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Grow Cherry Tomatoes Indoors: Best Tips for a Successful Indoor Garden

Published on
May 12, 2024
Grow Cherry Tomatoes Indoors: Best Tips for a Successful Indoor Garden
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Are green onions and scallions the same thing?

Yes, green onions and scallions refer to the same vegetable. The terms are used interchangeably in different regions.

Can I regrow green onions from kitchen scraps?

Yes, you can regrow green onions from kitchen scraps. Place the white bulb ends with roots in a glass of water, ensuring the roots are submerged. Change the water regularly, and new growth will emerge from the top.

How do I prevent my green onions from bolting?

Bolting occurs when green onions prematurely produce a flower stalk. To prevent bolting, avoid planting them during the hottest part of the year and keep the soil consistently moist.

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Grow Cherry Tomatoes Indoors: Best Tips for a Successful Indoor Garden

cherry tomato varieties infographics

Growing my own food brings me immense joy but one of my all-time favorite gardening adventures would be growing those adorable, bite-sized cherry tomatoes. Now, I'm no expert, but I've learned a thing or two about cultivating these juicy delights over the years. So, if you're ready to start your journey to green thumb success, stick around as I walk you through the step-by-step process of growing your very own cherry tomatoes.

Choosing the Right Variety

First, it's important to understand the difference between determinate and indeterminate tomatoes. Determinate types grow to a certain height and then stop, while indeterminate types keep growing and producing fruit until they are killed by frost or disease.

Now, for indoor gardening, determinate types are often preferred because they're more compact and easier to manage in limited spaces. Plus, they tend to give you a big harvest all at once, which can be pretty convenient.

Cherry Tomato Varieties for Indoors

There are many different varieties of cherry tomatoes to choose from, but some are better suited for indoor growing than others. Here are a few of my favorites:

  • Sweet 100: This classic cherry tomato variety is known for its high yield and sweet, juicy flavor. It's also disease-resistant and easy to grow, making it a great choice for beginners.
  • Tiny Tim: As its name suggests, this cherry tomato variety stays small and compact, making it perfect for indoor gardening. It produces lots of sweet, flavorful fruit and can be grown in containers as small as six inches in diameter.
  • Tumbling Tom: This cherry tomato variety is a great choice for hanging baskets or upside-down planters. It produces lots of small, sweet fruit and has a cascading growth habit that looks beautiful in any space.
  • Red Robin: If you're looking for a cherry tomato variety that's as ornamental as it is delicious, then go for Red Robin. This dwarf cherry tomato variety is prized for its compact size and striking foliage, making it a beautiful addition to any indoor garden.
  • Micro Tom: For those seeking the ultimate in petite cherry tomatoes, Micro Tom is the perfect choice. As the world's smallest tomato plant, Micro Tom is well-suited for tiny spaces like windowsills or desktops. Despite its size, this pint-sized plant produces a surprising number of tiny, sweet tomatoes that are bursting with flavor.

Seeds or Seedlings

The first thing you need to decide is whether you want to grow from cherry tomato seedlings or seeds. If you're new to gardening, I'd say go for the seedlings—they're easier to care for and will give you a head start.

If you decide to grow your cherry tomatoes from seeds, you'll need to start them indoors about 6-8 weeks before your last frost date. Be sure to follow the instructions on the seed packet carefully, as different varieties may have different requirements. You can find seedlings and seeds at your local nursery or garden center, or you can order them online.

Required Supplies

required materials for planting cherry tomatoes such as a container or pot, potting mix, fertilizer, watering can, grow light

To grow cherry tomatoes indoors, you'll need a few supplies. Here's what you'll need:

  • A container: You'll need a container that's at least 12 inches deep and 12 inches wide. You can use a plastic or ceramic pot, or you can make your own container out of a 5-gallon bucket or other large container.
  • Soil: You'll need a high-quality well-draining potting mix that's rich in nutrients. Look for a soil that's specifically designed for container gardening.
  • Fertilizer: You'll need a fertilizer that's high in nitrogen, as cherry tomatoes need a lot of nitrogen to grow. Look for a fertilizer that's specifically designed for tomatoes.
  • Grow lights: If you don't have a sunny window, you'll need to invest in some grow lights. You can find grow lights online or at your local garden center.
  • Watering can: You'll need a watering can to water your plants regularly.

Choosing the Right Spot

plants by windowsil under good sunlight

Cherry tomatoes thrive in sunny spots, so choose a location in your home that receives plenty of sunlight throughout the day. Aim for at least 6-8 hours of direct sunlight for optimal growth. If you're short on space, no worries! Cherry tomatoes are versatile and can be grown in containers on patios or balconies, as long as they have access to ample sunlight.

Preparing the Soil

hands in gloves preparing soil

Next up, let's get our hands dirty (literally). Cherry tomatoes prefer well-draining soil with a slightly acidic pH level (around 6.0-6.8). Now, you've got options here. You can snag a ready-made potting mix from your local garden center or whip up your own mix with peat moss, perlite, and vermiculite. Before you pop those plants in, give your soil a boost with some organic goodies like compost or aged manure. This will provide your cherry tomatoes with the nutrients they need to thrive throughout the growing season.

Take note also that size matters when it comes to pots. Cherry tomato plants typically require a pot that is at least 12 inches in diameter and 12 inches deep to give those roots plenty of room to stretch out. Whether you go for terra cotta, plastic, or fancy ceramic, just make sure there's some drainage action happening at the bottom. We don't want those roots drowning in a soggy mess, do we?

Planting Time

seed tray with soil inside

Now comes the fun part: planting your cherry tomatoes! Whether you're starting from seed or transplanting seedlings, the process is relatively straightforward.

If starting from seed, sow them indoors 6-8 weeks before your last frost date. I recommend using a seed-starting mix. Fill a seed tray with the mix and sprinkle the seeds on top. Cover the seeds with a thin layer of the mix and water gently. Keep the tray in a warm and bright location, and make sure the soil stays moist. The seeds should germinate in about a week.

Once the seedlings have grown their first true leaves, I suggest thinning them out to one or two per cell or pot. This will give them enough space to grow and develop strong roots. Keep them in a bright location and water them regularly. You can also use a grow light to provide additional light if needed.

Transplanting Seedlings

transplanting a plant from a small container to a large one

When the seedlings are about 6-8 weeks old and have grown to about 3-4 inches tall, it's time to transplant them into larger pots. Fill the pot with a high-quality potting mix and make a hole in the center.

Gently remove the seedling from its cell or pot and place it in the hole. Make sure the top of the root ball is level with the soil surface. Fill in the gaps with more potting mix and press lightly. Water the plant thoroughly and place it in a bright location. You can also use a stake or trellis to support the plant as it grows.

Watering Wisely

watering can watering a plant

Watering is key to a successful cherry tomato harvest, but it's essential to find the right balance. These guys like their soil consistently moist, so aim for a good soak once or twice a week, depending on how thirsty they seem and what the weather's up to. I recommend checking the soil moisture level every day or two. Just stick your finger in about an inch deep. If it feels dry, it’s time to water.

When watering your cherry tomatoes, make sure to water at the base of the plant rather than from above. This will help prevent water from splashing onto the leaves, which can cause fungal diseases.

Lighting Considerations

light requirements a natural light environment side by side an artificial light environment

As mentioned earlier, cherry tomatoes are typically sun worshippers, so be sure to provide them with plenty of sunlight. If you're growing them in containers, consider placing them in a location that receives full sun for the majority of the day.

Natural Light Requirements

As someone who grows cherry tomatoes indoors, I've learned that they need a lot of natural light to thrive. Ideally, they require at least six hours of direct sunlight per day. But if you don't have access to a sunny windowsill or balcony, you may need to consider artificial lighting options.

Artificial Lighting Options

There are many types of artificial lighting options available—fluorescent lights, LED lights, and high-intensity discharge (HID) lights.

Fluorescent lights are a good choice for those on a budget. They're energy-efficient and provide a good spectrum of light for tomato plants. LED lights, on the other hand, are a bit pricier upfront, but they last longer and use less energy. Plus, they keep things cool with less heat, which is great news for those cozy indoor spaces. HID lights are the most expensive option but provide the most intense light. They're ideal for larger growing spaces or for those who want to grow a large number of cherry tomato plants.

No matter which artificial lighting option you choose, just remember to keep those lights shining bright for at least 12-16 hours a day. This will help ensure that your cherry tomato plants receive enough light to grow and produce fruit.

Care and Maintenance

plant care and maintenance pruning shears with hands

Fertilizing Cherry Tomatoes

Cherry tomatoes are heavy feeders, which means they require regular fertilization to produce a bountiful harvest. You can use a balanced fertilizer every two weeks or a slow-release fertilizer at the beginning of the growing season. For my tomatoes, I use a balanced fertilizer with equal parts nitrogen, phosphorus, and potassium. I do this every two to three weeks during the growing season.

Don't forget to follow the instructions on the package carefully because over-fertilizing can lead to burned roots and other problems. In addition to using a balanced fertilizer, you can also add organic matter to your soil to help improve its fertility like compost, aged manure, and worm castings.

Temperature and Humidity Control

These plants are warm-season plants that thrive in temperatures between 70-85°F (21-29°C). Now, they can handle a bit of chill, but it's best to hold off planting them outdoors until all danger of frost has passed. If the temperature is too low, you can use a space heater to heat up the room. On the other hand, if the temperature is too high, you can use a fan or air conditioner to cool down the room.

You should also know that they like a bit of moisture in the air, but not enough to feel like a steam room. Be sure to give them some space to breathe with good airflow to ward off any pesky fungal diseases like powdery mildew. A humidifier can lend a hand if things are feeling a tad dry, or a gentle mist from a spray bottle can work wonders. And if you're feeling extra hospitable, a little water tray nearby can help create the perfect cozy atmosphere for your tomatoes to thrive in.

Pruning for Growth

Maintaining my indoor cherry tomato garden has taught me the importance of pruning for healthy growth. It involves snipping away those suckers—the small branches that sprout between the main stem and its branches.

For the job, I keep it simple with a sharp pair of scissors or pruning shears. I give those suckers a clean cut as close to the main stem as possible. It's become a bit of a weekly ritual for me—I like to give them a little trim every seven days or so to keep those suckers from getting too big and hogging all the nutrients from the main stem.

Supporting Structures

cherry tomato supporting structure cage vs stake

Providing your plants with a little structure is key to keeping them standing tall and strong. They can get pretty hefty as they grow, so a little help goes a long way in preventing any tumbles or breaks.

You have two options: tomato cages or stakes. Tomato cages are easy to pop around the plant and offer support for the whole gang. Stakes, on the other hand, give individual branches a little extra love and attention, perfect for those plants going solo on a single stem.

When it comes to tomato cages, I like to get them in place early, before the plant gets too big. That way, they can grow up alongside the cage, leaning on it for support as they grow. Stakes, on the flip side, gets placed next to the stem, gently tied to the branch with a bit of twine or string.

Pest and Disease Management

As much as we love our cherry tomatoes, pests and diseases can be a real problem when growing them indoors. Here are some tips to help you manage these issues:

Prevention

Prevention is key to avoiding pest and disease problems. Keep your indoor garden spick and span by regularly tidying up, removing any dead or diseased leaves or plants. And remember, moderation is key—avoid overwatering your plants, as it can turn your garden into a hotspot for pests and diseases to thrive

Common Pests

Some common pests that can affect cherry tomatoes include aphids, spider mites, and whiteflies. The best way to get rid of them is by using insecticidal soap or neem oil. You can also introduce beneficial insects like ladybugs or lacewings to help control their population.

Common Diseases

Diseases like powdery mildew, leaf spot, and blight can sometimes crash the party. To prevent these, give your plants some breathing room. Good air circulation is key, so don't overcrowd them. And if you do spot any signs of trouble, like those telltale spots or patches, don't hesitate to take action. Remove any infected leaves or plants pronto to stop the spread in its tracks.

Pollination Methods

Since indoor environments lack the natural pollinators like bees, it is important to pollinate the flowers manually.

One of the easiest methods? Give those plants a gentle shake or tap the flowers with a soft brush. That will help the pollen spread from the stamen to the pistil, ensuring those flowers can work their magic.

Another excellent way to pollinate is by using a cotton swab or a small paintbrush to transfer pollen from one flower to another. This method can be handy if you're working with just a few plants.

Now, these plants are pretty self-sufficient when it comes to pollination. But still, a little human touch never hurts to ensure a bumper crop. Plus, it's a great excuse to get hands-on with your garden.

When to Harvest

cherry tomatoes inside a plate

You'll know they're ready when they're firm to the touch and ripen into red, yellow, or orange color. For the juiciest and most flavorful tomatoes, it's best to wait until they're fully ripe. Trust me, it's worth the wait.

How to get those beauties off the vine? Easy. Just give them a gentle twist with your fingers, and they'll pop right off. Or if you prefer a more precise approach, grab a pair of scissors or pruning shears and snip the stem just above the fruit. Just be sure to handle them with care to avoid any damage to the plant or its neighboring tomatoes.

Storing Cherry Tomatoes

They are best stored at room temperature, away from direct sunlight. If you have harvested more than you can use, you can store them in a cool, dry place for up to a week.

If you want to store them longer, you can freeze them until they are solid, then transfer to a freezer-safe container or bag. They can be stored for up to six months.

Another way is to can them. You will need to sterilize jars and lids, pack the tomatoes into the jars, and process them in a boiling water bath. There are many recipes and tutorials available online that can guide you through the canning process.

FAQs

Q: Can indoor cherry tomato plants be grown hydroponically? A: Yes, they can be grown hydroponically, which involves growing them in a soilless medium and providing nutrients through a water-based solution. Hydroponic systems can be an efficient way to grow cherry tomatoes indoors, as they allow for precise control over nutrient levels and water delivery. Popular hydroponic methods for cherry tomatoes include nutrient film technique (NFT), deep water culture (DWC), and drip irrigation systems.

Q: Can I save seeds from indoor cherry tomatoes for future planting? Yes. To do so, simply select ripe, healthy tomatoes from your plants and remove the seeds from the flesh. Rinse the seeds thoroughly to remove any pulp, then spread them out to dry on a paper towel or plate. Once dry, store the seeds in a cool, dry place in an airtight container until you're ready to plant them. Keep in mind that seeds saved from hybrid cherry tomato varieties may not produce plants identical to the parent plant, so it's best to save seeds from heirloom or open-pollinated varieties for consistent results.

Q: Can indoor cherry tomato plants be grown alongside other plants? Yes, as long as they have similar light, water, and temperature requirements. Some suitable companions for cherry tomatoes include herbs like basil, oregano, and parsley, which can benefit from the warmth and humidity provided by the tomato plants.