Tag Archives: UCSC Arboretum

Autumnal Equinox

The autumnal equinox will arrive on Monday, September 23rd this year. It’s the official start of fall when the sun crosses the celestial equator and moves southward. The earth’s axis of rotation is perpendicular to the line connecting the centers of the earth and the sun on this day. Many people believe that the earth experiences 12 hours each of day and night on the equinox. However, this is not exactly the case.

During the equinox, the length is nearly equal but not entirely because the day is slightly longer in places that are further away from the equator – like where we live. Also the sun takes longer to rise and set in these locations as it does not set straight down but in a horizontal direction.

With the changing of the season, take advantage of fall planting weather. It was a hot summer and Iím ready for fall. This is the perfect time for transplanting or adding new plants to your garden. Why? Cooler air is kinder to plant foliage while soil temperatures are still warm creating an excellent environment for new root growth. In the fall many plants and trees, even broadleaf evergreens, are entering a period of dormancy. With no need to allocate resources into foliage, plants are transferring all their energy into roots and storing nutrients for the cool months ahead. By spring, the new root systems should be well established.

I had hoped to spend some time at the UCSC Arboretum earlier this year when the showy pincushion and leucospermum protea were flowering but I never made it. Because anytimeís a good time to visit the arboretum I dropped by recently. There is always something in bloom there and the hummingbirds know it. Here are just a few of the spectacular fall blooming plants that you might want to add to your own garden.

Leaucadendron Jester

The Leaucadendron ĎJesterí (Sunshine Conebush), another type of protea, were loaded with brilliant deep wine-red bracts. This evergreen shrub grows to 5 feet tall and is very pest and disease resistant. Deer arenít interested in the showy bright pink, cream and green foliage and itís quite drought tolerant once established. You can cut the branches as they are prized for use in floral arrangement. People think that protea are hard to grow but really itís a plant-it-and almost-forget-it kind of plant. They need good drainage and donít like phosphorus fertilizer preferring poor soils with minimal care. Sounds like a winner to me.

Epilobium ‘Mattole Select’

A little further down the trail I came across another easy to care for plant. California fuchsia have undergone several name changes over the years but whether you call them epilobium or zauchneria they are in bloom now. The ‘Mattole Select’ cultivar forms tidy 6 inch high mats of beautiful silver foliage. Late summer through fall brings orangey-red tubular flowers which attract hummingbirds. Spreading by underground rhizomes, this epilobium increases size a little less vigorously than the others. Itís more shade tolerant than most California fuchsias and needs just a bit more water but itís still quite drought tolerant. Pruning plants down to a few inches in late autumn helps rejuvenate them for the following year.

Grevillea junipera ‘Monoglo’

As I followed the hummingbirds around the arboretum I came across another groundcover that both the birds and the bees favored. Grevillea juniperina ĎMolongloí (Juniper Leafed Grevillea) blooms with a soft yellow flower unlike most grevillea. This fast growing evergreen forms a mass of dark green soft needle-like leaves and bears an extremely profuse show of light golden yellow flowers from late spring to winter. This tough hardy drought tolerant plants is the perfect groundcover for large areas and will cascade down slopes and walls.

Iím looking forward to another visit to the arboretum this winter as the Australian garden will be in full bloom then.

Great Plants for a California Garden

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Leucospermum with chondropetalum

Our local UCSC Arboretum is a place everyone can enjoy. You can marvel at the dozens of jewel-tone hummingbirds darting about feeding on nectar of colorful flowers while strolling the gardens for new plant ideas.

There are still lots of dramatic leucospermum in bloom as well as California native plants that flower mid to late summer. The rainfall last December helped many of the drought tolerant plants grow more foliage and put on a better show this year. The hummingbirds couldnít get enough of the erica blooming in shades of pink, orange and red. There must have been a dozen darting about feeding and chirping between the shrubs.

If you are looking for some inspiration for new low water-use plants you havenít tried the nursery at the Arboretum has a good selection. They replenish the stock from their growing area on a regular basis so thereís always something to catch your eye. Here are some that I plan to grow myself or recommend to others.

Hemiandra pungens

Color in the garden is something we all relish. One of the plants that caught my eye is called Hemiandra pungens. Pretty lavender-magenta flower clusters cover this small one foot plant. Itís drought tolerant although it looks better with occasional summer water.

This bright little shrub is another of the plants from Australia being trialed at the Arboretum. The Koala Blooms plant introduction program is a joint venture which include growers here and in Australia. Plants are evaluated for their beauty, durability and sturdiness with regard to drought, weather extremes and variations in soil types. Out of the trailing process new plants are selected and offered for sale to the public. Visit the Arboretum website for info on other great plants you might want to try in your garden. www.arboretum.ucsc.edu/koala-blooms

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Pimalea ferruginea ‘Bon Petite’

Another showy perennial thatís sure to make itís way into the next appropriate garden I design is Pimelea ferruginea ĎBon Petiteí. Bright pink umbel blossoms cover this small plant for many months starting in the spring. Itís hardy down to 25 degrees and requires little water once established. Also originating in Australia it looks great in a native low water-use cottage garden.

The common name for this plant is pink rice flower. The pot in the arboretum nursery happened to be placed near a red mimulus but it looked great even though you might think the color combination would be all wrong. Nature has a way of making things work despite the rules of the color wheel.

Several varieties of correa – also called Australian fuchsia – caught my eye. Although the flowers of this plant resemble fuchsias they are not related. Some do best with regular watering during the summer but the lovely correa pulchella ĎPink Eyreí is drought tolerant once established. Grow this three foot compact evergreen shrub in partial sun where it will bloom from fall through springtime and provide nectar for hummingbirds during the wintertime.

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Salvia guarantica

I was also drawn to the brilliant cobalt blue flowers of salvia guarantica. This plant is worth growing – in sun or partial shade – even though you might need to cut it down to ground level after each winter like Mexican bush sage. Growing four to five feet tall it starts blooming in early summer and continues till frost. They also do well in containers and are a favorite of hummingbirds.

Prostanthera was well represented with three varieties – ĎPoorinda Brideí, íPurple Hazeí and my personal favorite, the Variegated Mint Bush. They are all good choices for colorful, easy to grow, hardy shrubs that require only occasional irrigation.

Among other choices at the Arboretum nursery were stand-by’s such as lionís tail, Mexican marigold, Germander sage, Copper Glow New Zealand tea tree and giant buckwheat. This local resource offers a cornucopia of inspiration.

The “Chicken Palace”, Shade Veggies and UCSC Arboretum Visit

aster-like_flowers_UCSC_arboretumWe humans used to be mostly foragers and obtained our nutrition before the end of the last ice age by being hunter-gatherers. According to David Christian in his book ‘This Fleeting World’, agriculture arose independently in multiple, unconnected areas of the world in roughly the same historic timeframe. Foragers, he says, lived comparatively leisurely lives with good nutrition, working just a few hours each day, while those in agricultural communities toiled almost ceaselessly and had comparatively poor nutrition. What happened to make us the agricultural society we are today?

Christian points out that the end of the ice age occurred at the same time that foragers migrated around the globe. Warmer, wetter and more productive climates may have increased populations in some regions with increased population pressure. It may explain why, in several parts of the world, beginning about ten thousand years ago, some communities of foragers began to settle down.

The rest is history. Many of us are returning to growing and producing our own food whenever we are able. Even on a small scale, a garden, a few fruit trees, a chicken or two or three, all help to put healthy, nutritious food on our table.

The other day I was in a garden I helped create and saw the results of her edibles mixed chicken_palace.1600in with ornamental plants and fragrant flowers that attract bees, butterflies and other pollinators to the garden. Her “chicken palace” would be the envy of every chicken in the county. Annie, the dog, was more than happy to show me how it was made with boards from the old barn, new corrugated iron siding along with some new wood. Their palace keeps the chickens safe from predators and sheltered from the elements. The best feature is the roosting spot near the top which can be easily accessed from doors that checking_for_eggs.1600open at deck level to check for eggs. On this morning two of the girls were “working” so we didn’t disturb them.

Earlier in the week, I visited a garden where the only place available to grow vegetables was a little shady. Huge cottonwood trees shaded much of the area and even when thinned the trees would always block some of the sun. We decided she could grow cherry tomatoes that ripen even in part shade on the east side as most of the sun that reached the area fell from mid-day on. Also she likes green beans, so a bush variety would conserve space and not block the sun to other vegetables. There are so many bush beans available. She’ll pick from 8 different organic varieties available from Renee’s Garden Seeds. With mouth-watering names such as Royalty Purple, Tricolor Bush,
the favorite of gourmets, Nickel Filet, and the French yellow Roc D’Or she’ll have a hard time deciding.

Other vegetables that will produce without sun all day long include spinach, bush peas, kale, chard, lettuce and root crops like beets, carrots, potatoes and radishes. They may take a bit longer to mature without full sun so be patient.

I rounded out the week by visiting the UCSC Arboretum. Regardless of the time of year, Fremontodendron_californicumwhenever I pass by this jewel of a garden I always stop by to see what’s blooming and what the birds are up to. I had dropped by in February before the rains came and was a little concerned that the December freeze compounded by the lack of rain had stressed the plants. They were in survival mode and it didn’t look like they were going to be putting on their usual spectacular spring display. It was happy to see that the rains came in the nick of time and everything was now blooming away. Vivid lilac, aster-like flowers absolutely covered some low shrubs.

California flannel bush or fremontodendron californium were covered with bright yellow flowerss in the California Natives garden. A low growing species that may have been Pine Hill from the Sierra was also in full bloom.† All daisy-like flowers_UCSC_arboretumwere breathtaking.

Before I left I also enjoyed a stand of arcotis-like pink daisies that bordered the South African and New Zealand gardens.† With no name tags to help me identify them I could only enjoy their beauty but then isn’t that what it’s all about?