I have an indoor garden, with grow light. There are tiny white flies all over my 3 mint plants, barely visible unless I bump the table and they all fly upwards. Mostly they stay attached to the bottom of the leaves. They kill the leaves, and there is a clear sticky substance all over some of the plants and on the table, which I have never had before. Even the other plants - parsley, Vietnamese coriander, French thyme - have stick stuff on them. The flies seem to mostly like the mint. How do I get rid of these flies without killing my precious 3 mint plants?
Whiteflies will definitely eat the sap of your plants. Fortunately, there are many things that you will likely have in your kitchen already that will take care of this issue. This collection of articles will help: https://www.gardeningknowhow.com/special/organic
Dear Sir, I bought mint plant (in small pot) from supermarket and used the leaves, then I place the plant in front of a window everyday and watering it. the small tiny leaves started to grow, but then it dry quickly before increasing in size and fall to the soil. still there is new leaves are showing to grow but won't continue to become large in size. some of the stems dried and the tip of each step in the pot also dried. can you help me?
I suggest more water. It may not be the solution but it looks like your mint plant is dry.
huge chunks of the leaves are missing, I think maybe it is a slug or something but I haven't found any in the leaves or the planter box. This is my second attempt at mint because the first lot was completely destroyed by the mystery bug. I have successfully grown coriander, parsley, chives, rosemary, thyme, oregano and sage but my mint keeps getting eaten. Any advice would be greatly appreciated
It's quite possible a slug or snail issue, but they usually feed at night and harbor in out of the way places during daylight hours do you may not see them.
Confidor is an insecticide primarily for sucking insect pests and won't have any control effects on snails or slugs.
https://www.gardeningknowhow.com/plant-problems/pests/insects/kill-garden-slugs.htm
Can I plant mint directly in to a bed, or will it run rampant?
No matter where you are, you can prune mint at any time of year. This plant is so invasive that it will not hurt it to prune. It will come back even more vigorous.
I do not recommend ever putting mint into ground anywhere that you do not want it to take over. It will, and it will likely choke out any plant that you have planted. Stick to containers with mint, unless you have an established raised bed just for this purpose.
I see references online, but have not been able to locate a seller in the USA. Or perhaps a gardener who would be willing to share/sell a few plants. Any help to find some would be appreciated.
Do a Google search for the plant. Also try Ebay and Etsy, they are often good places to find more unusual plants.
I found some sellers by searching for this term, "Mentha x smithiana". Give it a try.
alternative for ground cover in my butterfly garden?
Orange mint, just like other mints, is aggressive in the garden and can take over. It could be contained in a pot that is sunk into the ground. Since it's a butterfly garden, you can tuck in low growing annuals/perennials that are also butterfly attractants or hosts. For example, parsley, marigolds, sweet alyssum, verbena, viola, passion vine. Groundcovers such as ajuga, hardy plumbago and creeping sedums aren't too aggressive.
You may want room for your bee balm to reseed and milkweed to spread, so you may not want any groundcover. Plus too many plants all will be competing for nutrients from the soil and water. Mulch will prevent reseeding, but if you aren't looking for that, mulch will help regulate temperature and retain moisture among your perennials.
Here is more information:
https://www.gardeningknowhow.com/edible/herbs/mint/growing-orange-mint-herbs.htm
https://www.gardeningknowhow.com/garden-how-to/gardening-by-zone/zone-5/butterfly-gardening-in-zone-5.htm
https://www.gardeningknowhow.com/garden-how-to/gardening-by-zone/zone-6/zone-6-ground-covers.htm
Yes, in your zone it will become absolutely invasive. I would recommend keeping them in container, and trimming the flowers before they get a chance to seed.
Allowing mint out of container in your area will result in a rampant invasion over a short span of a year or two.
Should you end up having a rogue mint escape, this article will help you with their control, and offer information on alternatives to planting in ground: https://www.gardeningknowhow.com/edible/herbs/mint/invasive-mint-how-to-kill-mint-plants.htm