Square Foot Gardening Forum
[table bgcolor=#000000 height=275][tr][td]

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.


Display results as :


Rechercher Advanced Search

Latest topics
» Big Bug ?
by newbeone Today at 4:29 pm

» Trellis
by CapeCoddess Today at 4:16 pm

» Fall Planting
by Robbomb116 Today at 3:39 pm

» CANADIAN REGION: What are you doing in JUNE 2017
by countrynaturals Today at 3:24 pm

» 2017 corn pictures
by countrynaturals Today at 3:22 pm

» A really, really Frugal Gardener
by countrynaturals Today at 3:17 pm

» What to Grow through Very Hot Summers
by countrynaturals Today at 3:15 pm

» TrolleyDriver's Compost Thermometer
by trolleydriver Today at 2:32 pm

» Tomato - Snow Fairy
by trolleydriver Today at 2:24 pm

» Third Year SFG in Canada
by trolleydriver Today at 2:20 pm

» 2017 SFG in Brooks, Ga
by Judy McConnell Today at 2:18 pm

» Jaffa's garden - year one
by sanderson Today at 2:14 pm

» Poppy seeds - Hungarian Blue Breadseed
by sanderson Today at 2:03 pm

» Texas Dream garden 2017
by sanderson Today at 1:29 pm

» Should I cover plants while away
by sanderson Today at 1:17 pm

» What are you eating from your garden today?
by trolleydriver Today at 1:16 pm

» New squash in a hurry
by RC3291 Today at 11:42 am

» Netting as Barrier
by CapeCoddess Today at 11:38 am

» Cinnamon, Fungus, and Gnats
by Fiz Today at 8:24 am

» Zucchini Tower
by AtlantaMarie Today at 8:23 am

» Cover grape fruit to save from birds
by AtlantaMarie Today at 8:20 am

» Question About Strawberries
by trolleydriver Today at 7:22 am

» Wonderful laid back Fathers day
by sanderson Today at 3:22 am

» Escarole in SFG
by BeetlesPerSqFt Yesterday at 10:46 pm

» N & C Midwest--It is JUNE!!!! Garden Time!
by CitizenKate Yesterday at 10:23 pm

» possible peppers and cucumber problem
by Scorpio Rising Yesterday at 8:47 pm

» 2017: First full year of SFGing in ND
by Scorpio Rising Yesterday at 8:25 pm

» Composter recommendations
by sanderson Yesterday at 5:41 pm

» My early garden
by sanderson Yesterday at 5:17 pm

» cabbage pest??
by BeetlesPerSqFt Yesterday at 2:43 pm


Search SFG Forum

Dolomite? Is MM Earth Box compatible?

View previous topic View next topic Go down

Dolomite? Is MM Earth Box compatible?

Post  Windmere on 6/11/2013, 5:42 pm

Hello all,

I have ten Earth Boxes and I called the Earth Box company today concerning how soil content might affect the "wicking" property of the self watering box. My worry is that MM might not work well with the system.

The lady I spoke to had never heard of the SFG method (???). We sort of went around in circles because she referred me to a section in their website called "approved" soils. All of them were, of course, commercial (even Miracle Gro).

She also told me that I MUST add a pound of dolomite to each Earth Box to prevent magnesium and calcium deficiency.

I have done a search on the Forum site, and I have not found anything on the topic of dolomite. I may not have performed a good search, I'm not sure.

Is dolomite something that is ok as a MM additive? I have seen a few posts where plants were affected by magnesium and calcium deficiencies. I'm guessing it can be an issue.

Does anyone have any thoughts/advice?


Male Posts : 1425
Join date : 2013-02-26
Age : 48
Location : Fayetteville, GA - Zone 7B - 8A

View user profile

Back to top Go down

Re: Dolomite? Is MM Earth Box compatible?

Post  camprn on 6/11/2013, 5:51 pm

Now when you are asking about magnesium and calcium deficiency, taking into consideration the pH of the growing mix will have an effect on the absorption.
What is pH? Well read this interesting rant.

Unless your plants are actually suffering symptoms of deficiency, why add anything...?

If the EarthBox folk have Miracle-Gro soilless growing mix on their list and it works in the boxes, it should work well enough with the fresh Mel's mix, which is basically the same this without the chemical fertilizer. Just my$0.02. Good luck!


41 years a gardener and going strong with SFG.

There are certain pursuits which, if not wholly poetic and true, do at least suggest a nobler and finer relation to nature than we know. The keeping of bees, for instance. ~ Henry David Thoreau



Forum Moderator Certified SFG Teacher

Female Posts : 14165
Join date : 2010-03-06
Age : 54
Location : Keene, NH, USA ~ Zone 5a

View user profile http://squarefoot.creatingforum.com/t3574-the-end-of-july-7-week

Back to top Go down

Re: Dolomite? Is MM Earth Box compatible?

Post  boffer on 6/11/2013, 5:52 pm

Walshevak and I have both posted excellent results using MM in a wicking box.

Quality homemade 5 way compost shouldn't be lacking in calcium and magnesium.

Male Posts : 7392
Join date : 2010-02-26
Age : 64
Location : yelm, wa, usa

View user profile http://boffer.us/

Back to top Go down

Thanks very much

Post  Windmere on 6/11/2013, 6:58 pm

Thanks so much camprn and boffer. Boffer, I did do a forum search with the word "wicking" and I found your and Walshevak's posts. Lots of information there. Thanks for leading me there. Boffer, you garden "explosion" was very encouraging to read!

Camprn, the rant was very interesting. I was actually wondering about acid loving plants and the application of lime. I learned a lot from that.

Well, my compost should be good. Black Kow Compost, Pure Mushroom Compost, Vegetable and Fruit Compost, Worm Castings, and Chicken Compost. A friend of ours has rabbits, so a few clumps of droppings for good measure.

Thanks again Smile

P.S. It is June 10th and, for various reasons beyond my control, I finally got my 4x4 boxes assembled and put on the ground (I had to use a pick axe to level the ground... only available option was on a slope). Compost mixed. MM mixed. Garden fabric laid down. Boxes filled. Tomorrow: Planting my (huge) plants. They've been languishing in 5" peat pots. Roots just barely peeking out... so I think they'll be ok.

I'm pretty excited. cheers

Male Posts : 1425
Join date : 2013-02-26
Age : 48
Location : Fayetteville, GA - Zone 7B - 8A

View user profile

Back to top Go down

Re: Dolomite? Is MM Earth Box compatible?

Post  walshevak on 6/11/2013, 10:07 pm

My 2 cents. MM works in every container you can come up with. I would trust in in the earthgrow boxes over anything else.


Elizabeth City, NC
Find more about Weather in Elizabeth City, NC
Click for weather forecast

Certified SFG Instructor

Female Posts : 4349
Join date : 2010-10-17
Age : 74
Location : wilmington, nc zone 8

View user profile

Back to top Go down

Re: Dolomite? Is MM Earth Box compatible?

Post  Triciasgarden on 6/11/2013, 11:25 pm

Sounds like you are going to have some fun Windmere!

Female Posts : 1628
Join date : 2010-06-04
Age : 62
Location : Northern Utah

View user profile

Back to top Go down

Good advice all - Thanks to all of you for taking the time to leave me your messages.

Post  Windmere on 6/12/2013, 2:18 pm

Just wanted to thank all of you for your input.

Tricia:  Yes, this will be an adventure.  If I get at least one tomato out of all of this... I will be happy. 


Male Posts : 1425
Join date : 2013-02-26
Age : 48
Location : Fayetteville, GA - Zone 7B - 8A

View user profile

Back to top Go down

Re: Dolomite? Is MM Earth Box compatible?

Post  squaredeal on 6/12/2013, 10:57 pm

I, too, am using Earthboxes (or EB look-alikes).  One thing I've learned from this forum with my SFG's is that systems work.   EBs are designed to use potting mixes which maximize soil wicking.  However, potting mixes have far more peat moss than does Mel's mix and that tends to make the soil more acidic than Mel's Mix.  I put in my dolomite and the organic fertilizer in my EBs as they suggested and the plants are doing great.  I have yet a different system in my Smart Pots - using 50% compost and 50% Mel's Mix and the veggies in those are doing great, too.

Female Posts : 192
Join date : 2011-05-09
Location : Indianapolis=6a

View user profile

Back to top Go down

EB requirements

Post  Windmere on 6/12/2013, 11:08 pm

Thank you for your comments squaredeal.  I have read some and I've also gotten some advice from other EB users.  The requirements are a bit different and I'm adapting accordingly.

Male Posts : 1425
Join date : 2013-02-26
Age : 48
Location : Fayetteville, GA - Zone 7B - 8A

View user profile

Back to top Go down

Re: Dolomite? Is MM Earth Box compatible?

Post  Sponsored content

Sponsored content

Back to top Go down

View previous topic View next topic Back to top

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