This is the time of year when many raising red worms will find it difficult and find their worms are dying off. This can easily be avoided if you take precautions when raising your red worms.
Seasonal changes affect the way one raises their red worms. When winter arrives we concentrate on keeping our red worms warm. It is much easier when raising red worms to keep a worm bin warm than trying to keep it cool enough during the warmer months.
Moving from the summer through fall and into winter is actually easier since even though the temperatures drop, so does humidity. Once summer arrives the humidity rises in most parts of the country which can make your red worm bin become an oven similar to roasting a roast.
Even if you live in areas such as Arizona where the temperatures are hot but the humidity remains low, remember your worm bin has trapped moisture within it, hence creating humidity within the worm environment.
Another reason why it becomes easier to raise red worms during the cooler months is the fact many are composting by throwing in loads of food scraps such as vegetables. This helps to heat up the worm bin which works fine during the winter.
During the transition from winter to spring, things begin to heat up. While adding plenty of nitrogen rich, green products, such as leftover vegetable scraps work well during colder, drier months, this can prove detrimental when transitioning from winter to spring into summer.
Raising red worms and transitioning from winter to spring can be relatively simple if you approach it properly.
Start by making sure your worm bin does not have too much moisture. Moisture and heat do not mix when it comes to raising red worms. A soil moisture meter can be purchased at most hardware, home improvement and even discount stores this time of year. A good year round moisture percentage to maintain is 60% to 70%.
I know many people purchase a worm farm of one sort or another offering a spigot at the bottom by which is advertised to produce worm tea. First, this is not worm tea but rather leachate, which can be anaerobic and detrimental to your worms. Leachate can be full of detrimental anaerobic microbes rather than beneficial aerobic microbes hence why landfills for example need to build retainers to catch the leachate to prevent run off into local soil and drinking wells. If you are producing liquid within your worm bin this time of year as well as during the summer months there is a good chance you will kill off your red worms.
To reduce the heat within your red worm bin, slow down on the green products and begin adding more brown which are carbon products. Carbon products consist of shredded newspaper and cardboard for one. These products will not generate nearly as much heat within your worm bin as green products do. At the same time they do not increase the moisture content but rather absorb it. Green products not only generate heat but also produce moisture content.
Certain vegetables produce more moisture than others. This is a good time of year to avoid melons and vegetables such as cucumbers for a while.
If you are raising red worms in a garage or basement that becomes hot during the summer months, now is the time to start thinking about where you can move them to. Garages that reach even 80 degrees Fahrenheit will end up cooking your worms as the internal temperature of the worm bin will exceed this.
Think of a sauna and how the steam literally heats up within the room and makes you hot. The same holds true when raising red worms within the worm bin and the heat and moisture content builds up within.
If raising your red worms outside, now is the time to find a nice shady spot for them if you have not done so already. Direct sun on the worm bin will bake your worms quickly and leave a foul odor.
Heading these precautions will save you and your red worms much aggravation and are the same guidelines used at Red Worms For Sale worm farm to insure healthy red worms. For additional information on raising red worms, be sure to sign up for the Worm Composting Newsletter!




I have registered for Ask the Worm Expert, on the 13th of May. I got the welcome email that thanked me and said the Board Admin. would need to OK me. That has not happened. How long does it take? I would like to particate and ask some questions.
Please help me.
Respectfully,
George A. Daniels
Worms N Things.
George
Sorry for the delay… as per our telephone conversation this has been rectified….
I have the Worm Expert discussion forum up to date and planning to keep it this way!
Bruce
I disagree with the statement of a garage that is 80F will cook your worms. My garage is uninsulated and reaches temps lately of 97 to 101F. The bedding temp is 84F and that is the top 5 inches so I’m guessing it’s lower than that deeper down. The worms are eating just fine. You have to take in account that the bedding material and the depth is insulating the bin or bed. For example I have been working in a small metal building with an A/C running 24/7 and I was sweating with 90F weather. I recently added insulation to the same building with the same A/C and now with temps around 95 to 100F it is a comfortable 75F.
Michael
You are partially correct…. Allow me to explain.
The bedding material does not fluctuate as quickly as the surrounding air temperature, so yes your worm bin is cooler for now.
However as time passes on it will warm up and eventually become a sauna on the worms hence cooking them.
The same would hold true for the bedding temperature when it cools down in the fall and winter. The air temperature may go below freezing for a day or two but the bedding would take longer to reach the same temperature.
Bruce
I still disagree. I have been raising worms for years in my uninsulated garage in Georgia with no worm deaths. The temps in Georgia near the summer and the summer are regularly 90 to over 100F(three weeks straight of over 100F last summer) for extended lengths of time not to mention the high humidity. It has been in the upper 90′s for the last two weeks and is supposed to hit 100F today and tomorrow. I also pushed my thermometer down another 1 inch and bedding temps dropped by 5F which would be 79F. So with what your saying my worms would die every year which is not the case.
Michael
You are not taking into account that the temperatures are dipping down to around 70 degrees at night, hence a cooling off period. If you took the average say 95 high for the day and 70 degrees for a low at night, basically you are an average temperature of 82.5 degrees, which basically falls into the temperature range of your worm bins.
At the same time many folks end up with cooked worms in there garages over the summer time. If you have good air movement, this will help to protect the worms. Throw a lid on top with a few holes and no moving air, the worms will bake:-)
Bruce
Well I can agree with that. I take it we can now agree that a garage that reaches 80F does not automatically mean that your worms will die unless it’s a cold loving worm like for instance Canadian Nightcrawlers but EF’s(redwigglers), EH’s(European Nightcrawlers) and EE’s(African Nightcrawlers) will do well.
I also agree that some folks will kill their worms this summer for a number of reasons. Some will take small plastic containers with very little bedding, overwater them and leave the lids on which will be a death trap. I could list several more reasons but I would have to write a book.lol