Coldframe V2.0

I had been wanting to upgrade my coldbag, because even it works really nice, the little seedlings could have even more advantages. In particular I wanted something that would let more sun to the little seedlings. 

The new seedlings are doing great

So I started scavenging for materials to use. I didn't wanted to build one out of wood and glass, because my goal was keeping the portability and cheapness of the cold bag. I considered using a cardboard box, but I knew that on the first rain, or with the water pouring out from the little started planter, I would end up with a cold frame soup in no time.

Then I remembered that here, at some grocery stores, they always leave all the plastic boxes from the food, all cleaned and ready for people who need them to pick them up. So, one day I went grocery shopping, I took a small look at their little recycle corner. There I found the perfect box. It was a deep, thick expanded polystyrene box, in perfect condition.

Building the new coldframe

The build was very simple.

1. I carved a small window on the cover of the box to leave only a frame. Being sure to leave a small edge


2. Cut apart a transparent plastic bag to have two sheets to use as "glass".


3. I taped one of the transparent sheets to the edge I had left and cover the hole in the frame.


4. Turn around the lid and tape the other sheet from the inside. This will make the window a sandwich of plastic, air and plastic.


5. Finally use little pieces of tape to cover any hole in the borders. The more airtight the better

I used two plastic sheets, one in each side of the cover. That way the insulation will be much better. The air in the middle will work as the insulator. The same way a double glass (double frame) windows work better than a single glass window. 

So far it has worked beautifully. The little seedlings growing there sprouted in no time, they have even reached the size of the ones in the coldbag already.

From back to front: Bekkana, Spinach, Komatsuna, Lettuce

The first to grow were the Bekana and the Komatsuna, then the spinach and finally the lettuce, coriander and the chives. I was surprised the chives and the lettuce sprouted, they are supposed the be past their season. They must really be very cozy and warm in there. I hope they all keep growing nicely, I will post more about how they develop later.

Now, the only setback is that the new coldframe has such a good insulation that every morning the inside screen appears all damped because of the condensation. I have to dry it a bit and clean it up so it will let the sunshine in.

I recommend anybody who wants to have a nice cheap planter at their homes to use old expanded polystyrene boxes. First, because is much better to reuse them than throw them to the garbage. Second because they are great planters. Expanded polystyrene is a great ecofriendly material, even though it certainly doesn’t look like it. It is a great insulator, and has an amazing endurance for such a light weight. It definitely won't mold and It will not degrade easily, so I can last lots of gardening seasons.

The first seedlings sprouted in 4 days

One more thing about polystyrene. It is highly recyclable, but it very hard to do it because it has to be sorted away from other materials, which is a very troublesome task. This causes a big problem because it is usually thrown with normal garbage and pollute instead of being recycled. So, if you can rescue some polystyrene from going to the dumpster, and give it some more years of use please do.

My Seeds

Part of the fun of having a garden is all the planning involved on it. Being able to decide what we would grow next and where it would go is very exciting. One of my favorite parts is choosing among the infinite varieties of plants to grow.

My seeds box

I always get carried away imagining how it would be to grow this and that, and I always want to add a new plant to my garden. The only problem is that here in my little garden in Japan, we only have the very restricted space a balcony garden can provide.

Of course, this didn't stop me when getting seeds. Adding the ones I brought from Mexico and the ones I got here, now I have ended up with way more of what I would be able to have. I really doubt I can fit even a quarter of all this in my little garden. So, I am sure there will be very tough decisions to make next year, when I would have to choose what to sow.

I like to keep my seeds in jars instead of envelopes

Here is a peek into my seeds box for this year. That way you can help me decide.

• Chives. I just got this ones, I will sow them this week, hopefully they still can catch the season.


• Thyme I cave in to my impatience and I bought the plant, so probably I won't need these after all.


• Alyssum I have the plant too, but I doubt it will stand the winter, so they are my back up plan.


• Cactus A little bit of Mexico's flavor, but I have three bags, so I will give some away.

Komatsuna, Cilantro and Chile de arbol

• Chile I have chile serrano, chile ancho, chile guajillo, chile pasilla, chile poblano, chile de arbol y chipotle. It will be impossible to pick only one.


• Zempasuchitl The Mexican marigold, with a much stronger scent, I like this flower and it is very good for the garden, so this one is a keeper.


• Epazote An annual herb, good for condiments.

Alyssum, Cactus and Lettuce

• Komatsuna The one I am growing now is doing very well. So I think it can be a keeper for next winter as well.


• Cilantro Must have for Mexican food.


• Beans The beans I had this year didn’t do well. Even when they flower they did not got fruit. I brought some from Mexico, hopefully they can do better.

Chamomile, White flower and Beans

• Lettuce Another of my winter vegetables that is going great.


• Chamomile This one might go well on a planter with the Epazote, It would be a nice addition to the herb corner.


• Unidentified white flower I picked this one up from a sidewalk in shibuya, no idea what it is.

Beside all of this, I want to grow some pumpkin, some tomato, possibly blueberries. Also, I know there will be more plants that I won't be able to resist next year.

It is definitely too much for me, anybody want some extra seeds?

My herbs

Herbs are easy to grow in little gardens. They usually thrive in containers, and most are very resistant to everything.

My mints were the first herb I got for my garden, but after seeing how they could grow so easy I decided to get some more.

My Cilantro (Coriander/Chinese parsley)

my first batch of Coriander

I had to get this plant because I missed that flavor. For me "cilantro" is one of the basic herbs for cooking, also I know it is native of Asia so I was very surprised when I got to japan and I couldn’t find it anywhere. I went to many supermarkets and food stores but it was nowhere to be found. I only saw it once in Nihonbashi, but when I went back to buy it they didn't have it anymore.

Getting a bit frustrated because I couldn’t buy it fresh I decided to grow It myself. I looked around internet and research about how to grow coriander. It was winter so I had to wait, but the idea was on my mind already.

Next spring, after I moved and I discovered the garden center I got some seeds there, I sow them and waited for some tasty leafs. The plants were growing fine, but then I went on vacation and they suffer quite a bit. When I came back they didn't look good, I water them thoroughly and when the leafs got fresh I harvest them all. They were really tasty.

After that I have sowed some more, I hope they are still on season.

My sweet basil

My sweet basil is growing well

After my success growing mint and my semi success growing cilantro I wanted to get some more herbs. Last month on a trip to the garden center I saw that they had sweet basil for sale, so one more plant for my little garden. I did some research about how to grow basil and set it up.

Now it is growing very happily where the marigold used to be, it is growing quite fine and I already used it for my cooking twice.

I do want to have more herbs, but I am worried I will run out of space, my little garden is really a very little garden. Well maybe one little lavender, it can't hurt that much.

My plants

Here is a small ever-changing list of the plants on my garden.
I will try to update this page accordingly to my current garden status. All my plants are now on the "my garden" page

 

• Mint: One apple mint and one peppermint
• Beans: No idea what kind I just try to sow some I didn’t eat
• Grape: It's a Pione, I just got it this month 
• Cilantro: Now on the second sow, I hope they are still on season
• Basil: Sweet basil, I want to try to cook with it
• Japanese maple tree (紅葉): The pot actually has four different kinds I'm waiting for autumn to see which one I keep
• Kalanchoe: Pink, donated by a shop
• Strawberry (苺): In memory of my grandfather 
• Tomato: On the end of season
• Pepper: Rescued form a garden shop trash
• Torenia: White, so many flowers
• Blue Salvia: Beautiful purple flowers
• Zantedeschia: My first plant in japan
• Rose: A little yellow mini rose
• Geranium: White and red for my mom
• Globe amaranth*: For the butterflies  

 

All of my plants have been an adventure on its own, some have worked some have not. Also besides from this I hope to acquire some tulips and maybe some other plants along the road.

*Updated 27 Aug 2010: A brand new globe amaranth