and Texas where they are very effective in stopping blowing sand. Wikepedia states this early blooming plum grows to 20 feet tall and Richard’s is about 30 feet tall. Just another in his long line of horticultural successes.

What’s Old is New Again in Garden Plants

pittosporum_tobira_blossom
Pittosporum tobira fragrant flowers

I remember walking with the main horticulturalist at Filoli Garden many years ago and hearing her extol the virtues of the established plantings that have survived drought and neglect with no pest problems for a very long time and are still growing beautifully in the garden. It’s not always the latest cultivars that have staying power. Some of the newer varieties are better but some are not as vigorous, some of those lovely variegated, striped or dark foliage plants revert over the years, some are prone to pests and diseases. Don’t overlook using been-around-for-ages workhorse plants in your garden.

Some of the survivors at Filoli Gardens over the years are California natives and others are just tough plants from other parts of the world. Take the common pittosporum you see in most every old garden. This plant makes a fine hedge, focal point or ground cover depending on the genus with a sweet fragrance in the spring while providing the bones or structure to your garden.

All of the various types of pittosporum are hardy in winter, grow in sun or shade and have low water needs. Pittosporum tobira flowers are scented like orange blossoms. Pittosporum eugenoides and tenuifolium – commonly grown as a hedge or small tree – have highly fragrant blossoms as does the ground cover ‘Wheeler’s Dwarf’.

lithodora_Grace_Ward
Lithodora ‘Grace Ward’

On a recent trip to the Gig Harbor, Washington area, lithodora ‘Grace Ward’ caught my attention in many gardens. With those electric blue flowers covering this ground cover it’s quite the show stopper. Lithodora is used more extensively than creeping rosemary in the Pacific Northwest as it can survive temps down to 0 degree or less. Growing with only moderate to occasional irrigation give this plant a try in your own garden.

agapanthus.2048
Agapanthus africanus

Next plant on my bring-back-the-old-favorites list is the lowly agapanthus or Lily of the Nile.  Sure you see it at every fast food restaurant and hotel you pass but the reason is that it grows and blooms so reliably with little care. This is one plant where the new cultivars are proving to be just a tough as the standard agapanthus africanus.

agapathus_Storm_Cloud
Agapanthus ‘Storm Cloud’

Agapanthus ‘Storm Cloud’ produces luxurious green foliage that tinges purple-red in the winter months. In summer large umbels of very deep blue flowers rise above the foliage on tall blackish stems. This variety takes a couple years to establish but blooms reliably from then on.

Two smaller types of agapanthus are ‘Queen Anne’, a semi-dwarf variety and the dwarf ’Peter Pan’. Both are available with blue or white flowers. There is also a variegated dwarf called ‘Tinkerbell’ which grows well also. All agapanthus tolerate frost and neglect and require only moderate watering.

So in addition to all the ceanothus- a California native- that grow so reliably don’t overlook some of these other workhorses. There’s a reason these plants have been grown successfully for such a long time. Be sure you include these old favorites in your garden along with those new cultivars that you just have to try out.

Spring Garden Madness & the Lessons Learned

echium_Tower_of_Jewels_bee_closeup
Tower of Jewels echium- a favorite of bees

Everybody’s garden looks the best in the spring. Plants are full of new, healthy growth and the heat of summer has not yet descended. Early flowering plants are at there peak and those that wait until summer to flower so that their nectar will attract hummingbirds, butterflies and bees are patiently awaiting their time in the sun. It’s a glorious time in the garden.

Filoli_flower_arrangement
Filoli flower arrangement

With this in mind I recently strolled Filoli Garden in Woodside to see what they were doing to conserve water while maintaining all their flower power. I also toured 5 gardens in Palo Alto on the Gamble Garden tour and got lots of ideas for sustainable and beautiful gardens.

Filoli_sunken_garden.2048
Filoli Sunken Garden

Filoli Garden is eye candy for any gardener. The estate grounds are maintained to perfection and it was interesting to see what changes they have in store for all those gorgeous, emerald green lawns. The roses, foxglove and peonies were in full bloom, the tulip pots now filled with colorful pansies. Several lawn areas had been reseeded while the large north lawn at the top overlooking the grounds had been allowed to go brown. This is what I learned they have planned to conserve water for the new lawn areas.

Filoili_solarium
Filoli solarium

Filoli is testing turf varieties that might grow well with less water and mowing in the coastal microclimate of Woodside. They have sown or planted twelve species and blends to trial. Each block will have a corresponding sign telling about the variety. The types being trialed include No Mow Fescue Mix, carex pansa, June grass, U.C. Verde buffalo grass, Pacific hair grass and Molate red fescue. Agrostis pallens, blue grama grass and purple needle grass are also included in the trials.

no_mow_lawn_red_fescue
No mow red fescue lawn

Many of these varieties are among the lawn replacement recommendations from Scotts Valley and San Lorenzo Water Districts. Rethink you lawn this year like Filoli Gardens and get a rebate, too.

Next on my spring garden tour agenda were several private gardens showcased on the annual Gamble Garden tour in Palo Alto. Because it’s a walking tour I got as many ideas from the gardens featured as I did passing by the front yards of the other houses. This is the neighborhood where Steve Jobs used to live. I don’t know if his family still does but his orchard on the corner lot is thriving.

fence_rustic
Rustic fence

The theme of this year’s garden tour, Garden are for Living, came through loud and clear in each of the gardens. Many featured sustainable features such as a decomposed granite patio that also serves also as a patanque court, poured in place concrete pavers, corten steel raised bed and path edging and dry laid flagstone paths. Edibles were included in every garden- from a grape-covered pergola to a cleverly designed raised veggie bed complete with steel corners and banding and lighting for evening dinner harvesting.

olive_Iceberg-rose_rosemary
low water combination- Olive, Iceberg rose and rosemary

While walking the neighborhood a low water use plant combination of ornamental olive trees underplanted with rosemary and Iceberg roses complemented one Mediterranean style home. Another garden nearby featured a rustic fence made from fallen tree branches. I must have taken a hundred pictures to remind me of all the great design ideas I saw that day. There is nothing like a spring garden tour to get the creative juices flowing.