Q.Hibiscus Tree - I have a beautiful hibiscus tree that is probably 12 to 15 years old and doing well. However, the past ...
A.Yellow leave can indicate that there is an iron issue, but I would think that overall the plant likely just needs some general fertilizer. If possible, have the soil at the base of the plant tested and then, if the ...Read MoreQ.Pennisetum Alopecuroides ‘Hameln’ Dying In Winter - Is anyone else in Zone 7 having issues with Hameln surviving the winter? It is not specific to Hameln, as ...
A.Without knowing exactly where you are in zone 7, I am going to guess that you had a rather up and down winter like many parts of the country in terms of weather and temperature. If this is the case, ...Read MoreQ.Will A Mesquite Tree Die If The Leaves Fall Off? - We've received an unusually high amount of rain this spring and I just noticed that most of my mesquite tree's ...
A.Yes, the heavy rains can stress the tree or even worse. Watch for further issues as in the article below. https://www.gardeningknowhow.com/plant-problems/environmental/excessive-rain-on-plants.htm https://www.gardeningknowhow.com/ornamental/trees/mesquite/growing-mesquite-trees.htm Read MoreQ.Braided Hibiscus - We just purchased a Braided Hibiscus in a 2.5 quart pot at Lowes. What size pot should we put our ...
A.Choose a pot only 1 to 2 inches larger then the pot it is in now. Here are links to help you with your new tropical. https://www.gardeningknowhow.com/ornamental/flowers/hibiscus/hibiscus-container-care.htm https://www.gardeningknowhow.com/ornamental/flowers/hibiscus/how-to-care-for-hibiscus-plants.htm Read More
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Q.Can I Cut Poppy Plants Back - Can I cut Poppy plants back after deadheading? My Poppy bed is very unruly and messy. Will it hurt or ...
A.https://www.gardeningknowhow.com/ornamental/flowers/poppy/growing-iceland-poppies.htm https://www.gardeningknowhow.com/ornamental/flowers/poppy/growing-california-poppy.htm I have a friend who trims them back right after they are done blooming. She also digs them up at that time and will move them or pass them on to a friend as her bed is full and ...Read MoreQ.Sago Palm - My Sago Palm did not produce fronds this year or a cone. I cleaned it up and got rid of ...
A.Your sago palm may have been putting more energy into flowering this year and that may be why it did not produce new fronds. The flower will eventually fade and you may not see one again for several years. Sago ...Read MoreQ.Wisteria - We have had a beautiful flowering white Wisteria for about 15 years on a roof terrace planted in a ...
A.It sounds like you may have a mite problem, most likely spider mites. Not all insecticides will treat mites, so make sure that what you are using to spray the plant contains a miticide. This article will help you learn ...Read MoreQ.Japanese Lilac Care - I have a very healthy Japanese Lilac tree. Each year after blooming, the flowers turn dark brown and become unsightly ...
A.It is neither helpful or harmful to deadhead your lilac after it blooms. As the blooms are unsightly, I would go ahead and remove them once the flowers have faded.Read MoreQ.Zinnia Pests - What creature eats ZINNIAS?
A.There are many different pests that will eat zinnias. Can you please describe what the damage to your plants looks like? That will help us with IDing your pest.Read MoreQ.Night Blooming Cactus - After the night bloom, when the petals close and become black, even though the stem is still green where it ...
A.You can either leave them on to fall off naturally or snip them off at the base of the flower. Either is fine and will not harm the plant.Read MoreQ.Super Sugar Snap Peas - My Sugar Snap pea plants are now about 5 feet tall. But with this very unusually hot weather (95+ degrees ...
A.If the high heat does not persist, the plant will produce side shoots. But if the heat continues and you see the whole plant start to yellow, then the plant is lost and you should start over when the temperatures ...Read MoreQ.Watermelon - What can I do about Fusarium wilt? My watermelons seem to have this fungus.
A.Rotating crop beds is one of the most important things you can do to prevent fusarium wilt in the future. Since the disease is already on your plant, there are fungicides and fumigants that you can use WITH CARE ...Read MoreQ.Trumpet Vine - My good friend gave me three pieces of trumpet vine with the roots she dug up. She placed them ...
A. The cuttings that you root should be cut to about 4 inches in length. Dip in rooting hormone. 2 inches of the stem should be placed in planting medium. Cover with a plastic bag and place the container in a bright location out ...Read MoreQ.Transplanting A Young Magnolia - How close can a magnolia be planted to a house foundation? I have a spot about four feet away. Is ...
A.20 feet is a recommended distance from a homes exterior. https://www.gardeningknowhow.com/ornamental/trees/magnolia/are-magnolia-roots-invasive.htmRead MoreQ.Squash - Plants look healthy and are being pollinated, but no squash!
A.Sometimes squash gets going a bit slow and it will seem like you have tons of blooms but no squash forming. One year I went for weeks on end with no signs of squash, and then finally toward the ...Read MoreQ.Passion Flower Bud Drop - The buds of my passion flower are falling off prematurely. Any tips? I have the plant on the west side ...
A.Wind could be a factor. Watering conditions, to wet or to dry could also be a cause. Did you give it a good balanced fertilizer feeding this spring? Here is a link about the care requirements. https://www.gardeningknowhow.com/ornamental/vines/passion-flower/passion-flower-care.htm Read MoreQ.Cutting Back Gardenia - I have 2 Gardenia plants that are at lease 40 years old.They had been pruned yearly until about 4 years ...
A.I would not cut it to the ground in one year. This will surely kill it. But, to rejuvenate it, I would recommend thinning the shrub out by 1/3 each year for 2-3 years. Each year, cut out the 1/3 ...Read MoreQ.Tent Caterpillars - How do you kill tent caterpillars? Our hospital is crawling with them.
A.This article should have some suggestions to help: https://www.gardeningknowhow.com/problems/pests/tent-worms-tent-caterpillar-home-remedy.htm Read MoreQ.Mandevilla, Sun Parasol Crimson - I am having a problem growing the mandevilla in the ground. Is this plant an acid loving plant? They die ...
A.Most likely, it's the sunlight that's affecting them. These plants resond better to filtered light or shade rather than full sun, especially in the afternoon when it's more intense. If possible, you may want to relocate them or in the ...Read More