Wednesday, February 24, 2010

My perlite order finally came in

Since the soil in the self-watering containers stayed too wet last year, i've decided to add more perlite to the homemade mixture. There are lots of differing opinions on the internet about what the best soil mixture for swc's might be, and it seems like everyone is searching for the correct combination. Well, here's my theory on it - whether it be right or wrong. We all know that roots sitting in waterlogged soil will eventually begin to rot, because most fine - textured soils have what is called a perched water table. That is - even though water drains out of it, a portion of the soil will remain completely saturated. This phenomenon happens from the bottom up, and is not a desirable thing to have when using containers for growing tomatoes in. With the addition of enough perlite to a soil mixture ( which increases drainage ), a perched water table can effectively be lowered - even completely eliminated if desired. Here's a photo of my 2 big bags for amending with. My local farmer's cooperative orders anything I need, and they just plain rock!. Yay! Along with the wicking basket orifice reduction, this tomato growing season should be much better than last year.


Photo below - Here's a few buckets of saved soil from the swc's used last year, which were left out in the sun for a couple of days to dry out a bit. This particular mixture is 7 parts peat moss, 2 parts vermiculite, and 1 part perlite. It does well for most veggies, but pretty bad for growing tomatoes in a humid climate. I plan on altering it to a combination that is 6 parts peat, 3 parts perlite, and 1 part vermiculite. That should work much better, and hopefully keep my tomatoes from cracking when hot weather arrives.


Photo below - Even though previous attempts at growing potatoes have not been successful, i'll be trying them again this year - but in containers this time around. Most of the soil for these came from the saved swc soil, as I wanted to remove some of it from the 5 gallon buckets anyway to allow room for altering it. I laid down some leftover roof shingles from a few years back, then sat the pots on top of them. This keeps weeds from growing up into them later. It seems that me and ribbit had the same idea with potatoes this year....hehe.


I'll also be putting some perlite in the main garden bed, which should help the squash get the much needed drainage that it likes to have. The current mixture of "mel's mix" isn't ideal for squash, and they are stressed each time a heavy rain is experienced. As I found out last year on GW, that's why squash is planted in hills - to promote good drainage.

The weekend was very productive for me, and I even built a swc from the 16 gallon red bucket that was sitting at the edge of the property. It'll be used to grow honeydew melons in - 'cause we love those things! It's very likely that only 1 plant will be put in it, because I want to give the roots plenty of soil to grow in. If you've never tried the "cool green" variety, you're in for a real treat! No pumpkins this year, as they just take up way too much room (although the squashbugs that they attract can be quite entertaining for me, hehe) You know how I love beheading squashbugs!.....

In other news, things are happening so fast around here, I can't blog about them fast enough! My tomato seeds have germinated in 3 days (at least 400 of them), and they'll go into soil tomorrow after work. I started around 500, just in case some didn't make it. If any of you are interested in my quick germination method, i'll be glad to post about it.

I'd also like to thank Shawn and his wife from Trussville, Alabama for following the blog.

Take care, and happy gardening!

EG

15 comments:

PhillipT said...

Looking good EG! You really have me itching to get into my garden! Keep us posted, I love reading your posts.

GrafixMuse said...

Such exciting things happening at Our Engineered Garden! Those are huge bags of perlite! I will be shopping for some perlite soon to amend my SWC soil per your recommendation. Thanks again for your help.

Tomatoes germinating in 3-days? I would love to hear it and see some pics of the little seedlings if you have to time.

kitsapFG said...

EG's playing in the dirt again! :D

Those big bags of perlite are great. Should really improve the soil mix. I am thinking of doing something similar just in the row section that I am growing cucumbers in - they languished until late last year in all but one section and I am positive it was because their roots were not in a light enough/rich enough soil. The ones that did okay were in a different bed and it is heavily amended with compost. Made all the difference it seems. This year the cucumber bed has had lots of compost added but I think some perlite or vermiculite added would be smart too.

Daphne said...

Oh I would kill for a farmers coop around here that was like that. I would just love it. Good luck with your SWCs this year.

Engineeredgarden said...

Phillip - thanks, i'm glad it's finally time to start for the year.

rachel - the bags are 4 cu.ft. each, and cost about $15. We're gonna do much better this year with the swc's, as long as the weather cooperates. I'll definitely have to post about the germination method for ya...

kitsapFG - more drainage for the beds will only make things better, in my opinion. I'll mix the perlite into the existing soil depth - then cover with about 8" of compost. That way, the perlite won't come to the top when it rains. :-)

Daphne - Thanks, i'm very fortunate to have a good coop in my town.

JenGC said...

You must be kidding. 400 tomato plants? What in the WORLD do you do with all those tomatoes? I thought starting 20 tomato plants was insane. I guess you can put them out now because you are in Alabama (I dont know the zone)? Our average last frost ends April 30th

I would love to know how you got your plants to germinate in 3 days. I wish I had half the interest in building things as you do. Then again, I guess you need intelligence to go with that! lol You are loaded in both! Wanna make a trip to Nashville and build some things? I am not picky as long as it benefits vegetable gardening :D

Stefaneener said...

That's a LOT of tomatoes! This year, my seeds have been (mostly) popping up like firecrackers!

Did you plant by the moon?

Engineeredgarden said...

JenGC - nope - not kidding at all! I'm selling about 350 of them, and the others are for myself and family members. My average last frost date is April 15th, so not very far ahead of yours.
I'll definitely post about the germination method later, because several readers are interested in it. Yeah, I like building things!

stefaneener - It's a good bit, but I have capacity for twice that much. I reckon i'm one of the very few gardeners that planted by the moon this year. It'll be interesting to see people's results.

Momma_S said...

Thanks for discussing your SWC soil, EG. Perfect timing, as I'm having DH show me how to use a few new tools tonight so I can make my SWC's using your yogurt cup/tile method... A couple Q's for you:

Previously I asked you about using the tile in the kitty litter buckets. You said you'd be using bucket-in-a-bucket for these. Will a tile not work for these? I mostly have kitty litter buckets, and am hoping to use the tiles since I'm having a hard time getting more buckets (darn new recycling program).

Also, your 7:2:1 soil mix held too much water for your humid climate, but do you think it would work better than the 6:3:1 ratio for my dry, arid climate & w/my buckets being on concrete? Thanks, EG!

Engineeredgarden said...

Momma_S - you're welcome! The reason I do "bucket in bucket" when using cat litter containers, is because it only has 4 gallons of soil capacity to begin with, and you wouldn't want to reduce it any further. Although my cherry and paste tomatoes do well in them, it's still undecided whether the beefsteak varieties will be ok.

I feel that the 7:2:1 will not do well for your climate either, mainly because of the heat. If allowed to drink at will during the hottest part of summer, the tomatoes will crack like crazy. The concrete pad should help keep the bottoms cool - good idea!
I really feel that the 6:3:1 will do much better this year, and the smaller orifice in the wicking cup, too. Let me know if you'd like to know more of my thoughts about it.

Engineeredgarden said...

stefaneener - OOPS! That should have been "one of the few people that Didn't plant by the moon.....

Sunny said...

EG: I have never used perlite in my garden but I have in my pots...Is your soil there more clay-like?

400 hundred tomato plants? You are my kind of gardener! :)

Engineeredgarden said...

Sunny - me niether, but there's a first time for everything. :-) I'm mixing the perlite with the current fill of vermiculite, compost, and peat moss. Yep, 400 plants.

Thomas said...

Good luck with your container plants this year! I hope your theory about adding perlite to the soil mix is proven correct.

I'm planning on growing a few potatoes in pots as well. It seems that this only works for some bloggers. I'll have to do some more reading on this.

Dan said...

Sounds like the season is really getting underway down south. Good luck with all those tom's!