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I just went a little crape myrtle crazy at our house because our backyard was really bland and boring, so I planted 4 crape myrtles to spice it up a bit. I planted one close to the house near our bedroom window. It is the newer "Delta Jazz" cultivar that is supposed to stay small, around 6-8 feet. In the corners where our fence meets our neighbor's fences on either side, and in one other spot that I would like some privacy and a screening effect, I planted 3 "Centennial Spirit" crape myrtles. These are the 3 that I am most eager to see grow. They are each around 30-36 inches tall right now. I dug out a hole a little over double the size of the containers they came in and mixed some of the native dirt/clay with compost and Miracle Grow brand garden soil for trees and shrubs. Filled it back in around the trees and put about 2-3 inches of mulch on top of the soil. They are close to a 6 foot wooden fence, but not too close, and they should get at least 7-8 hours of sun each day, closer to 9 once the days are longer, and when they get a little taller than the fence they will get full sun all day. I bought the trees at a local Lowe's, actually got them the day they came in off the truck from the nursery. They were trained to only 1 or 2 trunks, which I really like, and almost all of the growth on it is vertical. Anyone have any experience with this cultivar and how fast it grows if maintained properly? I would like them to reach 8-10 feet tomorrow, or I guess I by the weekend would do. Any tricks to speed them up in a healthy manner? Or do I have to tie myself to my patio chair and be patient?
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In my experience the smaller cultivars are usually much slower growing like maybe 6-12 inches per year in trunk height. Could be wrong with this one though.
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Next time skip the miracle die soil. There's no need to ammend clay soil for crapemyrtles and I'd actually remove that now contaminated soil if possible and replace with the native soil. |
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I'm kinda baffled with trying to find good info on crape myrtles as far as height/size goes. Texas A&M horticulture dept list the Centennial Spirit as reaching 8-12. Univ of Georgia lists it as reaching 10-20 feet. Reputable tree farms in the area also vary, some say 10-12 feet, some say 15-20 feet. The tag that was on it at Lowe's list it as reaching 12 feet. I would assume that it would grow faster from its current height if it has the potential to reach the 15+ range, and not as fast if it is going to max out closer to 10. I'm just surprised at the amount of conflicting info coming from places with good reputations. As for amending the soil, I've always read that by combining the native soil with compost or garden soil, you give the tree roots a mixture to grow into before they reach the native soil. Basically, if the container the tree comes in is all nutrient rich fast draining soil, and you drop it into an area of seriously thick and heavy clay, the roots do not move into the clay as well, so blending in some compost and garden soil with the clay creates a "transition" soil. I have some dwarf crape myrtles in the front yard that I planted the same way and they have done terrific. The mixture I make is around 3/4 native soil/clay and the rest compost or garden soil for trees/shrubs, so its not very much non native
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TX boomerang,
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I have never heard to not amend the soil at all. Some of the longtime gardening experts I've talked to in the area say to do it, just don't put a lot of amendment which is why I left about 3/4 native to about 1/4 amendment.
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What butterfly4u said. It can promote girdled roots. As for your original question, which I neglected to answer, the newer cultivars often have conflicting growth rates posted online because people just don't really know. It takes decades to get a consensus on these things. The first 2-3 years (dep. on size) are going to be spent growing mostly underground, getting established. |
I purchased centennial spirit crape myrtle at lowes this summer. How much will they grow this summer and fall? I bought six to put as a divider between my house and the neighbors. Hope they grow quick. One I purchased already had flowers the other five did not......Should I expect those to start producing flowers soon?
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Patience, patience, patience. It is the only way I ever learned patience -- when I became a gardener. Your CMs are growing. They're just developing underground. And when plants are allowed to take their own time to develop and grow, they perform better. Fast growing trees and shrubs sound great -- but they tend to be weak and less healthy. Five years ago we planted three Judd Viburnums under our kitchen window. They sat there for nearly two seasons, no more than 1 1/2 ft. tall. I remembered the old sleep-creep-leap gardening adage and I was patient. Sure enough, they took off, and now they are over 4-ft tall and just gorgeous. Breathe in...breathe out...be patient. You cannot make a plant grow faster than it was meant to. All you can do is do things that make it grow slower or kill it. As gardeners, we must follow Nature's laws, because Nature always wins. |
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Quote: Originally Posted by pepperjack123 I purchased centennial spirit crape myrtle at lowes this summer. How much will they grow this summer and fall? I bought six to put as a divider between my house and the neighbors. Hope they grow quick. One I purchased already had flowers the other five did not......Should I expect those to start producing flowers soon? LOL Listen to Tina.... patience truly is a virtue when it comes to the garden. In the best of conditions Centennial Spirit crape myrtles get to be up to 20 feet tall with a spread of close to 15 feet. According to my sources, if it is healthy and in decent soil and left unpruned, it can grow as much as 3 feet per year. Generally speaking in the first year there will be very little visible above ground growth (maybe a foot) since the tree is putting much of its energy into forming roots. It should put in the full 3 feet, or close to it, next year. The trees may still have some flowers but after transplanting but usually this is less than normal as the tree tries to form roots first. They will flower on time and fully next summer. |
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