Square Foot Gardening Tomatoes Spacing
Last year, inspired by some amazing organic gardens we visited, we experimented with new ways to grow tomatoes.
Our tomato plants were more vigorous and healthier than they have ever been!
In a 20 square foot area, we harvested over 100 lbs of delicious tomatoes from just six "Early Girl" tomato plants , a popular variety that can be easily found in most nurseries.
![5 proven secrets we learned from experts on how to grow tomatoes & harvest over 100 lbs in 20 square feet! Lots of care tips on soil & free trellis plan!](https://www.apieceofrainbow.com/wp-content/uploads/2017/01/grow-tomatoes-5-secrets-apieceofrainbowblog-1.jpg)
Today I am excited to share with you the tips and tricks we learned on how to grow tomatoes like an expert and get a huge harvest!
* Some resources in article are affiliate links. Full disclosure here .
Tips number 1, 3 and 4 are something new we tried that made all the difference!
Before we go into details of the tomato growing techniques, these are a few basics that apply to all vegetable gardening: plenty of sun, good soil, and productive varieties that are suited for your climate.
The easiest way to build great soil on any site is to create a simple raised bed. Here are lots of tips and tutorials on DIY raised bed gardening-
All about DIY raised beds.
Tomatoes come in determinate and indeterminate varieties, which is written on the plant label.
Determinate varieties are small compact growers with a short harvest season, so our tips 3 and 4 will not apply to these.
![DIY tall tomato cage trellis](https://www.apieceofrainbow.com/wp-content/uploads/2017/02/grow-tomatoes-gardening-trellis-growing-tomato-plants-cuttings-tips-ideas-apieceofrainbow-2.jpg)
Most of the great tasting and heirloom tomatoes (for example- "Early Girl", "Cherokee Purple", "Sweet 100", "Brandywine") are indeterminate , which means they continue to grow and produce tomatoes all along the stems throughout the growing season. These are the tomatoes we prefer to grow.
![big tall tomato plants growing on a garden trellis](https://www.apieceofrainbow.com/wp-content/uploads/2020/05/IMG_7678-691x1024.jpg)
Grow Tomatoes Secret 1 : Tomatoes love warm soil temperature.
"The earlier we plant, the sooner we get our first tomato, right? " Actually, no.
Tomatoes hate cool soil temperatures. The ideal soil temperatures to grow tomatoes are between 70 – 90 degrees Fahrenheit. (Note: if you garden where spring is already this hot, then skip this step!)
Temperatures dipping below 55 degrees Fahrenheit stops plant growth. The less active the growth cycle, the more likely the plants will have insect and disease problems.
![grow tomatoes tip 1: black plastic to heat soil for tomato plants](https://www.apieceofrainbow.com/wp-content/uploads/2017/01/grow-tomatoes-5-secrets-apieceofrainbowblog-13.jpg)
In most places, the night time temperatures can be quite cold in March, April, or even May.
To solve this problem, we used the plastic mulch method which we learned from amazing gardeners who grow tomatoes successfully even in challenging climates. ( Some of the helpful resources are affiliate links. Full disclosure here. )
Open up a few black plastic trash bags, lay them on top of the soil, secure along the edges with wood planks or rocks. Cut 3″ to 4″ diameter holes for the plants. We planted our tomatoes on a 30″x30″ grid.
![plant tomato seedlings under plastic mulch](https://www.apieceofrainbow.com/wp-content/uploads/2017/01/grow-tomatoes-5-secrets-apieceofrainbowblog-31.jpg)
Our black plastic trash bags worked great! You can also buy plastic mulch for tomatoes such as these.
The plastic was able to raise the soil temperature by 10 – 20 degrees Fahrenheit during the day, and hold the heat better at night, which was perfect for most spring days and nights when temperatures are between 45 – 65 degrees.
As the weather gets warmer by summer, the plants will have enough leaves to shade the plastic and prevent it from getting too hot.
We could tell how happy the plants were. In a couple of weeks, the seedlings were growing rapidly and looking super healthy!
Grow Tomatoes Secret 2 : Plant deep.
![](https://www.apieceofrainbow.com/wp-content/uploads/2017/01/grow-tomatoes-5-secrets-apieceofrainbowblog-27.jpg)
Prune off the bottom leaves and plant about 2/3 of the plant underground.
Tomato plants have this amazing ability to grow roots along the buried stems, which will make the plants stronger.
Because tomatostems grow roots easily, we can propagate new ( and free!) plants in just a week from stem cuttings of a big plant! Tutorial here-
![How to root tomato cuttings in just one week! Now you can multiply lots of tomato plants quickly and for free! | A Piece Of Rainbow](https://www.apieceofrainbow.com/wp-content/uploads/2016/02/propagate-tomatoes-apieceofrainbowblog-a.jpg)
Secret 3 : Prune tomato plants fearlessly.
Have you grown a huge tomato plant, only to get a ton of leaves and very few fruits? Then it just wilts and dies?
The best solution is to prune tomato plants regularly.
Pruned plants allow more sun light to come through and more air flow. The leaves dry faster after a rain, so they are less susceptible to the diseases such as blights.
![where and how to prune tomato plants](https://www.apieceofrainbow.com/wp-content/uploads/2017/01/grow-tomatoes-5-secrets-apieceofrainbowblog-20.jpg)
The orange arrow indicates the main stem, and the blue arrows indicate the side shoots / suckers which can grow into a stem. The goal is to leave only 1 or 2 stems growing ( some say up to 4 stems ), and prune off all the suckers.
It is very easy to miss one until it has grown too big. So do this at least twice a week, and be ruthless!
![grow tomatoes with thick healthy stem 1 inch thick](https://www.apieceofrainbow.com/wp-content/uploads/2017/01/grow-tomatoes-5-secrets-apieceofrainbowblog-25.jpg)
See how thick and healthy this main stem is?Instead of growing 50 to 100 stems, the plant is able to concentrate it energy on the main stem and keep producing fruits. ( This method is suited to indeterminate tomatoes which we talked about at the beginning.) Continue To Next Page…
Secret 4 : Grow tomatoes vertically to improve air circulation and maximize sunlight.
![DIY tomato trellis support with wood](https://www.apieceofrainbow.com/wp-content/uploads/2020/05/IMG_6954-761x1024.jpg)
The other new thing we did which made a huge difference is to build a tall trellis and tie strings between the top and bottom rail to wrap the tomato vines around as they grow.
![how to build a tomato trellis , free plan](https://www.apieceofrainbow.com/wp-content/uploads/2020/05/grow-tomatoes-5-secrets-apieceofrainbowblog-30.jpg)
We made our tomato trellis from pallets, using 2x4s as the main X frame and 1x4s to join them together. Here are tips on where to find and how to take apart pallets!
All about pallets.
As mentioned in tip #3 we prune each plant to keep only two stems growing. Each stem wraps around a string, keeping good air circulation and making any pruning and harvesting super easy.
![strings on DIY tomato trellis, works better than tomato cages](https://www.apieceofrainbow.com/wp-content/uploads/2017/01/grow-tomatoes-5-secrets-apieceofrainbowblog-18.jpg)
We used thin jute twine but they deteriorated toward the end of the season. We will use heavy duty garden twine in future.
![ripe tomatoes in garden](https://www.apieceofrainbow.com/wp-content/uploads/2017/01/grow-tomatoes-5-secrets-apieceofrainbowblog-6.jpg)
( This method is suited to indeterminate tomatoes which we talked about at the beginning.)
Secret 5 : Keep tomato plants dry.
Gardeners who grow tomatoes know how quickly blights can kill all the plants. To prevent blights, water the plants at soil level and keep soil or water from getting onto the leaves.
![diy tall tomato cage for growing vertical](https://www.apieceofrainbow.com/wp-content/uploads/2017/02/grow-tomatoes-gardening-trellis-growing-tomato-plants-cuttings-tips-ideas-apieceofrainbow-1.jpg)
It is easy to water under the plastic mulch: just insert a hose from one end, or install a soaker hose before laying down the plastic.
We planted these tomatoes in early May. Believe it or not, our coastal San Diego weather is not the best for growing tomatoes.
Because of these new methods we tried, we were able to get a much bigger harvest than ever in not-so-ideal conditions.
Between July and early September, we harvested over 100 lbs of tomatoes, usually around ten tomatoes at a time.
![healthy tomato plants under a diy trellis](https://www.apieceofrainbow.com/wp-content/uploads/2019/05/growing-tomatoes-gardening-trellis-grow-tomato-plants-cuttings-tips-ideas-apieceofrainbow.jpg)
We did let some plants grow to 5 stems which lead to disease build up at the end. I think by keeping the plants better pruned we can actually grow over 200 lbs in 20 square feet!
You may also love: DIY strawberry tower with built-in reservoir!
Here are a few additional resources on growing tomatoes you may like to explore:
Bonnie Plants guide to growing tomatoes in different climates, the Almanac's guide on planting and harvesting tomatoes, how to build sturdy tomato cages via instructables, one of our favorite tomato seed source Baker Creek, and our collection of 20+ favorite DIY trellis ideas for your veggie garden!
![21 beautiful and DIY friendly garden trellis and structures, such as cucumber trellis, bean teepees, grape tunnels, pergolas, screens, etc. Create productive and enchanting garden spaces with trellis planters, panels, and more! - A Piece Of Rainbow](https://www.apieceofrainbow.com/wp-content/uploads/2017/03/21-trellis-garden-structures-apieceofrainbow.jpg)
20+ favorite DIY trellis ideas for your veggie garden!
If you have other great tips, feel free to share in comments or tag us on instagram @apieceofrainbow! Happy growing! Wish you lots of great tomatoes this year!
Square Foot Gardening Tomatoes Spacing
Source: https://www.apieceofrainbow.com/grow-tomatoes-100-lbs-20sf/
Posted by: colemangingaid.blogspot.com
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