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How far apart you space your tomatoes can have a big impact on a successful garden.
Tomatoes are the most popular vegetable among home gardeners. Not only are they versatile in the kitchen, but tomato plants are also easy to grow and produce high yields. And home-grown tomatoes taste far superior to store-bought fruits. For a healthy crop, it is important to consider tomato plant spacing at planting time. Several factors influence how far apart to plant tomatoes, including plant type, staking system, and gardening style. Let’s take a closer look at proper tomato plant spacing for each growing style.
Why Tomato Plant Spacing Is Important
Tomato plants require plenty of room to grow. Adequate spacing improves airflow and sunlight, ensures each plant gets the water and nutrition it needs, and provides room for supporting the plant and harvesting.
Moisture And Nutrition
Adequate spacing reduces competition between the root systems of plants, ensuring each plant can access the water and nutrients it requires to support developing foliage and fruits.
Adequate Sunlight
Above the soil surface, plants need ready access to sunlight to drive photosynthesis. This helps plants reach their growth potential since not enough light can stunt growth or fruit production. Allow enough space between plants to prevent one plant from shading another. Orienting your rows north to south can also help maximize access to sunlight.
Disease Prevention
Proper plant spacing is important to ensure air circulates freely around plants. Tomato plants are susceptible to a number of diseases. When plants are set too close together, air circulation is diminished, which encourages a more humid plant canopy that favors disease. Wet leaves do not get a chance to get enough sunlight to dry out, which can lead to fungal diseases. Providing ample space between rows helps to encourage airflow.
Pest Prevention
Proper spacing can help prevent the spread of any pests that may be affecting a plant. When crowded too closely, pests may spread to a neighboring crop or plant. Spacing also helps you see a pest problem sooner and take action to eliminate them.
Tomato Spacing By Plant Type
Tomatoes are classified into two main groups, determinate and indeterminate, according to their growth and fruit production habits. The type of tomato plant and whether it is supported with staking or caging factors into spacing. Staking or caging tomato plants is recommended because it provides many benefits—including space saving and keeping plants from coming in contact with the ground, which reduces disease risk. Plants supported by a trellis or cage can be spaced closer together than unsupported plants, as their growth is directed upward.
Determinate Tomatoes
Determinate tomatoes are relatively compact and bushy compared to indeterminate tomatoes. Their development can be divided into two phases. First, they produce foliage. Plants grow to a certain height and stop growing, refocusing their energy on the second stage of development—flowering and fruiting. They tend to produce a large crop of fruit all at once. Determinate-type tomatoes need plenty of space between plants to accommodate their bushy growth. Determinate tomatoes are typically supported using tomato cages or the stake-and-weave method. You can space supported determinate tomato plants about 2 feet apart. Unsupported determinate tomatoes can be planted farther apart, about 2 to 2 1/2 feet apart in rows spaced 4 feet apart.
Indeterminate Tomatoes
Providing support for indeterminate tomatoes makes a big difference in plant spacing. Indeterminate tomatoes can be supported through trellising, the stake-and-weave method, or cages. Supported plants can be spaced much closer together than unsupported plants, at just 1½ to 2 feet apart. This allows you to produce many more fruits in the same space.
Indeterminate tomatoes grow, flower, and set fruit continuously throughout the growing season. Plants tend to grow taller than determinate types and are commonly pruned to maintain a single central stem. While it is best to cage or stake indeterminate tomatoes, they can be grown without support. Space unstaked indeterminate tomato plants 3 to 4 feet apart with 3 to 5 feet between rows.
Tomato Spacing By Garden Type
The tomato plant spacing described above is typical of a traditional vegetable garden and may not fit every growing situation. You may need to adjust spacing depending on the type of garden you have.
In The Ground
Staked or caged tomatoes planted in the ground typically have more room than other types of gardens. Tomatoes can be planted in rows and should have 18 to 24 inches between each plant and 36 inches between rows.
Raised Beds
Raised beds are typically 4 feet wide. Using the above spacing allows for only a single row of tomatoes per bed. Gardeners looking to maximize production in raised beds can adopt the plant spacing used in intensive bed gardening, a growing system that produces crops on 4-foot-wide mounded rows in the garden. Stagger two rows of staked tomato plants along the length of the raised or mounded bed, giving each plant a 2-foot circle in which to grow.
Containers
Container-grown tomato plants also need adequate space for growth. This includes selecting an appropriately sized container, at least 5 to 10 gallons or 18 to 24 inches, as well as setting plant containers far enough apart to allow air to flow around each plant.
Square-Foot Gardens
Square-foot gardens are another popular method for growing vegetables. These systems allow a single 1-foot square per tomato plant, which is rather tight spacing. When using this method, it is best to grow indeterminate-type tomatoes, setting them along the north edge of the garden and using a support system to direct their growth upward.
Signs Tomatoes Are Spaced Too Close Together
When tomato plants are small, there may appear to be room for one more plant. While they may grow and produce fruit, the plants may show signs of improper spacing. Tomato plants that are overcrowded may have slow or stunted growth, decreased fruit production, signs of disease, and yellowing or wilting leaves. If the leaves of neighboring tomato plants are touching, they are probably too close.
You can prune the tomato plant to remove excess leaves and allow for more airflow. Keep the plant in check by pruning suckers that develop between where a leaf meets the main stem. If possible, you may be able to transplant one of the plants to provide more space. The plant will need time and extra water to adjust to a new location.
Frequently asked Questions
Can tomatoes be planted too far apart?
Proper spacing will help tomato plants to be healthy. It allows for plants to share nutrients, and it's an efficient way to use garden space. Having multiple plants can speed up self-pollination, but it's also OK to have a single plant.
How far apart should you plant cherry tomato plants?
Space cherry tomato plants 2 to 3 feet apart. Vining varieties can be spaced 3 to 4 feet apart to accommodate their sprawl.
Can I plant two tomato plants in the same hole?
While it may save space to plant two tomatoes in one hole or container, it is generally not recommended. Space individual plants apart and stick to one plant per pot if possible. A crowded planting site or pot will cause the plants to compete for moisture, space, and nutrients.
Read the original article on Southern Living
