Square Foot Gardening Forum
[table bgcolor=#000000 height=275][tr][td]
Modified TT SFG vs. Cold Frame Toplef10Modified TT SFG vs. Cold Frame 1zd3ho10

Hello Guest!
Welcome to the official Square Foot Gardening Forum.
There's lots to learn here by reading as a guest. However, if you become a member (it's free, ad free and spam-free) you'll have access to our large vermiculite databases, our seed exchange spreadsheets, Mel's Mix calculator, and many more members' pictures in the Gallery. Enjoy.

Modified TT SFG vs. Cold Frame I22gcj10Modified TT SFG vs. Cold Frame 14dhcg10

[/td][/tr][/table]

Join the forum, it's quick and easy

Square Foot Gardening Forum
[table bgcolor=#000000 height=275][tr][td]
Modified TT SFG vs. Cold Frame Toplef10Modified TT SFG vs. Cold Frame 1zd3ho10

Hello Guest!
Welcome to the official Square Foot Gardening Forum.
There's lots to learn here by reading as a guest. However, if you become a member (it's free, ad free and spam-free) you'll have access to our large vermiculite databases, our seed exchange spreadsheets, Mel's Mix calculator, and many more members' pictures in the Gallery. Enjoy.

Modified TT SFG vs. Cold Frame I22gcj10Modified TT SFG vs. Cold Frame 14dhcg10

[/td][/tr][/table]
Square Foot Gardening Forum
Would you like to react to this message? Create an account in a few clicks or log in to continue.
Search
 
 

Display results as :
 

 


Rechercher Advanced Search

Latest topics
» Happy Birthday!!
by AtlantaMarie Today at 6:31 am

» Mark's first SFG
by sanderson Today at 1:36 am

» What are you eating from your garden today?
by sanderson Today at 1:26 am

» Sealing Barrels Flowers Struggling-Need Ideas
by middlemamma Yesterday at 6:24 pm

» Prefab compost question
by DMann Yesterday at 12:37 pm

» Starbucks for coffee grounds!
by OhioGardener Yesterday at 7:44 am

» N&C Midwest January & February 2024
by OhioGardener Yesterday at 7:38 am

» Kiwi's SFG Adventure
by sanderson 2/23/2024, 5:39 pm

» Hello from Surrey
by sanderson 2/23/2024, 12:29 am

» Kitty Control
by sanderson 2/22/2024, 10:49 pm

» Western Mount/High Plains: Seed Planting Dates
by Turan 2/22/2024, 4:07 pm

» Jjean59 first SFG - 2024
by Scorpio Rising 2/22/2024, 11:00 am

» Winter Lag - Waiting for Sprimg
by sanderson 2/21/2024, 4:36 pm

» TDs 2024 SFG
by Turan 2/21/2024, 12:09 am

» Hello! From GA! Newbie
by sanderson 2/20/2024, 9:53 pm

» Sweet Potato Slips - Buy or Grow?
by sanderson 2/20/2024, 1:27 pm

» Seeds 'n Such Free Shipping
by sanderson 2/20/2024, 1:09 pm

» Ohio Gardener's Greenhouse
by OhioGardener 2/19/2024, 5:46 pm

» Hi from Central Oregon
by donnainzone5 2/18/2024, 5:50 pm

» Mealybugs?
by OhioGardener 2/17/2024, 11:02 am

» Holy snow Batman!
by OhioGardener 2/17/2024, 10:59 am

» Second Life for Determinate Tomatoes?
by OhioGardener 2/16/2024, 7:35 am

» Calling all juice bar waste composters...
by KiwiSFGnewbie 2/12/2024, 12:14 am

» Recommended store bought compost - Photos of composts
by sanderson 2/9/2024, 10:52 pm

» Now is The Time To Take Seed Inventory
by sanderson 2/5/2024, 5:34 pm

» Homemade Seed Starting Mix
by sanderson 2/4/2024, 4:05 pm

» Stop warping in pine planks
by sanderson 2/4/2024, 3:56 pm

» Here's my purple cauliflower.
by markqz 2/1/2024, 11:40 pm

» Alfalfa Pellets and Epsom Salt for Tomatoes?
by sanderson 2/1/2024, 12:24 pm

» Bokashi
by sanderson 1/27/2024, 3:24 pm

Google

Search SFG Forum

Modified TT SFG vs. Cold Frame

+8
miinva
martha
Furbalsmom
BackyardBirdGardner
middlemamma
camprn
titans01
boffer
12 posters

Go down

Modified TT SFG vs. Cold Frame Empty Modified TT SFG vs. Cold Frame

Post  boffer 3/17/2010, 11:42 pm

Modified SFG bed vs. cold frame

(this post is about the use of cold frames in the springtime-not autumn)

Cold frames can be a great way to get a head start on spring planting and for hardening off plants. What people rarely talk about however, is if you stick it where the sun don't shine, they don't work very well. I had a thermometer in my cold frame until it broke; I haven't replaced it. If I want to know what it's like inside the cold frame, I get in my car. If it's 20 degrees F, with snow on the ground, and the sun is shining, it can get quite warm in the car. If it's a steady 40 degrees F with clouds and rain for days on end, it's quite chilly. Occasionally, we get a February where we don't see the sun for the entire month. People start jumping off bridges and tall buildings because it's so depressing. And cold frames become next to worthless.


Modified TT SFG vs. Cold Frame Oscold10


Every year I get more of my beds off the ground onto tabletops. This year it was time to start getting my cold frames off the ground. I had a modified TT bed that I used for an experiment last year, that I decided to use.


Modified TT SFG vs. Cold Frame Ostt_810


It's 4x6 with a plastic cover similar to what Mel describes. But I insulated the box (sorry no pics of this). I put 1 inch pink foam on the bottom, then I covered the bottom and sides with that 1/4 inch bubble wrap that's sandwiched between aluminum foil. I bought a soil heating cable from my local hardware/nursery to fit the box. It has a built-in non-adjustable thermostat set for 70 degrees F. The cable gets taped to the bottom, and the thermostat is placed in the middle of the soil. I monitor a thermometer in the soil. This year in February, I had 4 nights that got to 24 degrees. The coldest the soil got was 58 degrees. I used a watt/hr meter to measure the power consumption. On average, the soil heater uses a little over 1 KW per day. For me, that's about 11 cents a day.

I planted the same seeds in the cold frame and modified SFG box on the same day. Lettuce, rads, spinach and carrots. We've had above average sunshine this year, and there is still a good size difference.


Modified TT SFG vs. Cold Frame Iscf_810



Modified TT SFG vs. Cold Frame Istt_810



In the SFG bed, I also planted a bunch of misc. stuff: White onions, BS, brocolli, luffa, cabbage...... The way the stuff is growing, I'm thinking next year of doing some of my indoor seeding in this box. That way I won't have to harden off and transplant stuff. After I harvest the veggies in the cold frame, it's history!


Carrots in 25 days


Modified TT SFG vs. Cold Frame Carrot10


White onions
(dang, I should have weeded before I took pics!)


Modified TT SFG vs. Cold Frame Wonion10

boffer
boffer

Male Posts : 7392
Join date : 2010-02-26
Age : 70
Location : yelm, wa, usa

http://boffer.us/

Back to top Go down

Modified TT SFG vs. Cold Frame Empty Re: Modified TT SFG vs. Cold Frame

Post  titans01 3/18/2010, 1:34 pm

Way cool! On the TT cover is it fastened to both sides and the only access is on the ends?
avatar
titans01

Male Posts : 122
Join date : 2010-03-10
Age : 52
Location : Nebraska (Zone 5a)

http://goodgameme.wordpress.com/

Back to top Go down

Modified TT SFG vs. Cold Frame Empty Re: Modified TT SFG vs. Cold Frame

Post  boffer 3/18/2010, 4:40 pm

It was an 'experiment' this year so I didn't put much effort into convenience. I just used scraps to secure the plastic to the box all the way around. To the right, you can just see the yellow drill I use to get into the thing right now. The end you can't see has a six inch square hole to peek inside. (I cut the plastic too short!) You can see the blanket on the ground behind the bed that I use to cover up the hole.

Maybe someone has a convenient way to set up access. The bed is 6 feet long, at this stage it's easy enough to reach the middle. Eventually I'll take the plastic off for the summer
boffer
boffer

Male Posts : 7392
Join date : 2010-02-26
Age : 70
Location : yelm, wa, usa

http://boffer.us/

Back to top Go down

Modified TT SFG vs. Cold Frame Empty Re: Modified TT SFG vs. Cold Frame

Post  camprn 3/7/2011, 7:48 pm

Bump
camprn
camprn

Forum Moderator Certified SFG Teacher

Female Posts : 14169
Join date : 2010-03-06
Age : 61
Location : Keene, NH, USA ~ Zone 5a

https://squarefoot.forumotion.com/t3574-the-end-of-july-7-week

Back to top Go down

Modified TT SFG vs. Cold Frame Empty Re: Modified TT SFG vs. Cold Frame

Post  middlemamma 3/7/2011, 8:12 pm

Great timing camp.... Smile
middlemamma
middlemamma
 
 

Female Posts : 2264
Join date : 2010-04-25
Age : 46
Location : Idaho Panhandle

Back to top Go down

Modified TT SFG vs. Cold Frame Empty Re: Modified TT SFG vs. Cold Frame

Post  camprn 3/7/2011, 8:21 pm

middlemamma wrote:Great timing camp.... Smile
Wink
camprn
camprn

Forum Moderator Certified SFG Teacher

Female Posts : 14169
Join date : 2010-03-06
Age : 61
Location : Keene, NH, USA ~ Zone 5a

https://squarefoot.forumotion.com/t3574-the-end-of-july-7-week

Back to top Go down

Modified TT SFG vs. Cold Frame Empty Re: Modified TT SFG vs. Cold Frame

Post  boffer 3/16/2011, 2:10 pm

I'll bump again cause miinva asked about it in another thread. Note: This thread was started at this time last year. This is a March, 2011 update.

I'm done with cold frames. I like a heated sfg box sooo much better. This year has been very overcast and even though I had several days into the low teens after planting, everything survived just fine.


This view was direct seeded on 1/17. Spinach, turnips, and bok choi in the front row. The second and third rows are broccoli. The broccoli got real leggy for a while, then started growing again. I might add lights next year.
Modified TT SFG vs. Cold Frame Dscn0015



This is the other end of the same box. Direct seeded on 2/1. Lettuces and bok choi.
Modified TT SFG vs. Cold Frame Dscn0014



I guess these are my control squares. They are protected from the worst of the rain, but exposed to the temperatures. Direct seeded on 1/17. They hadn't sprouted yet when we had the cold temps.
Modified TT SFG vs. Cold Frame Dscn0017



I was slow to get my second heated box built. These are broccoli and cauliflower sprouted in peat discs on 2/21 and planted into the heated box on 3/11. They are planted 5 to a square. The plan is to leave the center one as is and to transplant the plants in the corners to another box when the weather improves.
Modified TT SFG vs. Cold Frame Dscn0016



This winter's look..
Modified TT SFG vs. Cold Frame Dscn0013





boffer
boffer

Male Posts : 7392
Join date : 2010-02-26
Age : 70
Location : yelm, wa, usa

http://boffer.us/

Back to top Go down

Modified TT SFG vs. Cold Frame Empty Re: Modified TT SFG vs. Cold Frame

Post  BackyardBirdGardner 3/16/2011, 3:07 pm

Modified TT SFG vs. Cold Frame 73140 Awesome stuff, boffer! Modified TT SFG vs. Cold Frame 73140
BackyardBirdGardner
BackyardBirdGardner

Male Posts : 2727
Join date : 2010-12-25
Age : 50
Location : St. Louis, MO

Back to top Go down

Modified TT SFG vs. Cold Frame Empty Re: Modified TT SFG vs. Cold Frame

Post  boffer 3/16/2011, 3:47 pm

Ditch the gallon jugs; plug in your SFG box; sleep better at night!
boffer
boffer

Male Posts : 7392
Join date : 2010-02-26
Age : 70
Location : yelm, wa, usa

http://boffer.us/

Back to top Go down

Modified TT SFG vs. Cold Frame Empty Re: Modified TT SFG vs. Cold Frame

Post  Furbalsmom 3/16/2011, 5:29 pm

Hey Boffer, how do you think this heated soil box would work during the summer in our heat challenged climate to grow tomatoes, eggplant and peppers?
Furbalsmom
Furbalsmom

Female Posts : 3141
Join date : 2010-06-10
Age : 77
Location : Coastal Oregon, Zone 9a, Heat Zone 2 :(

Back to top Go down

Modified TT SFG vs. Cold Frame Empty Re: Modified TT SFG vs. Cold Frame

Post  boffer 3/17/2011, 10:46 am

I tried tomatoes and peppers in it the year before last. You remember...the hottest summer in a while! So I don't know if it helped or not.

I'll be trying tomatoes again this year. That voice chanting 'greenhouse, greenhouse' is getting louder every year!
boffer
boffer

Male Posts : 7392
Join date : 2010-02-26
Age : 70
Location : yelm, wa, usa

http://boffer.us/

Back to top Go down

Modified TT SFG vs. Cold Frame Empty Re: Modified TT SFG vs. Cold Frame

Post  martha 3/17/2011, 8:55 pm

In the SFG bed, I also planted a bunch of misc. stuff: White onions, BS

Boffer, I didn't know you had to plant BS (she says with the most innocent facial expression you have ever seen.)
martha
martha

Female Posts : 2188
Join date : 2010-03-03
Age : 66
Location : Acton, Massachusetts Zone 5b/6a

Back to top Go down

Modified TT SFG vs. Cold Frame Empty Re: Modified TT SFG vs. Cold Frame

Post  miinva 3/17/2011, 9:22 pm

Thank you, Boffer! What a cool experiment! We're putting in some new beds this year, maybe we'll spring for a couple of soil heaters Smile
avatar
miinva

Female Posts : 780
Join date : 2010-04-29
Age : 55
Location : Central Virginia, 7A as far as I can tell

http://www.ungardener.blogspot.com

Back to top Go down

Modified TT SFG vs. Cold Frame Empty Re: Modified TT SFG vs. Cold Frame

Post  Old Hippie 3/18/2011, 10:09 am

martha wrote:

Boffer, I didn't know you had to plant BS (she says with the most innocent facial expression you have ever seen.)


Modified TT SFG vs. Cold Frame 262465 Good one!

Gwynn
Old Hippie
Old Hippie
Regional Hosts

Female Posts : 1156
Join date : 2010-08-12
Age : 72
Location : Canada 3b

Back to top Go down

Modified TT SFG vs. Cold Frame Empty Re: Modified TT SFG vs. Cold Frame

Post  LittleGardener 7/22/2011, 11:51 am

boffer wrote:Modified SFG bed vs. cold frame

(this post is about the use of cold frames in the springtime-not autumn)

Cold frames can be a great way to get a head start on spring planting and for hardening off plants. What people rarely talk about however, is if you stick it where the sun don't shine, they don't work very well. I had a thermometer in my cold frame until it broke; I haven't replaced it. If I want to know what it's like inside the cold frame, I get in my car. If it's 20 degrees F, with snow on the ground, and the sun is shining, it can get quite warm in the car. If it's a steady 40 degrees F with clouds and rain for days on end, it's quite chilly. Occasionally, we get a February where we don't see the sun for the entire month. People start jumping off bridges and tall buildings because it's so depressing. And cold frames become next to worthless.


Modified TT SFG vs. Cold Frame Oscold10


Every year I get more of my beds off the ground onto tabletops. This year it was time to start getting my cold frames off the ground. I had a modified TT bed that I used for an experiment last year, that I decided to use.


Modified TT SFG vs. Cold Frame Ostt_810


It's 4x6 with a plastic cover similar to what Mel describes. But I insulated the box (sorry no pics of this). I put 1 inch pink foam on the bottom, then I covered the bottom and sides with that 1/4 inch bubble wrap that's sandwiched between aluminum foil. I bought a soil heating cable from my local hardware/nursery to fit the box. It has a built-in non-adjustable thermostat set for 70 degrees F. The cable gets taped to the bottom, and the thermostat is placed in the middle of the soil. I monitor a thermometer in the soil. This year in February, I had 4 nights that got to 24 degrees. The coldest the soil got was 58 degrees. I used a watt/hr meter to measure the power consumption. On average, the soil heater uses a little over 1 KW per day. For me, that's about 11 cents a day.

I planted the same seeds in the cold frame and modified SFG box on the same day. Lettuce, rads, spinach and carrots. We've had above average sunshine this year, and there is still a good size difference.


Modified TT SFG vs. Cold Frame Iscf_810



Modified TT SFG vs. Cold Frame Istt_810



In the SFG bed, I also planted a bunch of misc. stuff: White onions, BS, brocolli, luffa, cabbage...... The way the stuff is growing, I'm thinking next year of doing some of my indoor seeding in this box. That way I won't have to harden off and transplant stuff. After I harvest the veggies in the cold frame, it's history!


Carrots in 25 days


Modified TT SFG vs. Cold Frame Carrot10


White onions
(dang, I should have weeded before I took pics!)


Modified TT SFG vs. Cold Frame Wonion10



This is just AWESOME! - Thanks for sharing Smile
as always, I have lots Very Happy of questions:

1. WHAT did you use for the BOTTOM? of these "Heated T.T. gardens"
(preventing buckling/caving)

2. How do you keep the wildlife such as DEER (etc) out?

3. Could a person compromise by starting something similar on a DECK?

4. About how much would it cost to build one of your "Heated T.T. gardens"?

5. About how much would it cost to heat one, annually?

Thank you for your generous Smile help
LittleGardener
LittleGardener

Female Posts : 370
Join date : 2011-07-21
Location : PNWet 7 B

Back to top Go down

Modified TT SFG vs. Cold Frame Empty Re: Modified TT SFG vs. Cold Frame

Post  boffer 7/22/2011, 12:51 pm

LittleGardener wrote:
This is just AWESOME! - Thanks for sharing Smile
as always, I have lots Very Happy of questions:

1. WHAT did you use for the BOTTOM? of these "Heated T.T. gardens"
(preventing buckling/caving)

Two other threads that are applicable here:

Building table tops.
Building heated hoop houses.

2. How do you keep the wildlife such as DEER (etc) out?

After fighting the deer for six years with temporary fencing and silly ideas, I finally broke down this year and put up 6 foot fencing. I'm a slow learner!

3. Could a person compromise by starting something similar on a DECK?

Sure

4. About how much would it cost to build one of your "Heated T.T. gardens"?

They're just sfg boxes, so whatever your preferences for boxes are. The soil heating cable with thermostat is a little over $3/sf.


5. About how much would it cost to heat one, annually?

I have run a watt meter on them and it costs ~12¢ a day per box.



I'm using this H3 as a germination bed. There's 75 broccoli seeds planted, 5 per square. I'll transplant 4 of them. I've tried the indoor germination thing a couple years; I just don't have the nurturing gene that's required. The box was sitting there empty; might as well use it.

Modified TT SFG vs. Cold Frame Dscn0719
boffer
boffer

Male Posts : 7392
Join date : 2010-02-26
Age : 70
Location : yelm, wa, usa

http://boffer.us/

Back to top Go down

Modified TT SFG vs. Cold Frame Empty Re: Modified TT SFG vs. Cold Frame

Post  MasonGarden 7/22/2011, 1:05 pm

Boffer - Love your TT's! Did you buy the steel table frames that are pictured or did you make them? I know you put the components together yourself, but I am wondering about the frames. I don't have the skills or the tools to make something like that, so I am hoping they can be purchased somewhere. Thanks!
MasonGarden
MasonGarden

Female Posts : 284
Join date : 2010-03-17
Location : Mason, OH

Back to top Go down

Modified TT SFG vs. Cold Frame Empty Re: Modified TT SFG vs. Cold Frame

Post  boffer 7/22/2011, 5:38 pm

Sorry, I built all my tables from scrap steel. That's why none of them are the same size!
boffer
boffer

Male Posts : 7392
Join date : 2010-02-26
Age : 70
Location : yelm, wa, usa

http://boffer.us/

Back to top Go down

Modified TT SFG vs. Cold Frame Empty Re: Modified TT SFG vs. Cold Frame

Post  MasonGarden 7/22/2011, 5:42 pm

Wow, you ARE a handy, talented dude!! way to go
MasonGarden
MasonGarden

Female Posts : 284
Join date : 2010-03-17
Location : Mason, OH

Back to top Go down

Modified TT SFG vs. Cold Frame Empty Re: Modified TT SFG vs. Cold Frame

Post  AprilakaCCIL 7/22/2011, 6:01 pm

Very ((COOL)) Thanx 4 sharing.
AprilakaCCIL
AprilakaCCIL

Female Posts : 219
Join date : 2011-06-30
Age : 49
Location : Zone 7b

Back to top Go down

Modified TT SFG vs. Cold Frame Empty Re: Modified TT SFG vs. Cold Frame

Post  LittleGardener 7/26/2011, 1:01 am

Happily I found this thread again, as I was sorta stumped on
my next Garden-project: 1. how to securely support the weight of Raised-beds,
while at the same time: 2. keep the Deck-planks functional.

Not having "scrap-steel" handily available, I was searching on Ixquick, when
I remembered a rusty, old metal Shelf that maybe we could adapt... ?

What's an H3 ? - Edit: I just found out it's a "Heated hoop house"
LittleGardener
LittleGardener

Female Posts : 370
Join date : 2011-07-21
Location : PNWet 7 B

Back to top Go down

Modified TT SFG vs. Cold Frame Empty Re: Modified TT SFG vs. Cold Frame

Post  Sponsored content


Sponsored content


Back to top Go down

Back to top

- Similar topics

 
Permissions in this forum:
You cannot reply to topics in this forum