General Cultivation Q&A

Hey Guys, Am growing Big Bud under a 600w HPS temp is approx 24c and humidity is 40% suddenly my plants are yellowing from the bottom up with the leaves going yellow from the inside of the leaf then dying have included a photo any help would be awesome.

I found some seeds in a film canister and decided to start growing. not sure what they are. these seeds are most like years old from back when my dad used to grow. They are at the end of the 5th day in the paper towel and nothing has happened to the 10 seeds except for two, these two haven't cracked down the side of the seed the have just popped, they just have a hole in them and are pretty much empty. Are these seeds buggered or is there hope? thanks.

Hi all Many people have been telling me to add perlite to my potting mix but just recently I have been told its not a good idea. Here is what they said they said: “All composts are made to have as near as possible correct air and water holding capacity, adding things that make it drain faster and hold more air mess it up big time for plants like cannabis and it reduces the fertiliser reserves, ie makes it weaker. Cannabis is a greedy plant that likes plenty of food and does best in compost that has good water retention, in fact once in final pots the addition of water holding crystals can be a big advantage, especially when its hot in the summer, thats the absolute o…

Can other OZ Stoners see what I have written down in the community calendar?....or only the Admin staff ?

when is the best time to use or can you use through out the grow

I have several Bubblegum in 1 litre pots in soil under 38 watts growlux fluro in a cardboard stealth grow box. they are at day 23 now. see pic below. I want to take clones in 5 days time. Can I take the top 3 inches offa the plant and use that as a clone since the plant is only 12cm tall(5 nodes) at moment?...

I will be starting my first hydro grow within 2 months. lotsa lurking and learning over the past 3 months.. I plan on having four 25L containers in one square metre. one plant per container. A 1900L/hr airpump with four outlets for the four containers. A 600Watt HPS light. A 150mm centrifugal fan with odour sok. I need to know the size my controller bucket should be relative to individual bucket size...if possible is there a formula?... like there is for water resevoir (water reservoir should be same as total system capacity)... the range I am thinking of at moment for controller bucket is from 25L to 100L.... any comments appreciated.. I have been thinking abou…

looking at putting couple auto pots in spare shower. Would the fan in ceiling, open window and oscaliting fan be enuf for a 400w hps??? (might panda the 2 sides of shower other 2 are white tiles, and leave the door lil open for tha fan while lights on) hit me up some advice, ta.

So id love to hear from experienced growers regarding weather or not i should cram my 4 x 4 space (using a 400w) with several plants, or maybe just grow 6-8 plants inside. Which method should yield the most? I crammed about 20 in this grow but many buds didnt fill out as thick as i would have liked, still waiting while drying to discover the total amount. Thanks again.

What should it be for Veg and Flowering ? I am using Dutchfest at the moment in Bloom and the label says it should be 2.0-2.5 EC ,, but I am only getting a reading of 1.8 EC . This is at full strength .

hey guys cant find any molasses in amongst shops in me local area so i was hoping some1 here knows a good supplier.. and even better can tell me the best and easiet way to use it... i want to use it as a carbohydrate and add threw out flowering will the application of this fuck with the groove of me mixed nutes? do i mix in and water with nutes? or do i apply seperately?? all help is appreciated guys stuff like carbo load from advanced nutes are simply mollasses i believe id like to find a cheaper alternative to carboload thanks guys bil

Im using a SUNON HYDROPONIC FAN 120MM and am wondering if a 250mm duct joiner will be suitable for my box.i will be using a 250mm ducting and 250mm odorsok carbon filter.Is this fan the right one i should use?And how do i connect the duct joiner to the side of my growbox?Pics of the fan and duct joiner below.

I want to make a grow fridge or closet and i was thinking i might just use 6 48w natuaral white fluoro`s,an intake fan and exhaust fan.Have a look at the quick pic i drew to give you a better idea what i mean.I would just use one 400w hps light but im worried about the electicity bill being to high and also the elec company relizing that im growing pot because of the hours i have them on for.Im not trying to grow ounces and ounces,just for personal use.I have a small fridge that i have cleaned out and was going to use that but i think it might be to small.It is about 4ft high and 2ft wide.If its to small i might go with making a box up that a little bigger.Any advice will…