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- Q.Dying Plants In Flower Bed - I live in hot Houston. Over the last few months some of the plants on one side of the landscaping ...
- Q.Why Have New Leaves Started To Change Color - Why have the new leaves started to change color? The new growth during the summer has now started to go ...
- Q.Cannas And Hydrangeas - I have planted the new bulbs in the spring. They grew up nice and green but no flowers up to ...
- Q.Light Brown Layer On Stem - Under it is green. If I rub off with finger, it comes back the light brown colour. What is it ...
- Q.Growing Plants/vegetables Next To Swimming Pool - I set up a garden behind my pool, and have yet to get anything to grow. I have planted Cilantro, ...
- Q.Yellow Leaves - At one end of a long border a mahonia charity, anenome huphensis and viburnum carlesii have all got yellowing leaves. ...
- Q.Vegetable Leaf White Spot And Hole - I want to ask, what is the cause of these white spots and tiny holes on my vegetables? Please refer ...
Asked by
Rare3 on
September 26, 2016
77059Q.Dying plants in flower bed
I live in hot Houston. Over the last few months some of the plants on one side of the landscaping flower bed are dying off. I've lost a large hibiscus plant, multiple rose bushes, and some red tips. What is going on? I don't see any obvious bugs. etc. and it's well watered and evenly fertilized. Any advice, please?
Answered by
Alisma on
September 26, 2016
Certified ExpertA.If these plants were new this year or last year, they may have died from transplant-related damage or because their roots failed to establish well in the soil. If these were shrubs that had already been in the bed for several years, look for other causes.
Since the plants you lost were of multiple different species, I would suspect animal damage. Animals could have stripped bark off the base of each shrub and severely injured or girdled it, or voles could have attacked the roots:
http://msue.anr.msu.edu/news/your_plants_and_winter_animal_damageThere is one disease called Verticillium wilt that can attack all the plants you mention, but this would have caused noticeable symptoms before they died:
https://www.gardeningknowhow.com/plant-problems/disease/verticillium-wilt-treatment.htmWas this answer useful?00
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- Asked by
Anonymous on
September 26, 2016Q.Why have new leaves started to change color
Why have the new leaves started to change color? The new growth during the summer has now started to go a light brown. Is it because of hot sun?
- Answered by
Downtoearthdigs on
September 27, 2016A.I'm not clear on the type of plant your are referring to. Over exposure to bright intense sunlight can burn plants and leaves.
Here is a link that explains this problem.https://www.gardeningknowhow.com/plant-problems/environmental/leaf-scald-in-plants.htm
Was this answer useful?00 - Asked by
Macushla on
October 16, 2016
Raleigh N CQ.Cannas and Hydrangeas
I have planted the new bulbs in the spring. They grew up nice and green but no flowers up to now. I put bone meal in the soil. We live in Raleigh, NC. It was more hot and muggy this year for longer periods of time this summer than usual. I watered every other day. There was also an attack of Japanese Beetles. I did the same thing last year and got many flowerings. What's up? Also, my hydrangea, very old, never flowered. Did bone meal and acid miracle grow. Again, what's up? Thanks. Peggy Kearney
- Answered by
Downtoearthdigs on
October 18, 2016A.Fall is a great time to do a soil test. This is really the only way to determine if your soil is meeting the plants nutrient needs or if you need to amend the soil.
Over fertilizing can give your plants too much nitrogen which will inhibit flowering.
Pests and weather conditions can impact the plants health and effect the flowering.Here are some links with more information including a link to help you locate your nearest Extension Office. The Extension Office can help you with a soil test for a small fee.
https://www.gardeningknowhow.com/extension-search/
https://www.gardeningknowhow.com/ornamental/shrubs/hydrangea/hydrangea-not-blooming.htm
https://www.gardeningknowhow.com/ornamental/bulbs/canna/canna-lily-care.htm
https://www.gardeningknowhow.com/plant-problems/pests/insects/japanese-beetle-resistant-plants.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-soil.htmWas this answer useful?00 - Asked by
jnt2 on
October 30, 2016Q.light brown layer on stem
Under it is green. If I rub off with finger, it comes back the light brown colour. What is it and how do I get rid of it? Thanks.
- Answered by
Alisma on
October 30, 2016
Certified ExpertA.Is this a Christmas cactus? Here is a guide to diseases of Christmas cactus. Perhaps Botrytis blight could cause these symptoms.
Was this answer useful?00 - Asked by
larrymarcoux on
November 8, 2016
Bradenton, Florida 34209Q.Growing plants/vegetables next to swimming pool
I set up a garden behind my pool, and have yet to get anything to grow. I have planted Cilantro, Tomatoes, Green Beans, Onions, Garlic and nothing grows. Even purchased potted tomato plants with tomatoes on them and they won't grow any bigger. Do you think that chlorine gas from my swimming pool is to blame and, if so, should I move the raised dirt I put in or just start from scratch? The chlorine is the only thing I can come up with for my failure to grow plants there. Your help would be greatly appreciated. Larry.
- Answered by
Alisma on
November 9, 2016
Certified ExpertA.I don't think the chlorine would hurt the plants. Perhaps there is another issue with the soil or site that is hurting the plants. For example, the soil could be too low in organic material and could need compost. A soil test could help with this.
Pool water can also create glare that could burn or overheat plants. However, there are plenty of plants that can grow directly next to a pool:
https://www.gardeningknowhow.com/special/spaces/planting-around-pools.htmWas this answer useful?00 - Asked by
Bevvers on
November 18, 2016
IrelandQ.Yellow leaves
At one end of a long border a mahonia charity, anenome huphensis and viburnum carlesii have all got yellowing leaves. At the other end of the border, the plants are healthy, including other anemones. Is there something wrong with the soil at this end of the border and what should I do about it?
- Answered by
Alisma on
November 18, 2016
Certified ExpertA.These plants are suffering from a nutrient deficiency, most likely of magnesium and/or iron. See the below articles for how to supplement the soil with these nutrients. You may also want to have a soil test done so you know how much to apply and whether the soil pH needs correction.
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/fixing-magnesium-deficiency.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/epsom-salt-gardening.htm
https://www.gardeningknowhow.com/plant-problems/environmental/leaf-chlorosis-and-iron.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/iron-for-plants.htmWas this answer useful?00 - Asked by
Roylan Jr Pongos on
January 16, 2017
new zealandQ.Vegetable Leaf White Spot and Hole
I want to ask, what is the cause of these white spots and tiny holes on my vegetables? Please refer to the photo. Regards, Roy
- Answered by
Alisma on
January 16, 2017
Certified ExpertA.The damage in the photo looks like it was caused by flea beetles or a similar small beetle. Please see the following information about these pests:
https://www.gardeningknowhow.com/plant-problems/pests/insects/controlling-flea-beetles.htm
https://www.gardeningknowhow.com/plant-problems/pests/insects/what-are-flea-beetles.htm
http://www.extension.umn.edu/garden/insects/find/flea-beetles/Was this answer useful?00
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