Mini Terrarium
Many Venus flytraps are sold in mini terraria. These are usually small plastic domes which ensure a high humidity around your plant.
Advantages
- Ideal for situations in which your flytrap will be growing in a low humidity environment. Low humidity environments are harmful to Venus flytraps.
- Your flytrap will not need watered as often due to less loss of water from evaporation.
- Bugs can be placed inside the terrium where they can be caught ‘naturally’ rather than being placed directly into the trap.
Disadvantages
- Your plant will usually struggle to catch it’s own prey and need to be fed bugs.
- The terrarium can overheat if in strong sunlight.
- The enclosed environment can result in a lower concentration of carbon dioxide leading to reduced plant growth.
Make your own
You don’t need to purchase a terrarium, you can easily make one for free. All you need is a large soda pop/fizzy drink bottle! Cut the bottle in two and place it on top of your plant and voila, you have a mini terrarium 
If your plant is already in a mildy humid environment, you may wish to leave a small air hole, this will not increase the humidity as greatly as with a fully covered terrarium but will improve air circulation.
Image of egg terrarium borrowed from bitsandpieces.com.
Courtney responded on 25 Aug 2008 at 9:21 pm #
I am wanting to make a terrarium for my newly bought venus fly trap, but I don’t want it to be the only plant in it. What other plants can I put in the terrarium with the VFT.
Ryan responded on 04 Sep 2008 at 3:10 am #
Hi Courtney,
You can place anything in your terrarium which suits the same high humidity, warm climate that your flytrap likes. Just make sure that if they prefer a different type of soil that you keep them in separate pots.
If you want them to share the same soil, then you will need to find other plants which like low quality soil. Other carnivorous plants would be ideal for this situation as they all require low quality, low nutrient soil.
tommy responded on 04 Sep 2008 at 11:05 pm #
What is the best tempature and humidity level that the venus fly trap grows most vegarus in, i got it under a humidity dome like for cuttings and want temp. to be perfect?
Ryan responded on 16 Oct 2008 at 10:06 pm #
Hi tommy,
I’m not sure what the exact ‘optimum’ temperature to keep a Venus flytrap in is. It’s probably a safe assumption to aim for roughly the same temperature that they grow the best in nature in. They grow naturally in North Carolina, particularly in the Green Swamp, so if you find out the temperatures there then you could get a good idea of the best temperature to keep your plants at.
johny responded on 28 Nov 2008 at 3:20 pm #
Hello, I did the soda bottle thing, but now my plants are hitting the side and making them grow funny. Is there a bigger terrariums I could make/buy?
Ian responded on 07 May 2009 at 9:01 pm #
Can I put my VFT in a terrarium and in a dish of water like it sais on other sites?
dr green thumb responded on 17 May 2009 at 8:34 pm #
hi johny well yes i grow to sell tropical plants.i do it like this i take an ordanery box like a 24 beer pack.STAND THE BOX VERTICLY.Take a stanley knife and cut out the middles of the box leaveing a fingers width at all corners.Cut the top of the box make a neat straght cut then line the bottom of your box with tin foil stick down with duck tape and cover all the inside with duck tape.to make it damp proof.then take a sheet of polythene and put it over your cut holes dont do top then stick thiem down using duck tape making it air tight.now take another pice of cardboard a little bigger than your box top cut another window put your chosen matterial over duck tape it down and thair you are put plants in watter regularly and let some air in atleast once a day.feel free to email me at gamein@live.co.uk i sell plants but i dont mind giving addvice to those who ask.
Ryan responded on 19 May 2009 at 3:04 am #
@johny – The sky is the limit as far as terrariums go. You could even put them in a full-sized glass house.
@Ian – Yes
mckinle responded on 21 Jul 2009 at 3:11 pm #
DONT BUY THIS!!!!!! I BOUGHT 3 AND NONE HAD ANY SEEDS!!!!! ITS A WASTE OF MONEY! FIND ANOTHER ONE. oh and if you do buy this it is only an inch high. is basically is an Easter egg filled with dirt