Master rosarian shares tips with Farmer Fred
Julia Child roses line a path in Charlotte Owendyk’s garden. Charlotte Owendyk
When’s the best time to “make” new roses? In the spring, when bushes are growing fast and full of hormones.
Rose propagation via cuttings is easiest in April, May and June, says master rosarian Charlotte Owendyk, who grows hundreds of bushes in her beautiful Roseville garden. Fall is a close second.
That’s just a taste of rosy tips Owendyk offers as this week’s guest on Farmer Fred Hoffman’s podcast, “Garden Basics with Farmer Fred.” During episode 321, the pair discuss spring rose care basics including recognizing diseases and pests. Owendyk notes that hummingbirds love visiting spring rose gardens – they eat aphids! (Other birds like them, too.)
Listen to the podcast here: https://gardenbasics.net/.
Owendyk also shared some of her favorite roses such as ‘Julia Child,’ a yellow floribunda the color of butter. She grows several Julias as tree roses lining the walkway to her front door.
As for propagation, Owendyk has grown many, many new bushes from cuttings, especially miniatures and old varieties not available in nurseries. Don’t get discouraged from a poor success rate; only about half of the cuttings will root in even the best circumstances.
Cuttings are most likely to root if they were attached to a rose that just bloomed. Cut some flowers with longer stems, enjoy them in a vase until the flower is fully open, then use the stem for propagation.
Remember to label your pots! Otherwise, you’ll be left guessing which rose is which. It will be a long time before that little plant will bloom.
Have patience; the rose bushes you see in nurseries are three years old or more.
Farmer Fred shared Owendyk’s instructions in his newsletter:
Charlotte’s Tips for Propagating a Rose Plant
1. Water the rose plant the day before you take cuttings, so the cutting will be fully hydrated.
2. Use a 5-gallon pot and fill it half full with a mixture of 60% peat moss and 40% perlite. (Both retain water and will keep the cutting moist.) Dampen the mixture so it’s moist, but not soggy.
3. Select a healthy plant to take the cuttings. Avoid leaves with diseases and insects! Looking at the plant, pick the best part of the plant. Choose a stem that is vigorous and healthy and is on a healthy and vigorous cane. For softer growers, those with more pith (white inner portion of stem), use older part of cane since this type of stem has a greater possibility of rotting.
4. Select a stem where the rose has just cracked open to just fully open. At this stage, the buds along that stem will produce roots; increasing your success rate. Once the rose is spent, the plant is now telling the buds along the stem to begin producing a new flower.
5. Cut just below the eye (bud, where the leaflet is attached) since this is the most active growing part of the plant.
6. Essentially the cutting only needs two buds – one above the soil and one below. However, many propagators prefer to use a three-node cutting. Remove the bottom leaflet, since this node will be inserted in the growing medium (peat moss and perlite). The remaining one or two leaflets will continue to manufacture food for the cutting.
7. Wash the cutting with 1% bleach (one part bleach to four parts water). Use gloves! Wrap cuttings in a wet paper towel for 24 hours and place in a cooler. Cooler temperatures stimulate the formation of roots.
8. Dip the bottom stem in rooting hormone; use a powder not liquid. (Indolebutyric Acid is the leading plant hormone used to promote the formation of roots in plants and to generate new roots in the cloning of plants through cuttings).
9. Plant at an angle up to the bottom leaf, but make sure that the leaf doesn’t touch the growing medium. Do not crowd the cuttings. (Don’t forget to label your cuttings!)
10. Cover the pot with plastic and punch three or four holes for ventilation.
11. Place the pot in a window on the east side of the house. Check once a week to make sure that the growing medium is damp enough. If you have a heating mat, use it since it accelerates the process.
12. Pull off the plastic in 28 days. Water with diluted liquid fertilizer; acclimate new plants to outdoors.
13. Cut back the little rose plants several times to build up roots. When they look sturdier, transfer to separate pots. This process takes several weeks.
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Food in My Back Yard Series
June 17: Help pollinators help your garden
June 10: Battling early-season tomato pests
June 3: Make your own compost
May 27: Where are the bees when you need them?
May 20: How to help tomatoes thrive on hot days
May 13: Your plants can tell you more than any calendar can
May 6: Maintain soil moisture with mulch for garden success
April 29: What's (already) wrong with my tomato plants?
April 22: Should you stock up on fertilizer? (Yes!)
April 15: Grow culinary herbs in containers
April 8: When to plant summer vegetables
April 1: Don't be fooled by these garden myths
March 25: Fertilizer tips: How to 'feed' your vegetables for healthy growth
March 18: Time to give vegetable seedlings some more space
March 11: Ways to win the fight against weeds
March 4: Potatoes from the garden
Feb. 25: Plant a fruit tree now -- for later
Feb. 18: How to squeeze more food into less space
Feb. 11: When to plant? Consider staggering your transplants
Feb. 4: Starting in seed starting
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Garden Checklist for week of June 15
Make the most of this “average” weather; your garden is growing fast! (So are the weeds!)
* Warm weather brings rapid growth in the vegetable garden, with tomatoes and squash enjoying the heat. Deep-water, then feed with a balanced fertilizer. Bone meal can spur the bloom cycle and help set fruit.
* Generally, tomatoes need deep watering two to three times a week, but don’t let them dry out completely. That can encourage blossom-end rot.
* From seed, plant corn, melons, pumpkins, radishes, squash and sunflowers.
* Plant basil to go with your tomatoes.
* Transplant summer annuals such as petunias, marigolds and zinnias. It’s also a good time to transplant perennial flowers including astilbe, columbine, coneflowers, coreopsis, dahlias, rudbeckia, salvia and verbena.
* Pull weeds before they go to seed.
* Let the grass grow longer. Set the mower blades high to reduce stress on your lawn during summer heat. To cut down on evaporation, water your lawn deeply during the wee hours of the morning, between 2 and 8 a.m.
* Tie up vines and stake tall plants such as gladiolus and lilies. That gives their heavy flowers some support.
* Dig and divide crowded bulbs after the tops have died down.
* Feed summer flowers with a slow-release fertilizer.
* Mulch, mulch, mulch! This “blanket” keeps moisture in the soil longer and helps your plants cope during hot weather. It also helps smother weeds.
* Thin grapes on the vine for bigger, better clusters later this summer.
* Cut back fruit-bearing canes on berries.
* Feed camellias, azaleas and other acid-loving plants. Mulch to conserve moisture and reduce heat stress.
* Cut back Shasta daisies after flowering to encourage a second bloom in the fall.
* Trim off dead flowers from rose bushes to keep them blooming through the summer. Roses also benefit from deep watering and feeding now. A top dressing of aged compost will keep them happy. It feeds as well as keeps roots moist.
* Pinch back chrysanthemums for bushier plants with many more flowers in September.