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Category Search Results for:
Trees, Shrubs and Hedges

369 Total Found

Question: 1187-4314
I have a wisteria that has only given me 15 blooms in 15 years. How can I get more bloom? Michele, Willimantic, CT

Mort's Answer:
Sometimes juvenile vines do not bloom for six years. Your plants could use some 5-10-10 fertilizer. You should also soak the roots before the first frost this fall. This past winter was a difficult time for a lot of plants in southeastern New England. A long winter followed by a cool dry spring resulted in a paucity of flowers on butterfly bushes, hydrangea and many others. Wisteria need help to climb and like the sunshine. Pruning back skimpy shoots in the summer will help. If your plants are in the shade, consider cutting them back and moving them to a sunny location. Asiatic species, W.sinensis and W.floribunda, are the most prolific. Native wisteria are reluctant bloomers but need coaxing with high middle number fertilizers very five years. Visit themagicgarden.com/library, which has more than a thousand lawn and garden Q&As. See our video, "Newport in the Fall." on our YouTube channel.

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Question: 520-1511
Why are my Witch Hazels not blooming? They are very healthy looking. Two are in wet soil. Katherine, Upper Peninsular, MI

Mort's Answer:
Witch Hazel will bloom in the winter and is very hardy. Hamamelis mollis blooms in the winter with a yellow flower and red at the base. It will bloom later than H. japonica with the bright yellow flower and is hardy from zone 5 south. H.vernalis grows only to six feet but is only hardy in zone 6 south. H. virginiana grows to 15 feet has bright yellow flowers and like mollis is hardy in zone 2. Apply a handful to each plant 5-10-10 granular fertilizer this spring. You can use bonemeal for the wet soil plants to add phosphorus to your soil.

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Question: 502-1111
When can I cut back my Witch Hazel and Scotch Broom? My broom is about four feet and clinging to the ground. My Witch hazel is in bloom now. Linda, New London, CT

Mort's Answer:
Your Broom will bloom in May or June. You can cut about a foot off now. This will lessen the otherwise profuse yellow flowers. Cytisus scoparius has a crimson edged flower. Your plant can grow to nine feet. You should wait until late April to cut back your Hazel.

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Question: 159-5201
We planted yews this spring with the burlap intact. Since planting they have become increasing yellow with afew needles dropping. There doesn't seem to be any insects on them. What is the problem? Celina, Pawtucket, RI

Mort's Answer:
Quite often, the heavy burlap knot creates a water barrier between the new and old soil. It's a good idea to removerthe top of the burlap to eliminate the spongy quality of the burlap. Water is actually drawn from the old soil andcauses deprivation for the roots. Another possibility is that the yew was improperly dug and has fractured roots that have yet to heal. At any rate,I would advise the vendor of your problem. He will probably suggest waiting until spring to see, if the burlap was the problem.

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Question: 160-5201
One of my upright yews is turning yellow and dropping the leaves. My other yews seem fine. Any suggestions? Kevin, Attleboro, MA

Mort's Answer:
If there are rhododendron nearby and they are doing well, then we can eliminate weevil or root grubs. In this hot weather, there is a 99% chance that you have scale. On the needles near the stem, you will see tiny little helmets. Crush them with your thumb and a gray dust will appear. If it is squishy green inside, it is the buds for the new needles. I would spray with Kelthane as directed on package. Another product that has had good results and is organic is Neem. Neem or horticultural oil can be sprayed on in the early spring. Kelthane should be used on the mature scale now.

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Question: 161-5201
My Yucca filamentosa is very healthy but hasnšt bloomed. How can I get it to bloom? Linda, Searcy, AR

Mort's Answer:
Stay away from high nitrogen fertilizers.

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