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Saturday, 04 September 2010

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Coach's Q&A - Hydrangeas

QUESTION:

My hydrangeas don’t bloom. What’s wrong?

ANSWER:

ImageThe single biggest reason Hydrangeas do not bloom is because their buds either are frozen or are pruned off. You can't do much about the freezing, except to plant newer varieties that bloom on new wood. 

If you prune in the late summer, fall, or spring, you remove the buds.  Hydrangeas should only be pruned right after they flower because they set next years buds not long after the current blossoms open.

Bottom line, don't prune a hydrangea at all unless the bush needs shaping up and then only do it right after the flowers open. 

To harvest flowers for bouquets or to dry, cut the stems of the flowers just before the next set of buds.  This gives you very short flower stems (which you can wire to florist picks) and leaves the new buds so you have flowers next year.

 
NEWS - Seeds in Space

NASA Seeds in Space logoPlant growth will be an important part of space exploration in the future. NASA and Park seed have partnered in a Seeds in Space experiment. U.S. School children and their teachers are invited to participate in NASA’S Engineering Design Challenge, using cinnamon basil seeds that hitched a ride on the space station and returned.

"Some of the basil seeds will remain on the station to be grown in zero gravity. The rest will be returned to Earth and divided into kits for students to study seed germination rates -- how fast the space basil grows compared to Earth basil. Students will also learn more about the scientific method -- techniques for investigating phenomena and acquiring new knowledge about a subject.

To get the seeds to classrooms, NASA works with the George W. Park Seed Company in Greenwood, S.C. The company began its relationship with NASA and student experiments in the 1980s with the Space Exposed Experiment Developed for Students, or SEEDS program."

Visit www.successwithseed.org and click on the "To find out more about the Engineering Design Challenge" link in the right-hand column. On the Design Challenge page, you will find detailed instructions and photos to help you grow cinnamon basil from seed. This information will help with many of your seed starting projects, not just cinnamon basil.

For information on NASA’s Design Challenge, open to schoolchildren, go to http://www.nasa.gov/audience/foreducators/plantgrowth/home/index.html

 
Calling All Plant Fanatics

I live with a grass hugger. There is only one person in this household who protects grass and misses it when it is gone. He fusses when I dig up just the teeniest more piece of turf. I think, "Grass paths" he thinks, "Sweeping lawn." The Turf Wars are in full force at this, our new garden.

There are so many new plants. They are seductive, luring me with wondrous names, new blossom colors, larger flowers, colorful foliage, more resistance to heat, insects, and/or disease. Some even take into consideration a dwindling rainfall and are water wise.

My garden overflows, but still I want the newest agastache, ‘Black Adder'. I must have this plant! The pink agastache, ‘Sonoran Sunset', is a total winner in my garden, throwing tall, graceful spikes of flowers all summer long. Whereas the older agastaches, more commonly known as hyssop, are bee magnets, these newer, larger flowers entice hummingbirds and butterflies to visit.

Fall is the perfect time for yet another trip to the landscape center for more bags of compost to ready beds that will encroach just a bit on the turf. (By the way, you know you are a fanatical gardener when the landscape center people know your first name.)

Those composted beds will give me hollyhocks like grandma’s. Except, these hollyhocks are now bred to be resistant to rust, a disease that put them in the trash in the old days. Hollyhock Old Barnyard Mix has this resistance. These old-fashioned singles in deepest reds to brightest yellows are not only no-care-easy but their verticality takes up little space in the crowded sunny border.

Do you want a border that screams color? There is a blazing new daylily, Hemerocallis Moses’ Fire. He flashes in several ways: With traffic stopping color, twice-blooming habit, and a very uncharacteristic mounded daylily center. His fire engine red six-inch blossoms are not for shrinking violets.

Do some blossoms fade too soon for your taste? This false holly, Osmanthus heterophyllus ‘Goshiki’ scores. Who needs flowers when this shrub will light up four to ten feet in all directions of the landscape? Maroon, pink, and bronze flood the foliage in early spring. In summer, the leaves are backwashed with yellow, silver, and deep green sponge painted with freckles, splotches, and flecks of cream. Best of all, it is hardy to minus 10 degrees F.

If you are in a speckle-freckle mood, as I seem to be, try out a new amaryllis this holiday season. One that looks like it will be worth trying is Amaryllis ‘Aphrodite'. It is white with speckles, streaks, and petals outlined in salmon pink. It takes about eight weeks from bulb to flower, so it isn’t too early to bring one home.

If you have hellebores in your garden, you know just how seductive their winter foliage and earliest spring flowers can be. A new one, H. ‘Ivory Prince', has up facing, flattened flowers that open white and fade to a rose and cream layer over light green. This one is going to squeeze into my winter border.

There are two new dianthus with unusual color to put on your "to try" list, ‘Inferno’ and Raspberry Surprise™. They are on mine. The photos of these two lovelies are scrumptious. They will blossom forth nicely in your, and my, early spring garden.

Scabiosa Vivid Violet is a lovely new color. If it lives up to its promise, it will have long-lasting larger blossoms than the scabiosas that have been available. All scabiosa flowers bounce atop springy stems as long as they are sited in total sun. Part shade can cause them to get a little floppy. Even if they droop, they are not flops.

New plants beckon. Lawn or flowers? Silly question. The answer is simple when you are a plant fanatic.

---Posted by Coach Anne, October 15, 2007---

 
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