Posts Tagged: California Center for Urban Horticulture
A welcome gift, indeed.
We placed our two little beneficial buddies on a yellow rose rose bush, "Sparkle and Shine," purchased last year during the Rose Weekend sponsored by the UC Davis-based California Center for Urban Horticulture (CCUH), part of the College of Agricultural and Environmental Sciences.
"Eat," we said. "Eat aphids."
Ladybugs don't always do what they're told. Sometimes they fly away.
However, the yellow roses are gorgeous. They remind me of "The Yellow Rose of Texas," a song--and flower--so loved by my Texas-born mother. "So pretty," she'd say.
Which bring us to this: CCHU's 2014 Rose Weekend is set Saturday, May 3 and Sunday, May 4 at the Foundation Plant Services, 455 Hopkins Road, UC Davis. CCHU kindly hosts this fundraiser just before Mother's Day to make gift-giving easier. The two-day event includes rose sales, bus tours of the Foundation Plant Services' eight acres of roses, and informational sessions on roses--everything you've always wanted to know about roses but didn't know who to ask.
Admission is free. Also free: a rose for each guest while supplies last. In addition, CCHU will offer for sale copies of the popular UC IPM book, "Healthy Roses." The bus tours of the eight-acre rose field will take place every 30 minutes, from 12:30 to 3:30 p.m., both Saturday and Sunday.
Saturday, May 3:
10 a.m. to 4 p.m.: Rose sale
12:30 p.m. to 3:30 p.m.: Rose field tours
10 a.m. to 11 a.m.: Peter Boyd, noted Rosarian
11 a.m. to noon: Christian Bedard, rose breeder
--UC Master Gardeners' booth for questions and answers
--Rose Tissue Culture Information Booth
Sunday, May 4:
10 a.m. to 4 p.m.,: Rose sale
12:30 to 3:30 p.m.: Rose field tours
UC Master Gardeners' booth for questions and answers
The colors? Among them: Luscious reds, brilliant golds, and pure-as-the-driven-snow whites. You can download an online catalog to help you with your selections. Some roses are All-American Rose Selections (AARS). To be selected, a rose is evaluated for two years under no-spray conditions, and must meet strict criteria for superior disease resistance, fragrance and flower color, according to CCHU director Dave Fujino and program manager Anne Schellman.
They're also provided a handy rose dictionary on their website for those unfamiliar with roses:
English-style roses: Roses with dense petals that possess a strong fragrance. David Austin roses are English roses.
Floribunda: Medium-sized flowers in a “spray” of blossoms. Compact plants that are smaller and “bushier” than hybrid teas.
Grandiflora: Largest rose plant, has hybrid tea-style roses in small clusters of 3-5. Stems can be used for cutting.
Hybrid tea: One large flower per stem. Plant is medium to tall. Stems can be used for cutting.
Polyantha: A bushy plant with vibrant flowers
Whether they're English-style, floribundas, grandifloras, hybrid teas, or polyanthas, everything will be coming up roses on May 3 and 4.
A ladybug foraging on a yellow rose, Sparkle and Shine. (Photo by Kathy Keatley Garvey)
It won't bloom until summer, but already many eyes are on the California buckeye.
The tree's blossoms are poisonous to honey bees. Bees are attracted to them and forage on them, but the end result of the food provisions to the colony can be deformed larval development.
We've seen bee hives within a quarter of a mile of California buckeyes (Aesculus californica). And we've seen honey bees, native bees and other pollinators foraging on the blossoms.
At the recent UC Davis Pollinator Gardening Workshop hosted by the California Center for Urban Horticulture, Extension apiculturist Eric Mussen talked about the poisonous plants. (See PowerPoint presentations.) That led to one workshop participant wondering if the flowers of the California buckeye are poisonous to native bees. (Honey bees are not native; the European colonists brought them to the Jamestown colony, Virginia, in 1622).
Responded Mussen: "My guess: either the native bees that have been in the areas around California buckeye for a long, long time are not poisoned by the pollen or they have been selected (by death of the other genetic types) to avoid the pollen, that eons of natural selection have adapted them to coexist with California buckeye while using their resources."
Native pollinator specialist Robbin Thorp, emeritus professor of entomology at UC Davis, shared: "We know California buckeye nectar and/or pollen is toxic to honey bees from years of experience with managed hives. Toxicity to native bees and other flower visitors is not so easily determined and to my knowledge has not been investigated. The fact that populations of native bees and butterflies visit California buckeye flowers and continue to persist in areas where the tree is a dominant part of the plant community tends to confirm what Extension apiculturist Eric Mussen says about them. Some good research projects here. So we still do not know if it is the nectar, pollen, or both that may be toxic to honey bees, much less to native flower visitors."
According to gardeningguides.com, the seeds in their raw state are poisonous to humans, but native Americans learned to get around that and use them for food. They pounded the seeds into flour and then cooked the mixture. "This tree had multiple cultural uses among California Indian tribes," the website says. "Many indigenous groups utilized buckeye seeds for food, often when other plant food sources were scarce. These tribes included the Costanoan, Salinan, Kitanemuk, Serrano, Wappo, Sierra Miwok, Coast Miwok, Chumash, Kawaiisu, Northern Maidu among others. The Pomo ate the seeds even when other important food plants were plentiful. The seeds are poisonous to humans in the raw state. Thus, the nuts were cracked open with a rock, the shells removed, the seeds pounded into flour, and their toxic saponins removed in a lengthy leaching process. The meal was subsequently cooked and eaten. There are many different methods for processing and cooking buckeye seeds for food, depending upon the tribe. The seeds have medicinal properties and were cut into pieces, mixed with water, and made into suppositories for hemorrhoids by the Costanoan and Kawaiisu. The Pomo cut bark from the base of the tree and made a poultice, which was laid on a snakebite. Young buckeye shoots were sometimes used as spindles or twirling sticks in fire-making kits of the Sierra Miwok, Northern Maidu, Wappo, Yahi and other tribes. Many tribes mashed buckeye nuts and poured the contents into quiet pools to stupefy or kill fish."
And, no wildlife will eat buckeye seeds except squirrels, such as the California ground squirrel (Citellus beecheyi).
Meanwhile, the poisonous blossoms continue to beckon the honey bees--and their colonies keep producing deformed bees.
Honey bee foraging last May on a California buckeye, which is poisonous to honey bees. (Photo by Kathy Keatley Garvey)
A California buckeye blooming in May of last year on the UC Davis campus. (Photo by Kathy Keatley Garvey)
It's not "Rise and Shine!" any more.
It's "Sparkle and Shine."
"Sparkle and Shine," a yellow rose related to the Julia Child Rose, drew quite a bit of attention at the UC Davis event, "Roses: the "Eyeconic Weekend," sponsored May 4-5 by the California Center for Urban Horticulture (CCUH) at Foundation Plant Services, 455 Hopkins Road, west of the central campus.
Participants loved it--and so did the honey bees. The bees--probably from the nearby Harry H. Laidlaw Jr. Honey Bee Research Facility--beelined to that floribunda, but they also foraged on many other roses.
CCUH executive director Dave Fujino described the event as quite successful. The good news is that some of the roses are still available for sale. An online rose catalog depicts such roses as Yabba Dabba Doo, Big Momma, Tiddly Winks, Wild Blue Yonder, McCartney Rose, Passionate Kisses, and Oh My!
You can email Fujino at firstname.lastname@example.org with your rose request (and ascertain the availability) and then purchase the roses at the Foundation Plant Services site, corner of Hopkins and Straloch roads, from 4 to 5 p.m. on Wednesday, May 8 and Friday, May 10, Fujino said. (From west Hutchison Drive, take Hopkins Road and then Straloch Road. See map.)
Then it's gearing up for next year's rose days. The event (free admission) is always held the first weekend of May, right before Mother's Day. Guests look forward to touring eight acres of roses, learning rose care at informational/training sessions, and gracing their gardens with their choices.
The bees foraging on the roses are "free" but they won't go home with you because they already have a home!
Honey bee foraging on a yellow rose, "Sparkle and Shine!" (Photo by Kathy Keatley Garvey)
A sign tells it all. (Photo by Kathy Keatley Garvey)
Dave Fujino, executive director of the California Center for Urban Horticulture with Missy Gable, newly selected statewide director of the UC Master Gardener Program. (Photo by Kathy Keatley Garvey)
So began Joe South in his hit song, "I Never Promised You a Rose Garden," popularized by country singer Lynn Anderson in 1970.
That was Joe South's rose garden. What UC Davis has is an eight-acre field of roses, and you're invited to celebrate "Roses: the "Eyeconic Weekend" on Saturday and Sunday, May 4-5. It's a free event, with free training/informational sessions. The best part, however, is you can tour the rose field and select and buy a wide variety of container roses for your own garden.
The California Center for Urban Horticulture (CCUH), part of the College of Agricultural and Environmental Sciences at UC Davis, sponsors this annual fundraiser.
The rose sale takes place from 10 a.m. to 4 p.m. both Saturday, May 4 and Sunday, May 5 at Foundation Plant Services, 455 Hopkins Road, west of the central campus.
Rose field tours will be given from 12:30 to 3:30 p.m. on both days. Free mini floribunda roses will be handed out to the first 250 attendees, says CCUH executive director Dave Fujino.
Fujino invites the public to attend the free informational sessions, offered both days at the same site. No registration is required.
The agenda for Saturday, May 4 for the free informational sessions:
- 11 a.m. to noon: New rose varieties
- 1 to 2 p.m., Roses 101 (placement, planting and feeding)
- 2 to 4 p.m., Pruning
- 3 to 4 p.m.: Pest management
The agenda for Sunday, May 5 for the free informational sessions:
- 11 a.m. to noon: New rose varieties
- 1 to 2 p.m.: Roses 101 (placement, planting and feeding)
- 2 to 4 p.m.: Pruning
- 3 to 4 p.m.: Disease Identification (Bring your diseased specimens in a sealed baggie)
These "Rose Days" are what folks look forward to every year. Want to check out the beauty and fragrance? Want to learn how to prune roses? Want to ask a question about a pest or a beneficial insect? This is the place.
A rose catalog is online to aid you in your choices. There you'll see photos of such roses as Yabba Dabba Doo, Big Momma, Tiddly Winks, Wild Blue Yonder, McCartney Rose, Passionate Kisses, and Oh My!
Also available for sale ($10) will be the UC ANR book on "Healthy Roses."
No, this isn't Joe South's rose garden. This is the UC Davis eight-acre field of roses.
Yellow roses are popular at the rose sale. (Photo by Kathy Keatley Garvey)
This is what you don't want to see on your rose: rose curculio or rose weevil. You can ask questions about pests at the rose event. (Photo by Kathy Keatley Garvey)
Honey bees aren't that much into roses. Wild roses, yes. Cultivated roses, not so much. Given a choice, they'll take the lavenders, mints and salvia (sage) over the roses any time.
Occasionally, however, we see honey bees foraging on roses in the UC Davis Arboretum's Storer Garden on Garrod Drive, or in the Häagen-Dazs Honey Bee Haven on Bee Biology Road.
Ah, roses! One of life's simple pleasures. And what would Mother's Day be without them?
Speaking of roses, this weekend on the UC Davis campus is all about roses. The California Center for Urban Horticulture (CCUH) and Foundation Plant Services are teaming to present their fifth annual Rose Day on Saturday, May 5 from 8 a.m. to 5:30 p.m.
Melissa "Missy" Gable, program manager of CCHU, says the May 5th event, themed "Your Sustainable Backyard: Roses," will include talks and demonstrations; a tour of the Storer Garden on Garrod Drive; a tour of the Foundation Plant Services' eight-acre rose field on Hopkins Road; and a tour of the All-American Rose Selection test garden on Hopkins Road. And it's all for $45. (See registration or contact Missy (Borel) Gable at email@example.com for more information.)
Workshop participants--as well as the general public--can not only smell the roses but buy them from 2:30 to 5:30 p.m., Saturday, May 5 at the Foundation Plant Services site at 454 Hopkins Road. Rose plants are $25 each, five or more for $22, and 10 or more for $18--cash and checks only.
Then on Sunday, May 6, the public rose sales will continue from noon to 5 p.m. at the Foundation Plant Services site. Think hybrid teas, grandifloras, climbers and landscape roses. "Four-inch Cinco de Mayo rose plants will be given out while supplies last," Gable said.
Sale proceeds will benefit horticulture education at UC Davis--a good cause.
And maybe, just maybe, you might see a few bees on the roses. You won't be charged extra!
(Directions: The Foundation Plant Services, 455 Hopkins Road, is located on the corner of Hopkins and Straloch, about a mile west of the UC Davis central campus. Take Hutchinson west of 113, turn right toward the new West Village apartments at the first traffic circle, then west again onto Hutchinson at the second traffic circle. Take a left on Hopkins at the second line of olive trees. Note: While you're in the area, you might want to stop by and see the half-acre Häagen-Dazs Honey Bee Haven, a bee friendly demonstration garden located next to the Harry H. Laidlaw Jr. Honey Bee Research Facility on Bee Biology Road, off Hopkins Road. It's open from dawn to dusk every day; admission is free.)
Honey bee foraging on a rose. (Photo by Kathy Keatley Garvey)
Honey bee blends into a rose. (Photo by Kathy Keatley Garvey)
Honey bee working a rose. (Photo by Kathy Keatley Garvey)