Temecula Valley Rose Society Newsletter – Print Version

September 2020  Vol. 31, No. 09

Co-President's Message

by Linda Freeman

TVRS Co-President

Are you counting the days until Fall weather? I am hoping my roses will survive these brutal heat waves and give me some sort of Fall flush and I am looking forward to seeing what Fall Rose Haven blooms will look like! Thanks for everyone's help at Rose Haven – we are looking forward to our 30th anniversary in 2021!

Date: Thursday, September 17, 2020
Time: 10:00 a.m.
Place: Rose Haven Heritage Garden, 30592 Jedediah Smith Rd, Temecula, 92592
Topic: What's New at Rose Haven?

We were not able to meet in the garden in August due to the heat wave and we are hoping Mother Nature cooperates for our September meeting. We will be getting an overview of our garden renovations and be able to walk the site of our new Boos Courtyard brick labyrinth. Kathy Trudeau will be updating us on our labyrinth brick fundraiser. Wear good walking shoes and bring water and wear masks — social distancing and current County protocols will be in place. Feel free to bring a folding chair!

How Do Our Garden (Critters!) Grow?

by Rebecca Weersing

Rebecca Weersing

Well, life is certainly full of surprises. A number of years ago someone, or some-someones, made donations of Red -Eared Sliders (water turtles) to our pond. The sliders adapted to life in the pond and charmed garden visitors, particularly children. With our recent pond renovation, we have experienced some unintended consequences.

We have the case of the dying/disappearing water lilies that have been clogging the nets and filters. We have the case of water flow to the motors being restricted. And what about those seemingly very healthy and large turtles?

Our turtles have to eat and their diet is normally comprised of mostly aquatic vegetation, insects, and deceased marine animals. "Mostly aquatic vegetation" in our pond means water lilies. Within two months the water lilies have disappeared! Although we hope the water lilies will recover at some point from the pond reconstruction, the question for us all: Will the nibbling turtles eat faster than the water lilies can grow? If we are not able to maintain an environment in which the sliders can remain healthy and well-fed, is there a new home for them somewhere?

So, I've done a bit of research and here is some guidance from in an article concerning 'Help with Unwanted Red-Ear Sliders'.

The article begins "I'm sorry, but I don't know of anywhere that has an opening for red-eared sliders. Unfortunately, it's a more complex issue than you may realize. I don't have an easy solution, but we've organized some information that may help you understand the issue better. If you're willing to invest some time and effort, there are options for your own sliders. I hope this helps!"

The article goes on to explain that millions of sliders are bred for the pet trade. What people don't realize when they buy the quarter-sized hatchlings is that sliders grow into dinner-plate-sized adults capable of living decades. Whomever previously owned our sliders must have believed that our pond could provide a better home, and for a number of years that was true. However, we have now remodeled the pond and what we as a Society need to discuss is whether or not the sliders can continue to be residents of our pond. Another website to explore is San Diego Turtle & Tortoise Society Rescue Services.

The Rose Haven Committee would appreciate your thoughts, comments and suggestions. Contact us at Rose Haven Committee.

For some more fasciniting information on these "pests" go here.

Share Your Blossoms

by Virginia Boos

Past TVRS President

At the September meeting, at the end of our hot summer, we usually begin the Little Rose Show display, but since this year we may be having a Zoom meeting instead of the library room gathering, let's consider showing our summer blooms online.

The Little Rose Show has a long history with TVRS. It is our attempt to familiarize members with entering a judged rose show. Many of our members have delighted us with their spectacular rose entries. It's mildly competitive in nature, following the American Rose Society judging rules. The individual roses are judged and awarded points based on their qualities. Points are recorded for the entire year, and in December a first, second and third place award are presented. There are six shows per year at our monthly meetings, in April, May and June, plus September, October and November.

It's easy to enter. Walk around your garden the day before the monthly meeting, looking for blooms that aren't quite open (showing the stamens). They will continue opening, especially as they are brought indoors. Cut as long a stem as possible, longer for the Hybrid Teas, shorter for the Floribundas. Put into water and refrigerate, if possible. Transporting to the show can be difficult, since they are in water, in a vase. A bucket can be useful here, with some support to keep the vase(s) from tipping. (I use my plastic garden shoes for this support.) Once you have made it into the hall, you then need to fill out the entry tag(s), giving the variety and classification. There is information and assistance available at the entry table. Each entrant is limited to six entries. Experienced exhibitors usually bring more than six, in case of mishaps.

There are six classes in our show. First: One Hybrid Tea or Grandiflora, without sidebuds; Second: One Floribunda, without sidebuds; Third: One Miniature, without sidebuds; Fourth: One Floribunda spray; Fifth: One Miniature spray; Sixth: One stem of any other type or unknown variety.

So "catch up" on this event. Give it a try. It's fun to see what other members are growing.

Becoming a Consulting Rosarian in 2021/2022

by Linda Freeman

I am writing this article to encourage all of our members to consider becoming a Consulting Rosarian in 2021/2022. To further our Temecula Valley Rose Society's community mission we need Consulting Rosarians.

The American Rose Society just finished an online, multi-day Rose School webinar, and another one is planned for February 2021. It sounds daunting to become a Consulting Rosarian, but with our hands-on experiences at Rose Haven and in our personal gardens, and the wonderful education from our longtime members, we need to carry on this tradition in our community. It is our mission to share the love and care of roses. We don't have to be "perfect" rose growers, but we can educate and help community members explore the world of roses. We are lucky to have Frank Brines as a Master Consulting Rosarian (and Horticulture Judge). Please feel free to contact me regarding becoming a CR and I will help you get the information you need.

Below are the requirements from the American Rose Society:

You can become a CR too by completing some necessary requirements, including Membership in the American Rose Society,
At least three years of experience growing roses,
Have successfully completed a CR school.

We are proud of our 1,288 ARS Certified Consulting Rosarians (CR) across America. Consulting Rosarians are an important asset to the American Rose Society. CRs are trained to provide important information on rose culture. They willingly and enthusiastically share their time and talent with both new and old rosarians.

Our CRs are among the most active members of the American Rose Society and our local rose societies. An ARS certified Consulting Rosarian can help you. An ARS CR can address almost any question about growing roses. A CR provides basic as well as advanced information to the rosarian. Our motto is to keep the information simple and understandable.

Anyone can grow roses. The message of CRs is always positive and helpful.

Monthly Program

Because of the COVID-19 pandemic there will NOT be a September meeting at the library. Thank you for your under­standing. Stay home and stay safe.

Date: Thursday, September 17 -  meeting postponed - the Library is closed until further notice. .

Until then let's all see what you have blooming in your gardens and at Rose Haven, and share tips by emailing to Linda Freeman at lee.linda@verizon.net so we can share and have a virtual garden tour this spring. Also, visit us on Facebook for roses from around the world as well as local rose information.

Birthdays and New Members

Birthdays New Members
Birthday Cake

Betty Dixon - 9/29, Nardo Felipe - 9/11, Gayle Hansen - 9/4, Kathy Katz - 9/28, Marian Mauch - 9/2, Louis Noell - 9/1, Ron Rumbold - 9/30, Bridgett Wyncott - 9/1.


✔  There are no new members this month.

Rose Haven Flora

Text and photos by Bonnie Bell

Bonnie Bell

Surrounding the hill beneath the gazebo are several "Blue Heron" shrub roses which are quite spectacular. One cannot miss the gorgeous mauve/lavender blossoms, and the shrubs are quite large. Several other Blue Heron shrubs are sprinkled throughout the garden.

"Blue Heron" was bred in the Netherlands and brought to the United States in 1984. It produces small, single to semi-double, large clusters of flowers growing 4 ft. to 8 ft. tall, with wide and bushy light green foliage. It has an ARS rating of 8.5 and grows very well in our area and is very disease resistant. Although not a cutting flower for arrangements, it makes an outstanding display at Rose Haven.

"Lavender Dream"

"Lavender Dream"
"Lavender Dream"

Rose Haven Fauna

Photos by Kathy Trudeau

The Rose Haven pond does attract a variety of interesting birds and animals, not just Red-Eared Slider turtles. The other day Kathy Trudeau was at the pond and saw this blue heron, apparetly eating some of our frogs and mosquito fish. Unfortunately, the turtles were too large to be swallowed, and so remain.

Blue Heron
Blue Heron

Rose Care FUNda­men­tals

by Frank Brines, Master Consulting Rosarian

Frank Brines

I checked the weather projections and learned that temperatures for the next 7-10 days for So Cal are for mid 90s to 115. Add to that higher than normal humidity due to warmer ocean water temperatures. All in all, temperatures are trending higher in the last five years. I advise you to thoroughly hydrate your roses over the next few days to prepare them for the high temps coming and continue to do so until cooler weather. If you're using drip irrigation, run your system in the early evening to give your roses the opportunity to thoroughly hydrate. If you're using a hose or other non-surface method, do it in the early morning – it's best to avoid getting water on vegetation during these high temp days.

If you are following my prescribed practice of allowing your roses to rest during the summer, you still have several weeks to take it easy before a mid-season pruning. As a wise man once said, "Predicting things is difficult, especially in the future," but one can only assume it will look a little like the past, especially with the weather. So, I'll give it a try: This year I had planned to do my mid-season pruning first week of September. Since there will be no fall rose shows and I have had an infestation of Chilli Thrips and due to projected high temps, I will remove all infected growths and then prune as I have time. Be careful of removing too much vegetation that would expose canes to the hot sun and sunburn which could kill the cane.

If you have a special event for which you would like to have fresh rose blooms, count back 6-8 weeks from that planned event to determine when you should do your end-of-summer pruning. You can possibly have two more bloom cycles this calendar year. Remember, a mid-season pruning is light, removing any point along a cane where many stems of blooms came out. For quicker repeat blooming, prune each cane back to just above the outward facing bud at the base of the first five leaflets leaf.

During periods of sustained high temperatures, it is necessary to ensure plants receive adequate water to stay hydrated. It takes only a few days in these temperatures without sufficient water for a bush to be severely damaged or killed. Assess conditions every morning. Look for wilted or dry crisping foliage. Sometimes if you discover it soon enough, dousing the stems and leaves with plenty of water in addition to applying plenty of water to the ground, may save the plant.

If you wait to inspect until the afternoon or evening it may be too late, or you might not get a good assessment of the plant's condition. After a hot day, most plants can appear wilted while still receiving sufficient hydration. Also, inspect your irrigation system to make sure it is delivering enough water, isn't clogged, and isn't over watering – all problems that come with age in drip irrigation systems. If an emitter is delivering much more or much less water than others on the line, it can change the system pressure and affect the other emitters. The simple solution: Replace it!

Plants in pots require more frequent watering than those in the ground. As the soil dries it pulls away from the sides of the pots allowing water to run through the soil without penetrating the soil. Sun shining on the pot (whether black plastic or clay) can steam the roots of the plant which also requires more water to maintain a cooler temperature of the soil. This being said, plastic is still preferred over clay, as clay loses moisture through its many pores. Double potting can moderate drying. This practice would at least have a curtain of cooling air between the pots, an insulation of some type would be more efficient. One more thing: The longer the soil is in a pot, the less porous space is available in the root zone, so repot every two years or so.

This time of year hot temps also attract spider mites. This topic was covered in a previous care column which you can find on TemeculaValleyRoseSociety.org newsletter; look for Care for September 2013. If you see signs of yellowing foliage you may have an infestation. Check the underside of the lower leaves for grainy feeling substance or tap onto a paper to see these very small critters. The easiest way to treat is to use strong spray of water from below to give the plant a shower and rinse the mites to the ground. If you see fine webbing you may need a stronger method.

I've noticed another problem as result of the weather this year: High temps and humidity have increased instances of Black Spot (indicated by yellow leaves with usually round shaped black spots). I have not seen any sign of black spot in my garden yet. With the humidity comes dewy nights which then tends to incubate powdery mildew. I have been troubled by this mildew throughout this year in my garden. I have discovered damage from Chilli Thrips, however that is difficult to recognize until it becomes obvious. At the first signs of any of these it is best to start treating with fungicide or a pesticide (preferably one containing Spinosad). See last month's article.

After the pruning has be accomplished and at least one thorough application of water, apply a good fertilizer. Read the directions on the container to discern type of application and what to do. I use granules, powder or liquid and water it in for the quickest effect. My colleagues are recommending the use of fish emulsion and seaweed fertilizers at the rate of 1 table spoon for each per gallon of water applied now. REMEMBER: Never fertilize a dry or stressed plant and always water the day before.

Now would be good time to order composted mulch. Here is a formula you can use to determine the quantity you will need. An area 10' x 50' needs 4-5 cubic yards to cover the garden 3"-4" which is the depth I recommend. This is the best product you can apply to protect your roses roots from heat and cold.

A valuable bi-monthly magazine which covers rose topics is the "American Rose", published by the American Rose Society (ARS). Go to their web site at the American Rose Society for more information on obtaining it.