London (change)
Today 17°C / 10°C
Tomorrow 16°C / 9°C

blairs


Latest posts by blairs

Heating the greenhouse

Posted: 08/04/2013 at 15:27

Re drainage, you would need to site it somewhere where it does not flood and water naturally flows away. Bottom of a slope is no good!

I found this link:

http://www.tulipsinthewoods.com/plant-care/cheap-and-easy-greenhouse/

Heating the greenhouse

Posted: 08/04/2013 at 09:54
LorraineP wrote (see)
blairs wrote (see)

Using the sun is the best way but no use during winter. Having the greenhouse in full sun and dug about 1 metre into the ground surrounded by stone chippings, having the floor tiled all retain heat and use the earths heat. A thermostatic fan heater will then keep the heat around the greenhouse.

Blairs, could you give a little more info 'dug about 1m into the ground surrounded by stone chippings'.  At the moment I'm visulising a sunken greenhouse!  Can't think thats what you mean.  Only ask as I am getting a greenhouse this year and am trying to gather as much info as pos so I get the right base laid.  Thanks.


Until recently all greenhouses were built into the ground - at least 1 metre with a trench around them. You only really had a top few feet of glass. Frost only penetrates  the top 3 inches and the earth naturally keeps plants above freezing point. If you put stone chippings around the greenhouse (they were built with brick foundations) then that is a heat sink as the stones retain heat. You could make the greenhouse warmer by using hot beds - grass clippings as blackest has said. It takes a bit of work though!

The bog standard glass greenhouses loose heat as it escapes out very easily. Have a brick foundation and it looses less heat and the brick retains heat. I would also always have a stone/paved floor in a greenhouse. Earth is no use.

drainage for tropical style garden

Posted: 07/04/2013 at 20:03

Bamboo and fern do not really need drainage but certainly the palms and Cordies will if you want to see them over winter. Lots of grit - you buy them in large packets for a few quid in GCs. Mix the grist with the soil and mix. Simple as adnd does work. I also add in bark and rough compost.

Heating the greenhouse

Posted: 07/04/2013 at 12:19

Using the sun is the best way but no use during winter. Having the greenhouse in full sun and dug about 1 metre into the ground surrounded by stone chippings, having the floor tiled all retain heat and use the earths heat. A thermostatic fan heater will then keep the heat around the greenhouse.

Acers

Posted: 07/04/2013 at 09:41

@Jean Genie - the soil looks pretty damp, they need soil on the dryish side until the leaves emerge. Your Acer looks like it has been pruned as there are no natural branch tips, just pruned end points. It does not look good though it may come back in summer but I think it will not going by previous experience.

Acers

Posted: 06/04/2013 at 18:50

Acer bloodgood actually prefer full sun. They do not need acidic soil, a mulch of leaf mould is all that is needed - and keeping the soil moist if in a pot. Like all Japanese maples thet hate strong wind and need to be kept out of it.

azelea

Posted: 05/04/2013 at 20:09

The Indian Azalea may tolerate a basket as long as you water it assiduously.

Do you use grow lights?

Posted: 05/04/2013 at 17:15

You might be better going on a Cannabis growing site as they are masters at using grow lights.

Carrots in tubs

Posted: 05/04/2013 at 17:12

I would actually say 75% sand with compost and pots at least 30cm deep.

Cosmos problems!

Posted: 05/04/2013 at 10:41
stupidoldgit wrote (see)

well i use homebase compost and look how great my houseplant in my loaf have growing

http://s3.gardenersworld.com/uploads/images/original/20982.jpg?width=350

 

Is Cosmos the only thing you are growing? I tlooks like cannabis hydroponics.

Discussions started by blairs

ID this plant

Replies: 7    Views: 378
Last Post: 02/03/2014 at 19:40

Badly explained help!

Replies: 18    Views: 572
Last Post: 22/12/2013 at 23:42

Tree dahlia - dahlia imperilis

Replies: 2    Views: 365
Last Post: 29/11/2013 at 09:22

Who lives in a microclimate?

Replies: 11    Views: 346
Last Post: 28/11/2013 at 10:59

Propagating Japanese Cherry trees

How to Propagate Japanese Cherry trees 
Replies: 3    Views: 242
Last Post: 24/11/2013 at 14:45

Dicentra Care

How do you look after Dicentra? 
Replies: 6    Views: 378
Last Post: 23/09/2013 at 14:10

Agave Seed Germination

Agave seed germination 
Replies: 1    Views: 465
Last Post: 14/04/2013 at 21:46

Not GWM getting advertised discount @ Crocus

GWM says 20% discount and only get 10% 
Replies: 6    Views: 1197
Last Post: 24/03/2013 at 13:30

tetrapanax papyrifer seed germination

tetrapanax papyrifer seed germination 
Replies: 3    Views: 958
Last Post: 20/12/2012 at 16:20
9 threads returned