I need to plant a large indoor plant is a planter without drainage. What can I do to prevent overwatering, i.e, too much water collecting in the bottom?
The best thing to do is put your plant inside a plastic pot with drainage holes that fits inside the planter. When it's time to water, remove the inside container, water, let it drain, then return it to the planter.
Kindly let me know especially for those plants who are placed indoor
Unfortunately, this depends on the exact plants that you would like to grow! Many plants will have different care, so knowing the types will be very important.
What I can do, for now, is to offer some articles on general houseplant care. These will help:
There is not yellowing on plants. I have also noticed nats in my home, this is new also. I water when soil feels dry to touch. I
This all sounds like overwatering, unfortunately! I would wait until the soil is, completely, dry down to about 1/3 of the way into the container between each watering. Fungus gnats do not like to be outside of the soil area, and are a sign of serious fungal infection, as this is what they consume.
Fungicides and changing soil and watering habits will correct the issue:
https://www.gardeningknowhow.com/garden-how-to/info/using-fungicides-in-garden.htm
https://www.gardeningknowhow.com/houseplants/hpgen/watering-your-houseplants-properly.htm
Measuring with a meter will be the best way to be completely sure of how much water the soil is saturated with:
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-moisture-in-plants.htm
What must be done to stop it?
Unfortunately, there are a lot of things that cause this, and many of them depend on the specific plant in question.
Generally, under/overwatering, underfeeding, too little or too much light (depending on the type of plant), too little or too much water, pests, and many other factors can cause this.
Unfortunately, without pictures or knowing the exact plants in question, I can not be of much assistance, here.
https://www.gardeningknowhow.com/plant-problems/environmental/plant-leaves-turn-yellow.htm
I have access to a grow tent and lights but what should I consider in setting this up. Obviously it will be easy to do lettuce, but what about tomatoes?
As long as you have a good 200 to 400 TRUE watts of light, you can grow tomatoes in a 4'x4' area, no problem. I do tomatoes and pepper all year long indoors, myself!
https://www.gardeningknowhow.com/houseplants/hpgen/what-are-grow-lights.htm
https://www.gardeningknowhow.com/edible/vegetables/lettuce/growing-lettuce-indoors.htm
https://www.gardeningknowhow.com/special/greenhouses/grow-light-terminology.htm
https://www.gardeningknowhow.com/edible/vegetables/tomato/growing-indoor-tomatoes.htm
I am a student at Ilford County, currently in Year 11 doing my GCSE DT NEA course. I have decided to make an indoor gardening unit for my project to help with overwatering and plant conservation. I believe that your expert input in the design process of my product would be vitally helpful and I would be very grateful if you can take some of your valuable time to answer some of my questions. My first question is concerning the most common houseplant in the UK. In order to design an indoor gardening unit, I'd like to know the most common houseplants to work out the required dimensions. My second question is, in your experience, what is the best material to design a product that can both house plants and store equipment? Would 2 different materials be necessary? My final question is concerning your client base. What is the average age group of your customer base? Thank you for taking your time reading my enquiries and I am eagerly awaiting your response.
We provide free gardening information on how to grow plants and how to troubleshoot problems. I'm afraid your questions are outside our realm of expertise.
What would you recommend for an indoor winter garden? I see good reviews for vivosun and vantiorango, but I don't know what works best for winter indoors.
We don't make product recommendations but you can grow a winter garden indoors with fluorescent lights. Here is how:
https://www.gardeningknowhow.com/houseplants/hpgen/plant-an-indoor-winter-garden.htm