Q.Have My Agapanthus Been Poisoned? I’m Renting And These Were Already Here. I Don’t Particularly Like Them But I Recently Had A F - alling out with someone who is known for doing this. They were really healthy a week or so ago. I'd ...
A.It is hard to say whether it was poisoned. Herbicides don't easily penetrate agapanthus' waxy leaves, and they are usually ineffective. In deciduous varieties, Agapanthus leaves do naturally turn yellow and die back but it takes more than a week. ...Read MoreQ.Can One Kill Weeds Over Growing Ajuga Ground Cover? - Didn’t get my weeds pulled around my patio this year. Will they just die and go away for next year ...
A.Annual weeds will die out but come back from seeds if they are allowed to form. It looks like you have the perennial Indian or mock strawberry, which will return. The only herbicide you can spray on ornamentals are products ...Read MoreQ.I Have A Very Healthy Large Brunnera (not A J. Frost) That Does Not Bloom. It Buds But Then They Do Not Open. Any Ideas? - The plant faces East and is near 2 large trees. Other brunnera on my property do just fine.
A.Are either of the trees a black walnut tree? If so, the brunnera may be intolerant of juglone. There also is such as thing as bud blast, when buds form but then die. These articles should help: https://www.gardeningknowhow.com/plant-problems/environmental/bud-blast-in-flowers.htm https://extension.psu.edu/landscaping-and-gardening-around-walnuts-and-other-juglone-producing-plants https://www.gardeningknowhow.com/ornamental/flowers/brunnera/growing-brunnera-plants.htmRead MoreQ.My Cactus Has Been In The Shade On The Front Porch For Several Months. Can I Move It To A Semi Shade Plant Stand Now That Its Gett - ing cooler here in fla I have 3 healthy christmas cactus is it time to. move them from the shaded ...
A.You can leave them where they are. The cooler temperatures, along with the shorter days, will cause the buds to set. Here is more: https://gardeningsolutions.ifas.ufl.edu/plants/houseplants/christmas-cactus/christmas-cactus-preparation/Read More
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Q.Can You Plant The Seeds On The Plumes To Get More Plants? I Live In A Tiny Apartment, So I Was Wondering If I Could Put My Purple - fountain grass in our laundry room which is heated? Live in Zone 5.
A.The seeds are likely sterile (or if they did germinate, probably would not look like the parent.) You can divide it to make more plants. You can cut the plant back and overwinter it indoors in your laundry room. Just ...Read MoreQ.Morning Glory - I live in California and recently spent time on the Greek is,and, Corfu. My rented home had remarkable BIG morning ...
A.There are wild morning glories in Greece you may have seen, also called Blue Dawn flower, Ipomoea indica, that are blue purple. It is considered very aggressive, however. There also is a wild, white morning glory in Southern California (not ...Read MoreQ.Hydrangea Macrophylla - I just moved to Delaware, zone 7. I inherited a hydrangea macrophylla 3 months ago. It constantly gets dark brown ...
A.The macrophylla hydrangeas prefer morning sun and afternoon shade. You may need to water more if it is in full sun. Morning shade will help. It's very hard to prevent the brown spots. Things you can do include picking up ...Read MoreQ.Growing Garlic - I live in northern Pennsylvania and it gets very cold/freezing here. How is garlic successfully watered when ground is frozen ...
A.Plant at least three weeks before the ground is frozen and water regularly till the ground freezes so roots can develop. Be sure there are several inches of mulch on top of the planting to protect the bulbs and prevent ...Read MoreQ.What Can I Do About Lichen On Yew Hedge Which Is Killing Branches - Have cut out dead branches & sprayed with fungicide but lichen is spreading
A.Lichen would not kill the branches so it must be something else that is causing the demise, such as insects or a disease. If you see webbing in the shrubs, they may have spider mites. Spray the shrubs well with ...Read MoreQ.Calla Lilies Do They Need To Be Brought In During Winter - if i plant callas in a large non working fountain its just for deco and above ground should i bring ...
A.Calla lilies are hardy in zones 8 to 10 but sometimes will overwinter in zone 7 if heavily mulched. Since the fountain is above ground you should bring them inside for the winter. Here is how: https://www.gardeningknowhow.com/ornamental/bulbs/calla-lily/calla-lily-winter-care.htmRead MoreQ.Why Are My Newly Planted Wax Myrtle’s Dying - Their leaves are turning yellow and then brown im in east texas
A.It could be too much or too little water. They symptoms are often the same. When first planted, they need a lot of water to get established. You may want to contact the place you bought the plant, they may replace ...Read MoreQ.Norway Spruce Problem - Hello, Please help me to identify the problem with my Norway spruce. Thank you. Olga
A.It looks like spruce galls caused by an insect. They can be pruned off or you can use horticultural oil treatments at correct times. These articles will help: https://extension.illinois.edu/sites/default/files/plant-clinic-report-spruce.pdf https://purdueplantdoctor.com/factsheet/tree-224 https://extension.entm.purdue.edu/publications/E-56.pdfRead MoreQ.What Variety Of Arborvitae Are These Cedars - Am looking to purchase these cedars and need to confirm arborvitae type. Thanks!
A.There are too many varieties to identify one from a photo, but these articles may help: https://plants.ces.ncsu.edu/plants/thuja-occidentalis/ https://www.gardeningknowhow.com/ornamental/trees/arborvitae/growing-arborvitae-trees.htm https://www.gardeningknowhow.com/gardening-pros-cons/arborvitae-pros-and-consRead MoreQ.Cotinus Propagation Via Cuttings - How long should I wait for the roots to start growing? I followed the directions on your website (thank you) ...
A.When new growth is apparent you can check to see if roots have formed. If so, you can remove the bag. Here is more: https://edis.ifas.ufl.edu/publication/ST207 https://www.gardeningknowhow.com/garden-how-to/projects/rooting-plant-cuttings.htmRead MoreQ.Help Identifying Plant Disease - I'm wondering if you can help me identify the plant disease I'm dealing with and assist with how to deal ...
A.It looks like blossom end rot. Treatment is the same for tomatoes and eggplant. These articles will help: https://www.gardeningknowhow.com/edible/vegetables/tomato/tomato-blossom-rot.htm https://homegarden.cahnr.uconn.edu/2025/06/15/blossom-end-rot/Read MoreQ.Milkweed - I live in Massachusetts. When can I safely cut back common milkweed so not to destroy any monarch eggs etc.
A.Wait till after the first couple of freezes to be sure no caterpillars are still on the plants. Eggs and caterpillars won't survive a freeze. You also can wait till spring to cut back what doesn't die back. Here is ...Read MoreQ.Do I Need To Do Anything With My Walking Iris Bloom Stems - I have a huge walking iris that finally bloomed this year. It has tons of bloom stems that are hanging ...
A.If the plants are grown in the ground, the plantlets take root when they touch the soil. Since yours are hanging from a basket, you can leave them aloft or cut them off and replant them. Here is more: https://www.gardeningknowhow.com/ornamental/bulbs/walking-iris/walking-iris-plants.htm https://www.gardeningknowhow.com/ornamental/bulbs/walking-iris/transplanting-walking-iris.htm https://gardeningsolutions.ifas.ufl.edu/plants/ornamentals/walking-iris/Read MoreQ.Red Montbretia Lucifer Crocosmia - I accidentally got rid of a red montbretia lucifer crocosmia that my wife liked and have planted some new seeds ...
A.Did you plant seeds or corms (similar to bulbs)? Seeds can take years to bloom and may look different from the parent plant. Corms should bloom the next year after planted. Seeds can be planted in a container and protected ...Read MoreQ.Orchid - What does it mean when a bulb is starting to bloom but falls off
A.It can be caused by many things such as lack of humidity, improper watering, insufficient light, and more. This article should help: https://www.gardeningknowhow.com/ornamental/flowers/orchids/orchid-buds-dropping.htmRead MoreQ.Do I Need To Scratch My Mint And It’s Soil? - My pothos, snake plant, and spider plants and soil fell into my raised mint garden. Tried to get all the ...
A.Rinsing the mint leaves well before consuming should be fine. You also can add a bit of dish soap to the water and swishing the leaves well through that if you are worried. Pothos and snake plant leaves are toxic ...Read More
