Free tomato seeds
15 years ago cheap, free, seeds, tomato
If you head over to Campbell’s Help Grow Your Soup site you can get some free tomato seeds and while you are at it vote for a barn which Campbell’s will give $250,000 to restore. So free seeds for you and one dollar for a barn restoration.
Tags: cheap, garden seeds, tomato plants
Best DIY cheap soil moisture sensor
15.1 years ago cheap, electronics, moisture sensor, water
My first version of my cheap soil moisture sensor has worked great for me but it did have a couple flaws. The first issue was construction, though I had great luck on my first attempt though after trying to recreate additional sensors given the small amount of gypsum between the sensor and the probes were so thin it was extremely easy to crack the sensor and I normally have about a 25% success rate on later creations (must have had beginners luck on the first one.
The second issue was durability. Given we are playing with gypsum and as it is suspended in water it will eventually breakdown and there is very little we can do about it. Though with my latest changes to my automated grow box which includes automated watering based on moisture content I want to ensure my measurements stay accurate throughout the season. To help with this I have decided to increase the sensors size and also am using galvanized nails to prevent rusting. After a few attempts I have come up what I feel is a pretty foolproof method of creating a moisture sensor.
How it works:
There were many questions in the comments in the previous post so hopefully I can clear this up a little here.
Technically a gypsum block measures soil water tension. When the gypsum block is dry it is not possible for electricity to pass between the probes, essentially making the probe an insulator with infinite resistance.
As water is added to the problem more electrons can pass between the probes effectively reducing the amount of resistance between the problem to the point when it is fully saturated where the probe has virtually zero resistance. By using this range of values you can determine the amount of water than exists in your soil.
Parts for cheap soil moisture sensor:
- Plaster of Paris
- 2 Galvanized Finish Nails
- 1/2 inch plastic tubing
- utility knife
Construction:
Take your utility knife and cut the tubing slightly longer than your galvanized finishing nails. Try to make the cut as straight as possible though it doesn’t have to be completely perfect.
Use your utility knife to cut the smaller plastic tube lengthwise, this will allow easier removal of your soil sensor after the mold cures.
Optional: Make the cut diagonally to prevent a potential vertical fracture line.
If you were very careful on you vertical cuts you can avoid this step, but to completely avoid spilling plaster onto my workbench I drilled four holes slightly larger than your tubing. I used these holes for support but also to catch any of the plaster in the gaps from you less than accurate vertical cuts.
Being careful that the tubing fits together where you split the tubing vertically, insert the tubes into the holes (or carefully on a flat surface) Mix Plaster of Paris and carefully fill with to the top. The friction between the tubing should keep a water tight seal where you made the cut, though if the plaster is a little thin and it appears to be leaking through wait a couple minute for the plaster to setup some and try again, at that time it should not have the viscosity to seep through the very small gap that may be causing the leak.
Take your two galvanized nails and push them through a small piece of wax paper. You may also allow the plaster to setup for a few minutes and then float the nails in the the plaster. I like the first method since gravity will help ensure they fall straight down and parallel to each other. As for spacing, I have done some experimentation with the gaps between the probes and my conclusion was, it doesn’t make much difference. As long as there is a gap (they are not touching) you should get reliable results.
After allowing the sensor to cure for about and hour remove it from the holes you drilled in the wood.
Gently pull back the plastic tubing and you have a nice clean soil sensor.
Lay them out to dry for 24 hours to cure completely and their construction is complete.
For attaching the wires there are a couple options. The best would be to solder them to the probes though to do this you need to heat up the nail hot enough to enable a strong solder connection. My little 15W soldering iron just can’t produce the heat for this so I am option for the wire wrap method. I take about an inch of wire and strip off about an inch of insulation and tightly wrap around the probe. Given copper will rust and could be a point of failure you will want to insulate this connection and the probes from the moisture. A few dabs of hot glue works pretty well. I am planning on trying liquid plastic, though I am currently out and when I have some on hand I will update with how it went.
How to use your cheap soil moisture sensor
You can simply hook up a multi-meter and check the resistance though if you want to create anything automated you would need to use an integrated circuit (IC) or a electronics prototyping platform such as Arduino. By applying voltage to one side of the sensor and using a voltage splitting circuit connected to ground and an analog input you can then measure the voltage making it through the probe. The higher the voltage, the higher the moisture content of the soil.
Conclusion
The above should give you everything you need to know to create your own cheap soil moisture sensor and how to use it. This can be used as a moisture soil sensor for watering your indoor plants like I am using it. This same moisture sensor could be for monitoring your outside soil moisture content to trigger (or preempt your irrigation system) to save some money on your water bill and/or maintain consistent moisture levels in your plants which could drastically improve water sensitive crops such as tomatoes.
Tags: arduino, cheap, growbox, led, outdoor plants, tomato plants, vegetables
Growing blueberries
15.1 years ago blueberry, cheap
If it were up to me every part of my landscaping would be edible. Though my homeowners association may disagree with me but blueberry bushes looks just as nice as any ornamental plant/bush when you visit the nursery with the obvious bonus of free food.
When selecting a blueberry bush, unless you are very patient spend about $10 a plant and get some more established ones (about 1/2 inch stem) You can get the two for $10 plants from your local Home Depot but you won’t be eating blueberries for a couple years. With the larger plants you should pinch off the blossoms to get better growth for the first couple years but I opt to getting my reward now instead of later and enjoy the handful of berries the young plants can produce.
When it comes to plant selection there are a large number of species to choose from with varying fruit size and harvest timing. I would recommend getting varieties that have varying maturity dates so you can enjoy those blueberries for a longer period of time. When I got my first two plants I went with Toro and Berkeley. The Berkeley is a very popular bush given it produces average size berries great for muffins/pancakes/cereal or the occasional snack with a mid-late harvest. The Toro on the other hand produces large (almost grape size) berries which are great for jams and snacks though bit of a mouthful for muffins. If you are curious of other varieties here is a great resource.
I have heard differing opinions on whether you need to have different species to successfully produce fruit after a little research I found this article which explains that blueberries are capable of pollinating with a single species, though studies have shown that having more varieties can produce larger and earlier fruits. So if you have a favorite variety you can go crazy with the single plant though a little diversity seems to always be a good thing.
When it comes to pest control the biggest pest is birds. You can control them by laying some netting on the plants, though in my personal opinion that just gets in the way of me getting my snacks so I opt for the lazy approach and just plant more plants and share with “neighbors”. Worse case I end up with a backyard with some bushes that look much nicer than my current evergreens, and I always can take up bird watching.
One of the most important parts to being successful with your little blueberry plants is soil preparation. The plants need to have an acidic soil and their roots like to remain moist, but not drowning in water. Given my area has an abundance of clay in my backyard, I naturally do not have either of these requirements. To give the plants a head start I dug a 1 foot wide/deep hole and filled it with peat moss and mixed with a few handfuls of compost. Not only will this retain water well, but the peat moss is also naturally acidic and will be a nice haven for a large family of worms in the next few years to add some awesome natural fertilizer (worm castings) Last I purchased I box of organic blueberry fertilizer which provides the primary and trace minerals as well as help keep the acidity of the soil up. I simply followed the directions on the box and watered the plants when there was a couple of days without rain.
Now some of you might be thinking, “hey it is fall why are you talking about growing blueberries” Well this is the “Cheap Vegetable Gardener, right now is a great time to visit your local nursery to pick up some of their “old overgrown” blueberry plants at bargain prices which you can plant now and enjoy some delicious berries next spring/summer.
Tags: birds, cheap, compost, led, organic vegetables, outdoor plants, vegetables, worms
Alternative seed saving containers
15.2 years ago cheap, seed saving, seed storing
When I am storing seeds for months at a time my homemade paper seed packets work great, but for seeds I seem to use many times throughout the year I was looking for a new option.
My solution was small plastic/metal resealable containers. They are small and do not take up too much extra space and securely close so now worries of reaching into my pocket do find it full of seeds (had this happen more than once) They are also water resistant (if not waterproof) so now worries about setting these down on some moist soil soaking the seeds.
You probably have many of these containers lying around your house from other products (prescription, OTC drugs, food containers, etc)
Unfortunately (I guess fortunately) I do not need prescription drugs too often and wasn’t smart enough to save any of my past containers so I opted to get some from an online supplier. This particular one many options for specifically for seed saving containers at very reasonable prices. I am also considering using these when I share seeds with others as gifts.
What sort of creative options have you used to store your saved seeds?
Tags: cheap, garden seeds, vegetables
How to grow seeds in your garden
15.4 years ago cheap, seed saving, seeds
Because of a strange heat wave we had in June, I seem to be growing more seeds than vegetables this year. Now as they say when life gives you lemons, make lemonade. In that spirit I am planning on increasing the number of plants I will allow to completely go to seed this year.
I have always saved cilantro seeds, the first time it was almost an accident my daughter liked the pretty white flowers and after neglecting my garden at the end of the summer I had perfectly dried cilantro seeds on the plant. Free and renewable supply of seeds, what could be better. If I don’t have you convinced here are some more reasons:
Cheap: You really can’t beat free. With the price of seeds increasing depending on the variety of seeds you grow this could save you a considerable amount of money per year.
Easy: The creation of seeds of seeds is a completely natural process that has been happening for millions of years. In many cases you can do practically nothing other than harvest the seeds before the birds do.
Natural selection: With a little attention you can hand select only your best plants to harvest seeds from. If the plant survived to produce seeds it has to be at least a little disease tolerant and if you intentionally pick plants that bolted early you can also establish your own slow bolting variety.
Limited availability: Even with all the resources on the internet your favorite seed company may not always carry your favorite varieties or in some cases just a few seeds might be hard to come by. If you play your cards right you may even be able to make a few bucks selling your rare seeds.
Seed Exchange: If you collect seeds you more than likely will get more seeds than you need for the next 2-3 years from a single plant. This is a great supply to use for local or mail seed exchanges. Not only are you supplying someone else with seeds they need but also adding seeds to your collection which you can harvest and repeat the process again.
Growing sprouts: If you are paying for seeds growing sprouts for some plant varieties can be pretty expensive…unless your seeds are free. This is a good healthy way to use up some of those extra seeds you can’t get rid of any other way.
This year I am planning on harvesting spinach, pea, carrot, and radish seeds (along with my previous onions and cilantro) so stay tuned for more details.
Tags: birds, cheap, cilantro, garden seeds, outdoor plants, vegetables
Growing sprouts in a Mason jar
15.4 years ago cheap, kids, sprouting
My daughter was required to do a presentation which included an experiment using plants for school and of course her mother directed her to me. Given there was not a lot of time until the presentation I suggested that she grows sprouts, given you can go from seeds to a jar full of sprouts in less than a week.
Construction
You really can grow sprouts in almost anything. We chose a mason jar, though plastic storage containers, trays, or even fabric bags (just drip in water and hang)
The important thing is to provide plenty of airflow, if you don’t your seeds will produce an awful stank that you won’t want in your house let alone eat. We used a piece of an old pair of leggings, which we stretched over the opening of the jar and applied the mason jar ring….well that’s about it.
How to Grow Sprouts
The process starts with seed selection. You can grow any seed as a sprout though you may not want to eat them. Cilantro is a good example it will grow great but the root of a cilantro/yellow mustard
Take about a tablespoon of seeds and soak in room temperature water with a couple drops of liquid fertilizer overnight.
In the morning drain, rinse and let sit out of direct sunlight. Repeat the drain/rinse process once a day (twice a day if your sprouts begin to smell) During the first couple days it is advisable to shake and/or roll the jar on its side to allow the seeds to spread out a little. Doing this simple procedure within about a week you should have a jar full of fresh healthy sprouts.
Why grow sprouts?
Fun: Great for kids with limited attention spans. Within a day or two they can see their seeds sprout growing more and more each day. It is also a great way to keep your sanity during those long winter months.
Cheap: For mere pennies you can grow pounds of greens.
Nutritious: These little sprouts pack a ton of nutrients for their little size.
Easy: The process is pretty fool proof, just rinse with water, set them on your counter, and eat. What could be easier
Tags: cheap, cilantro, garden seeds, garlic bulbs, outdoor plants
