heat tolerant roses
Elen Gunawan
4 years ago
last modified: 4 years ago
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kathleen MK
4 years agosautesmom Sacramento
4 years agoRelated Discussions
heat-tolerant container roses?
Comments (7)The main issue with your heat is the size and type of container you're intending to use. There IS a great difference between the heat tolerance of the various types. Plant roots want cool, damp, dark conditions in which to live. Clay and ceramic are cooking utensils. You can actually buy cookware made out of those materials. They're very efficient as they absorb, retain and radiate heat for a long time. Plastic, foam, wood even concrete containers vary in their heat efficiency with foam, wood and concrete providing the most insulation from the direct heat of the sun's rays as well as the air and reflected surface heat. For a deck, you probably want the lightest material available to reduce the load and damage to the surface and structure. I would definitely suggest the largest containers you can handle and find, and definitely wooden or foam types as the first choice, with plastic used as a distant third. Think of the roots as perishable, requiring an ice chest to insulate them from heat damage. The material you choose should provide that heat insulation to prevent direct cooking of the roots against the container sides, as well as the heat cooking all of the soil moisture from the root ball and eventually damaging or even killing the plant. You may be able to successfully grow a hybrid tea in a seven gallon container without that extra heat, so you might want to consider at least a ten gallon, perhaps even a fifteen gallon container for the same rose on the deck. You are probably also going to consider a saucer under the pot to reduce the water damage and staining to the deck surface, but that is likely not a good idea for the plant. All of the dissolved "salts" in the water, plus those already in the soil and any fertilizers are going to reduce, concentrate, in the saucer and, hence, the soil like over cooking a soup or sauce too long, making them saltier and saltier until the concentration becomes toxic, even fatal for the plant. If you need to use a saucer under the pot, you'd be best served by filling it with gravel so there is some room for the drain water while the soil is kept out of it so none of the increasingly salty water is drawn back up into the roots. I think you'll find if you stagger the pot sizes with smaller ones, containing more heat tolerant plant types, in front of the larger pots, you can also reduce the direct and radiated heat effects on the larger pots. Some people plant other plants in with the roses, which isn't my preference. A vigorously growing plant needs all the moisture it can get. Most of the time, a pot becomes too restricted in size and water holding capabilities. Adding any other roots to that soil ball increases the competition between the plants and increases the necessity for you to water more often. As for which specific varieties of roses are more "heat tolerant", the most suitable information for you will come from those who grow them in similar arid heat to yours. A humid 100 degrees is far different from an arid 100 degrees. You can successfully grow "sun azaleas" in hot, humid sun. They will NOT grow in my arid, hot sun of similar recorded temperature even with properly amended soil, adjusted fertilizer and water levels. That humidity can make all the difference in the world whether a petal endures the heat, or simply fries. You'll find very, very few roses have petals which will endure full, triple digit sun exposure, particularly in a container which is significantly hotter than what the surrounding soil temperatures are just a few inches under ground. Also keep in mind that the air temps might be one level, but the reflected, radiated heat from the deck surface can easily increase the surrounding heat dramatically, sometimes an easy twenty degrees, or more, during the most intense part of the day. That's what enables people in cooler/colder climates to successfully grow more tender plant types in pots and against walls where the heat is greater and lasts longer. Of course, these are all choices and decisions you'll need to make and all are up to you. But, knowing some of the considerations to keep in mind, permits you to make the ones best suited for the plants you want and your "gardening style", time and energy. Good luck! Kim...See MoreWhat to put next to John Paul II
Comments (15)After finally tearing out 4 enourmous clarissa hollies from the front bed under my living room windows; i prep'd the bed for roses. The bed is about 11 feet wide and will be nicely framing in the sides with 2' panels of the white plastic lattice to allow my newly purchased/planted Don Juan's (climbing red rose, prolific bloomer with excellant aroma....or so my dilligent research says) between these two climbers is about an 8' span under my windows. I planned to put 4 PJP in there to enable them to somewhat hedge together and provide the striking pure white blossoms to contrast nicely ; but with order with the Don Juans I think that with a pure white blossom on the PJP whatever planted next to it needs to be another singular pure color. I doubt a coral/orange/peach blend would be appropriate....but thats just me...See MoreNeed suggestions for a BS resistant, heat tolerant apricot rose
Comments (21)Kristine, Easy does it looks very pretty, how is the fragrance? heirloom says lightly fragrant. The reason I said strongly fragrant in my initial post is that if not, i dont smell anything! For instance, in my garden, Heritage does very well, but I only detect a light fragrance:(. Nothing from the likes of Lady of Shallot or Belindas dream. Push comes to shove, i'll take something that is not very fragrant, but was hoping in that broad range of yellow to coral, I can find an strong bloomer that will look OK with no spray. Eustacia Vye looks great. Surprisingly some Austins do well enough for me. I have a new flower bed coming up soon, so making a side list for that as well! Dianela, i will look up Tamora, was not on my radar, thanks!...See MoreGardeners in hot & dry climates, please share your heat tolerant roses
Comments (51)Hi @KJ (9B, San Jose CA) I am still evaluating most of my roses. It's too early to tell, but I will definitely post at the end of the summer who lived and who fried on my zero shade frying pan of a rooftop in zone 11. I am observing my plants and rating them. I hope I don't sound like I'm splitting hairs, but I think there's several degrees of heat tolerance. In my notes I rank things like this. A+: Rose is totally unaffected by weeks of 100+ degree weather. Blooms and foliage still pristlne. A: Plant itself is healthy and undamaged in the heat, but blooming stops. Perhaps some will disagree but to me no blooms is better than fried blooms. A plant that knows when to take a break from blooming to preserve itself is a smart plant. B: The plant itself tolerates the heat and foliage is undamaged, but blooms fry. Aesthetic inconvenience rather than a true intolerance of heat. C: Some fried foliage. Canes healthy, or minor sunburn. D: Foliage and canes suffer sunburn. Plant looks very bad, but recovers when temps come down. F : Not gonna make it....See MoreBenT (NorCal 9B Sunset 14)
4 years agolast modified: 4 years agoElen Gunawan
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4 years agosautesmom Sacramento
4 years agoElen Gunawan
4 years agolast modified: 4 years agoVaporvac Z6-OhioRiverValley
4 years agoElen Gunawan
4 years agosautesmom Sacramento
4 years agoladybug A 9a Houston area
4 years agoroseseek
4 years agoElen Gunawan
4 years agolast modified: 4 years agomustbnuts zone 9 sunset 9
4 years agoElen Gunawan
4 years agoVaporvac Z6-OhioRiverValley
4 years agoingrid_vc so. CA zone 9
4 years agoElen Gunawan
4 years agoElen Gunawan
4 years agoVaporvac Z6-OhioRiverValley
4 years agoElen Gunawan
4 years agoVaporvac Z6-OhioRiverValley
4 years agoElen Gunawan
4 years agolast modified: 4 years agoElen Gunawan
4 years agoSheila z8a Rogue Valley OR
4 years agoElen Gunawan
4 years agoSheila z8a Rogue Valley OR
4 years agosautesmom Sacramento
4 years agoElen Gunawan
4 years ago
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