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14 messages
11/01/2014 at 21:36


We have had our greenhouse for over a year. It has been utilised a lot this year! What is the best way to clean the panes and to make sure ready for new seedlings. I have heard a sulphur candle is good to kill bugs and fungus.  Does anyone have any experience of using these? Or is it best just to use dilute Keyes fluid?



11/01/2014 at 23:24

I just use bleach once per year (September or spring) inside. I do wash the glass (perspex for me) whenever it needs it. Sulpher candle works if you have had problems. You need to remove everything from the GH first.

11/01/2014 at 23:51

Sad to say.  Yours truly is/was a professional in the horticultural world.  OK. All the clinical aspects are OK, whilst some organisation is picking up the tab.  Lets be honest. For most of us.  A tiny greenhouse in the back yard.  Possibly nothing more than an eight by thirteen.  Really not large enough to house tropical pals etc.  In fact, the basic greenhouse is now't but an over size cold frame.  Lets go through the average season.  Winter.  Pots apear to be emty, some odd plants still have leaves etc.  Thankfully most of the bugs etc have gone tgo sleep.  The sudden re-awakening when everything starts to grow.  Out come the sprays, zapping the green and blackfly, then that enemy the lily beetle has to be dealt with, also soild borne enemies.  You name it.  There is a spray to deal with it.  All of these sprays etc come into contact with the greenhouse interior.  The main problem within the glass is.  Rubbish.  Keep the grond space tidy.  Make sure that the unused pots are clean and free from soil remains..  Believe me.  You can very easily become victime to the commercial word,  Use your over-sized coldframe to its best.  So, propagate, prick out, pot on etc.  Outside. Your plants are going to face more problems.  Yet take a look around.  We are surrounded by a wonderful natural world.

12/01/2014 at 11:36

Thanks Blair's and Mike Allen. Some good advice. 

12/01/2014 at 11:53

I usually use hot soapy water with a touch of bleach in and try to do it twice a year in the autumn and again in the Spring before it starts filling up with seedlings. The soapy water gets rinsed off with a power spray. Never had any major infestations and haven't used a sulphur candle.

I also wash down the potting bench and wash all my pots.  

12/01/2014 at 12:38

Fab, thanks Zoomer44. Will be spending next weekend on a massive greenhouse clean to get it ready for the spring .


12/01/2014 at 12:54

I used a garlic candle to fumigate as you don't need to take any plants out.  You can just use warm soapy water to clean inside and out.  You could use Jeyes fluid but it really stinks and you have to rinse it off because it's toxic.  I use an extendable window squidgy thing for outside and on the reverse is a window blade for getting excess suds/tree debris off.

12/01/2014 at 12:55

I have an apricot growing in the g/house, so just used water to clean it with and make sure all pots and trays are well scrubbed in hot soapy water.

12/01/2014 at 16:14

Thanks Mrs G. I had never heard of a garlic candle but sounds ideal as I have various overwintering plants in the greenhouse. Seems the general consensus is not to use chemicals (which I feel better about).  Hot soapy water and garlic candle it is! Thanks all. 

12/01/2014 at 16:30

Mrs G, I will be getting one of those candles, thank you for the info.

13/01/2014 at 12:36

In the days years ago when I grew Tropical plants in my then 10 x 18 foot GH I used Fumigation Cones available from garden centres. I assume they are still available and they were completely safe for plants but NOT for aphids!

13/01/2014 at 14:40

I always wash the glass down inside and out with Jeyes fluid in early spring making sure to get into all the nooks and cranny also scrub the paved  floor with the same then rinse down with a hose pipe.

13/01/2014 at 16:39

I wash inside and outside with anti bac washing up liquid, and then "mop " inside with a squeezy mop using Jeyes. Used to do from start to finish with Jeyes and a cloth, but got it all over me, even in hair, hate the smell.  

13/01/2014 at 18:50

No problem artjak and allium, got mine from Amazon which was cheaper than anywhere else.

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