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May
9 & 10 PHGSC Annual Plant Sale .. pictures.
May
6
Membership Meeting
"Secrets to Growing Beautiful Dahlias".... pictures
Deborah Dietz, Dahlia Society of
California
Dahlias can be as small as a dime or as large as a basketball,
according to Deborah Dietz, our speaker and a member of the
Dahlia Society of California.
Deborah edits the society’s online newsletter and is one of five
principal growers from the society who tend to the dahlia dell in
Golden Gate Park.
In her slide show, Deborah gave us a history of
dahlias, how to plant and care for them, and pointed out what to
look
for in a good dahlia.
Competition dahlias, she explains, produce fewer tubers than the varieties grown in nurseries.
Deborah brought along some show quality and other dahlias to sell.
Deborah's speaking style was interactive, and she answered many member's questions throughout her talk.
April
26 di Rosa Art & Nature
Reserve Trip... members only
The di
Rosa Art & Nature Preservenear
Napa is a natural
wildlife preserve with a wide variety of native plants artfully interspersed with sculptures.
The historic winery-turned-residence houses
hundreds of works by California artists. Pictures and updated
description forthcoming.
April
19
PHGSC Succulent Propagation
Workshop ...
pictures
Our
succulent focus this month included a demonstration workshop
on how to
propagate these hardy, water-retaining plants.
Kaye
Rosso,
a long-time PHGSC member and head propagator at the Ruth Bancroft Garden,
led a workshop showing us how to make those babies
grow.
The fastest way to root a succulent cutting, according to
Kaye Rosso, is to put the stem in a jar with a little water – but not
enough to touch the stem.
Before that, though, it’s essential to let the cutting dry
out for three days or longer, Kaye said.
She offered a wealth of tips and techniques
at the succulent propagation workshop she presented April 19
and hosted by Lynn and Rocco Grassano.
Because succulents store water, they hate being too cold or
too wet, Kaye emphasized.
She prefers to
plant succulents in the ground, but favors pots for frost- tender
varieties that should be moved to a more sheltered area in winter.
When potting, Kaye likes to use a 60-40 mixture of potting
soil and pumice. Sand, she said, tends to pack and hamper drainage,
while pebbles can get hot and burn roots.
To keep bugs out and soil in, Kaye lines the bottom of her
pots with fine screen. She fertilizes sparingly with a 0-10-10 formula
because it has no nitrogen, which would make succulents grow too fast
and alter their basic shape.
A newly
potted succulent should be placed in filtered sun and not be watered
until it shows new growth, Kaye advised.
Succulent roots grow sideways as well as down, so put a
potted succulent inside a somewhat larger pot to help protect the roots
from heat, Kaye said.
She also
recommended repotting every year to give succulents continued room to
grow.
April
1
Membership
Meeting
Gardening
with Succulents for
Bold
Year Round Color
Ernesto
Sandoval, Curator, UC Davis
Botanical Conservatory
(there is a
picture of Ernesto and Ted on WWW page above; Ernesto
is on left...)
Succulents
that grow well in the ground – even in
clay soils
– were part of a lively, energetic presentation by Ernesto Sandoval,
our
speaker for the April meeting.
He became
interested in succulents when he started college at UC-Davis in 1991
and began working in its Botanical Conservatory. He is now the curator
there.
Ernesto favors
succulents because they are drought tolerant and have year-round
interest.
His talk covered how to grow succulents in pots and
directly in your garden, the requirements for light and moisture, and
the types of succulents to consider.
Ernesto’s slide show provided many great ideas.
For those who were inspired, he sold succulents and
other bulbs and plants that were
propagated at the UC-Davis Botanical Conservatory. All proceeds will go to the
conservatory....pictures
March
29 PHGSC Workshop.... pictures
Shell
Gardens
A
morning workshop learning to
make these small shell
gardens... both for the Plant Sale and your garden.
With the careful planning of
Lisa Robinson and the guidance and coaching of Phil Greig, we
had a successful
workshop March 29th to create
abalone shell gardens
using rooted succulents, along with decorative rocks, small shells,
and other items.
The goal
was to
sell our arrangements at this year’s
plant sale.
Lisa Robinson donated
the shells, thanks to
a friend who dives for them.
Shells not sold at the Plant Sale will be available to workshop
participants.
The Workshop was hosted by
Julie
Schnur & Phil Greig.... thank you Julie & Phil.
The Club supplied
the
shells (thanks again, Lisa), soil, and used Phil’s expertise as leader.
Thanks again to Lisa
and Phil
(and Julie) for an enjoyable morning.
March 5th
Membership Meeting
Presentation
by Todd Sutton, Composting Guru, WasteSleuth.com
 We
hear it from our speakers all the time: the
best way to amend our soil
is to add compost, compost, compost.
At
our March meeting we got the “nitty
gritty” from Todd Sutton, Master
Composter, Master Gardener, and consultant/owner/operator of WasteSleuth.com.
Sutton’s motto is “everything
rots,” and his theory is that
anybody can set up a compost system. He’ll showed us
ways that are
easy on our budgets and our backs.
Sutton’s gave us a bin full of tips,
including his “recipe”
for successful composting, plus using water to help along the process,
avoiding unwanted pests, eliminating odors, and knowing when the
product is finished and ready to use.
Composting is good for the earth, said Sutton, since we
recycle
much of our yard waste rather than send it to the dump, and we
fertilize less with petrochemicals.
Whether you were an experienced composter
or just
starting out, Sutton’s presentation wasn't a
waste!
*********************************************
Sutton’s consulting
business specializes in waste
prevention,
reuse and recycling. He previously served 14 years as a program manager
with StopWaste.org,
an Alameda County waste management agency. He is currently working to
debut a television show on Discovery TV’s new channel, Planet
Green.
February
5th
Membership Meeting
Life After Lawn:
Toward the New
Naturalism --
Focus on Form, Texture--.... pictures
Presentation
by Anthony Garza,
Jr., Supervisor, Horticulture and Grounds,
UC Berkeley
Botanical Garden
(http://botanicalgarden.berkeley.edu)
Anthony
Garza gravitates toward gardens of
grasses, rushes and interesting accents.
This “new naturalism” is a European movement that
is slowly taking hold
in the U.S., according to Garza, our February speaker.
He designed and manages a great example of new naturalism at
the public entrance to the
UC-Berkeley Botanical Garden, where Garza is supervisor of horticulture
and grounds.
Garza defined new naturalism as:
» Dense plantings, with random
repetition of elements for design cohesion.
»
Heavy reliance on natural species and/or nonhybrid plants.
»
Extensive use of plants that evoke a heightened sense of nature, i.e.
grasses and
grass-like plants.
»
Use of plants that look good year-round, even when dormant or
deciduous, i.e. grasses
and umbellifers.
»
Regionalism: the engagement, rather than coercion, of nature and her
processes.
New naturalism plants that Garza displayed in his
slide show included varieties of Restio,
Muhlenbergia, Astelia, Libertia, and Carex.
Many of these are now in nurseries, said Garza, or they can
be bought at plant sales
such as the ones held at the Botanical Garden.
Grassy and strapped-leafed plants may be accented by palms,
cycads and Agaves, Garza said.
Note:
Garza’s presentation included images from
his
personal garden in Oakland that was featured, along with an article he
wrote, in the fall 2006 issue of Pacific Horticulture
magazine.
January
8th Membership Meeting
Aesthetic
Pruning...Prune with Intention and Attention
Presentation
by Michael
Alliger, Professional Pruner and Pruning Instructor,
Merritt College ...pictures
Aesthetic pruning – shaping a small tree
or woody
bush – takes a little forethought, as well as stepping back
frequently
to see how it’s going.
Begin, said
Michael Alliger, our January speaker, with a clear idea or purpose for
your pruning project.
It may be to cut
back overgrowth, show off the plant in its full natural expression, or
correct earlier pruning mistakes.
Before
cutting, look at the plant from all angles to decide where and what
shaping is needed, Alliger said.
Often,
it’s best to start at the back and bottom, and even from the
inside
out, Alliger advised. With branches in hand, he demonstrated:
Thinning
– to reduce density and allow light and air to penetrate.
Re-leadering
– to reduce height and width by creating a smaller side
branch as the
new leader. It takes a good eye and may take 2 to 5 years to reduce a
woody plant properly.
Heading
or tipping –
to shorten long shoots and counteract legginess.
“Think of your plants as letting you into their
space,” when
you are ready to prune, Alliger said. “Remember,
your plants
are alive and they can’t run away.”
pictures
Michael
Alliger
is on a mission to demystify pruning for
the home gardener. As our January speaker, he aimed to make
the fundamentals of pruning
accessible to everyone. His presentation empowered pruners with a
few basic skills and provided a proven approach to aesthetic pruning.
Michael is a full-time professional aesthetic pruner and
pruning
instructor at Merritt College in Oakland. He discovered his love of
plants when a major career change inspired him to study horticulture at
Merritt College. He had found his true calling, and studied plants and
pruning with a passion. At Merritt, he met Dennis Makishima, master
pruner and bonsai enthusiast. Michael was impressed with
Dennis’s
innovative approach to pruning, which seeks to bring out the essence
and form of the plant.
Michael
apprenticed under Dennis
for six years and then started his own pruning company in the East Bay
in 1986. He later moved his business to Sebastapol, where he
currently lives.
Michael’s focus is on woody plants that hold their
form. They
allow us to anticipate seasonal changes and refine their shape over the
years, unlike plants that are essentially cut to the ground each season.
Michael’s presentation covered common
landscaping
shrubs
and
small trees, and he demonstrated aesthetic pruning techniques
on plant
material he’ll brought to the meeting.
Although he
specializes in Japanese garden plants, Michael sees pruning as an art
form that can be appreciated by all gardeners.
Further information on his type of pruning can be
found at www.aestheticpruning.org. |

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