Q.Nectarine Leaf Problems - I have used Neem oil on the leaves one time and there is a large amount of leaves that look ...
A.It sounds like your tree still has an aphid or mealy bug infestation judging by the presence of ants and black sooty mold. Neem oil kills only pests present on the day they are sprayed, so applications may need ...Read MoreQ.Do Satomi Kousa Dogwood Bracts Start Out Pink? - We bought a Satomi Kousa dogwood and the young bracts are white. Will they turn pink or is the tree ...
A.The bracts should be pink to red in color. However, I did find the following nugget on a university web page that might explain your white bracts - environmental conditions do sway bract color: "'Satomi' (also listed as 'Rosabella') - This ...Read MoreQ.Dracaena Plant - I have a Dracaena plant with pale cream leaves. I have left it outside and the leaves have curled and ...
A.When it was outside, was it in the direct sun? Dracaena do best when placed in bright but indirect light. Try to avoid placing them in full sun as it will burn the leaves. The soil of a dracaena should ...Read More
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Q.Shallots Are Soft - My shallots have gone soft after the cold weather. Will they recover or do I start again?
A.Most likely the shallots will not recover from being frozen. I would recommend removing and starting over. I have suffered this issue in past years myself with late spring cold. https://www.gardeningknowhow.com/edible/vegetables/shallot/tips-for-growing-shallots.htmRead MoreQ.Weed And Feed On Newly Sown Grass Seed - If I spread weed 'n feed fertilizer on patches in my lawn where I have spread grass seed, will the ...
A.You are correct in that weed & feed might prevent seed germination. It is recommended to wait until your new grass is well established and you have mowed it a minimum of 4 times (usually 6 to 8 weeks) ...Read MoreQ.Hibiscus Not Flowering - I grow hibiscus in summer and bring them in the garage for winter. I live in Ohio. When I bring ...
A.Have you fertilized? They need nutrients to form buds. Are they receiving adequate sunlight? Hibiscus need plenty of watering to produce blossoms. Here are a few articles to review Hibiscus care. https://www.gardeningknowhow.com/ornamental/flowers/hibiscus/how-to-care-for-hibiscus-plants.htm https://www.gardeningknowhow.com/ornamental/flowers/hibiscus/hibiscus-fertilizing.htmRead MoreQ.Purple Fountain Grass Growth - Our purple fountain grass was planted in mid-December. When will we see new growth appear from the ground? We live ...
A.I would give it some more time. Warm season grasses begin to grow much later in the spring as air and soil temperatures increase. For more information on pampas grass, please visit the following link: https://www.gardeningknowhow.com/ornamental/foliage/pampas-grass/growing-pampas-grass.htmRead MoreQ.Overrun By Aquilegia - I have recently moved into a cottage with a beautiful but neglected garden. The vegetable plot has not been worked ...
A.I wish I could come get a few plants from you! With that being said, perhaps a local garden club could help you remove the plants. Many gardeners would be thrilled to receive free plants for the price of digging ...Read MoreQ.Fertilizing Magnolia Trees - I live on the South Carolina coast in zone 8. I have a large (50-60 ft) magnolia on the property. ...
A.How long has this flowering issue been happening? The buds of magnolias are very sensitive to extreme weather - did you have a frost that could have damaged your magnolia's buds? Thrips can also be to blame as they like ...Read MoreQ.Sulphur Treatment For A Mango Tree - My tree seems to have a mildew disease. I have some 80% sulphur but please can you tell me how ...
A.According to my research, you can mix 4 tablespoons of wettable sulfur powder per gallon of water in a pump sprayer/spray bottle. Source: http://homeguides.sfgate.com/kill-powdery-mold-vegetable-plants-92349.htmlRead MoreQ.Can A Lime Tree Regrow Itself From Old Rootstock - I cut down a Lime tree 5 months ago and also removed many roots. This week after some heavy rains, ...
A.Those are sucker sprouts from the roots. As long as you remove these suckers as soon as they appear they will not produce enough carbohydrates to feed the roots and no more root growth will occur.Read MoreQ.Some Of My Shallots Have Gone Soft - I have planted them in 10 litre pots. They are outside since middle of February. what can be the problem.
A.Have you had cold weather? It sounds to me cold damage, that they may have been exposed to a freeze. Over watering without proper drainage would also be a concern. Here is a link about the proper care of shallots. https://www.gardeningknowhow.com/edible/vegetables/shallot/planting-shallot-sets.htmRead MoreQ.Magnolia Has Not Flowered This Year - Our magnolia has not flowered this year for the first time. It has one or two flowers on it. Last ...
A.Weather factors may have played a part in bud formation. There is very little we can do in that situation. Proper watering and soil corrections can help assure your tree a good growing season ahead and recharge for next year. https://www.gardeningknowhow.com/ornamental/trees/magnolia/caring-for-star-magnolia-trees.htmRead MoreQ.Rhubarb Flowering - I have one rhubarb plant which is from UK. I live in SW Romania, which is a lot warmer. The ...
A.The recommended means of propagating rhubarb is by division – instructions on how to do so are found here: https://www.gardeningknowhow.com/edible/vegetables/rhubarb/dividing-rhubarb-plants.htm You can try propagating by using the seeds, but I read that the seedlings rarely resemble the parent plant since most rhubarb ...Read MoreQ.Neem Oil For Valotta Lily Bulbs - Can Neem oil be used to dip Valotta lily bulbs in for transportation? We have Valotta lilies and are transporting ...
A.From my research it can be used as a dip or spray on the bulbs. Allow them to dry throughly on paper and roll so all sides are dry. Here is a link with proper Neem Oil use information. https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htmRead MoreQ.Dieffenbachia Stopped Growing - I bought a dieffenbachia in March. It had six leaves on it but now it has only three and it ...
A.The pot looks quite large. You mention watering once a week. Do you check by feeling the soil if it is wet, or just water every week? I think the plant may be waterlogged. I would recommend repotting ...Read MoreQ.Pruning White Cherry Blossom Tree In Full Bloom - Should a white cherry blossom tree be pruned in full bloom? Our council workers are going to hard prune a ...
A.The short answer is no - the blossom will soon be over and then the tree can be pruned quite safely, but not too hard! Henry VilliersRead MoreQ.Can A Gardenia Do Well In NJ? - I have a very large plant and I want to know if I should put it outside for summer and ...
A.Gardenias will grow outdoors in USDA plant hardiness zones 8-10. Most of New Jersey is in zone 6, so your gardenia will not survive outdoors year-round. You can put it outside for the summer but you must bring ...Read More