When should tomatoes be planted outside


Growing Tomato Plants | General Planting & Growing Tips – Bonnie Plants

Learn how to grow tomatoes. Get tips about growing tomatoes in the ground, raised beds, or containers. Care for tomato plants from planting to harvesting.

Choosing tomato varieties can be confusing because there are so many, so use our Tomato Chooser to help you pick the best for your garden. Our article "Learn Tomato Terms" explains some basic (but important) tomato terms, such as hybrid, indeterminate vs. determinate, and VFN (disease resistance). It's a good idea to grow a range of varieties, including at least one or two disease-resistant types, since, of all veggies, tomatoes tend to be the most susceptible to disease.

How to Plant and Care for Tomatoes

How to Troubleshoot Tomato Problems

 

How to Harvest and Store Tomatoes

Tomato plants grow long roots, which is why it’s so important to water deeply.A soaker hose waters a tomato plant well and without waste. Cover with mulch once it's in place.If you can, choose a spot somewhat protected from wind. This is especially helpful if you're growing indeterminate varieties (like the one on the far right), which will send long branches in every direction.Tomato blossoms can be temperamental. If it's too cool (below 55˚) or too hot (above 90˚), the flowers of most varieties will pause from setting fruit until the temperature is back where they like it.This cluster of tomatoes shows several stages of ripening. Tomatoes ripen to different colors depending on the variety.These great little yellow cherry tomatoes, which are actually orange at peak flavor, will add color to salads and fresh pasta dishes, if they make to the table. They are so sweet that they might all get eaten in the meantime. Seriously.

FAQs

Your plant tags say to plant tomatoes deep: two-thirds of the plant underground. Is that really a good practice?

Yes, we recommend this because the more plant you put under the soil, the better the root system. The buried stem of a tomato plant will sprout roots. However, this is not true for all vegetables, only tomatoes and tomatillos.

The tag says full sun, but in Arizona with temperatures reaching over the 100 degree mark, is that going to be an issue with this plant?

We recommend that you give your tomatoes some afternoon shade in summer. They need some relief.

What is meant by "maturity is reached in __ days"?

The maturity is the number of days from planting the seedling until the fruit is ready to pick. This varies a little with weather and region, but the "days to maturity" is a good way to see what will be ready early, mid, and late season.

What size cage should I use for my tomato plants?

Most tomatoes work best with a 5- to 6-foot trellis, stake, or cage. Buy the largest cage possible or make your own from concrete reinforcement wire. The vines of indeterminate tomatoes can get longer than 6 feet, but just let them climb to the top and droop over and down if that doesn't bother you. Otherwise, you'll be harvesting with a ladder!

When the plant says full sun, what exactly does that mean?

Full sun means no shade all day, but in many cases in the summer, that’s too much. In hot climates, herbs and some vegetables appreciate a little shade in the mid to late afternoon.

Is it a good idea to always stake or cage my tomatoes?

Yes. Staking tomatoes helps to increase yield and prevent rotting and diseases.

Can I plant one tomato plant in a five-gallon bucket on my patio? How large should the container be for a tomato?

Yes, a 5-gallon container is the minimum size for a tomato plant. A container should be at least 18 inches wide at the top for a tomato, preferably 24 inches for an indeterminate tomato plant. Also, make sure your container has drainage holes.

What do the letters VFFN stand for in the names of your tomatoes?

These letters represent problems that a variety resists, which means that it should not succumb to the problem. V=Verticillium wilt, F and FF=Fusarium wilt races 1 and 2, A= Alternaria leaf spot. The N is for nematode resistance; nematodes are not a disease, they are tiny eel-like pests that ruin roots. There are other designations, too, which are included in the tomato variety descriptions in our online plant catalog.

Is there such a thing as nematode-resistant tomato plants?

Yes, many varieties are resistant to nematodes. Look for the "N" after the name, which stands for nematode resistance. To find these varieties, check the catalog section of our website. Our tomato descriptions list plants' resistance to nematodes and other problems.

Should I be pruning off the lower branches of my tomato plants? How far off of the ground should the lower branches be?

Pruning is not necessary, but some people do it to keep soil that might harbor diseases from splashing up on the leaves; 12 to 18 inches from the ground ought to do it.

Is it true that pinching off the flowers on the tomato plant helps it to produce more fruit?

It will not help production, but it could increase the size of the tomatoes left on the vine by a little bit.

I just planted my tomatoes and found out that it is too early. Should I put something over them to protect them at night?

Your tomatoes should be okay if you cover them to protect them from frost and cold, strong wind. Don't let the foliage touch the cover unless it is a material that doesn’t transfer the cold easily, such as bonded polyester row cover, a cardboard box, or a blanket. Avoid metal cans or plastic unless it does not touch the plants.

What causes tomatoes to turn black on the bottom?

They call that blossom end rot. It is thought to be caused by lack of calcium and drought stress. One way to add calcium is to lime the soil. This will help future crops. To help the current crop, purchase a calcium solution, such as Stop-rot, that you spray on the plants.

Do I have to replant tomatoes every year, or do the plants come back when the time is right?

Tomatoes are annuals that are killed by frost. They need to be replanted each year.

Caring for Tomatoes Growing Techniques Growing Tomatoes Planting Tomatoes Staking Tomatoes Tomatoes Urban Gardening Vegetables

Related products

Sweet Basil

This herb is known around the world for its wonderful fragrance and flavor. The key ingredient in classic Italian pesto, Sweet Basil has big leaves that are fast and easy to grow so that you can make your own pesto to freeze for year-round use. It loves hot weather, so always wait until all danger of frost is past before planting in the garden in the spring, then harvest before the weather starts to cool down in fall. Great for containers, but be sure to keep watered. If you were to grow only one herb, this should probably be it. Dried basil just doesn’t have the aromatic quality of the fresh leaves, which are often added at the last minute to many Asian dishes. Organic varieties are only available at retailers.

2-pack starter plants

19.3 fl oz pot volume

full Sun

Rosemary

A native of the Mediterranean region and member of the mint family, rosemary is a lovely, easy-to-grow plant with great culinary and ornamental value. A striking, upright evergreen shrub that is winter-hardy in zones 8 to 10, it fills the air with its fragrance as soon as you brush your hand across the leaves. The key to growing rosemary is a well-drained soil that stays evenly moist at first; as the plant takes root it becomes increasingly drought tolerant. It is also excellent for containers, which lets gardeners in colder climates to bring it indoors in the winter. Unlike most herbs, rosemary has a stronger flavor when fresh than when dried. Cut sprigs anytime for fresh use. Trim it regularly to encourage tender new stems or the plant will get woody. It's hard to have too much rosemary. The plant has so many uses that it will be enjoyed all the time. Just a few cut stems will fill a room with fragrance.

2-pack starter plants

25 fl oz pot volume

Full Sun

Cilantro

If you like the aromatic flavor of salsa served in Mexican restaurants, you'll like cilantro. The leaves have an instantly recognizable fragrance that fills a room when you cut them. Sometimes called Chinese parsley, its distinctive aroma and flavor is also part of Caribbean and Asian foods, lending flavor to recaito, salsas, curries, salads, chutneys, herbed butters, and meat marinades.Cilantro looks like flat leaf Italian parsley, but the leaves are thinner. It grows in a rosette of stemmy leaves that are ready to harvest shortly after planting. Young leaves have the best flavor, so be sure to harvest often. It is a fast-growing annual except in milder climates where it will overwinter. Cilantro grows tall and blooms at the end of its life, usually after the weather gets hot. After it blooms, harvest the seeds--they are what you buy in spice jars as coriander, another common ingredient in Asian cooking. You can grind the seeds or use them whole. Some gardeners also let the seeds drop to make new plants.Fall is a great time to grow cilantro in mild climates, as the plants are frost tolerant and love the cool weather in fall, winter, and early spring.Organic varieties are only available at retailers.

2-pack starter plants

19.3 fl oz pot volume

Full Sun to Partial Shade

Italian Flat Parsley

This Italian flat-leafed parsley has, of course, flat leaves, which distinguish it from the better-known curly-leafed parsley. At first the foliage might be easily confused with cilantro. However, its flavor is distinctly parsley, and it is favored for its deep flavor, which some say holds up better in cooking than curly parsley. It is popular in Mediterranean and Middle Eastern cuisine. Easy to chop, the nutritious flat leaves are high in iron and in vitamins A, C, and E. A high chlorophyll content makes it a natural breath sweetener, too. This is a great plant for containers, especially for fall and winter in zone 7 and south. Of course, you can also use it in vegetable and herb beds. In a flower bed it makes a nice, green leafy companion to small flowers such as pansies. It is also more tolerant of hot weather than curly parsley (which can struggle during the peak of summer) and is frost tolerant. Organic varieties are only available at retailers.

2-pack starter plants

19.3 fl oz pot volume

Sun to Partial Shade

Best Seller

Sweet Mint

Mint is one of the easiest herbs to grow. This one has extra large leaves that most cooks really like for chopping into sauces and drinks. Our sweet mint is grown from cuttings of a variety that comes to us from Israel, where mint is used in many dishes, from lamb to yogurt sauce. We think you'll like the rich spearmint flavor of this variety. This plant can go a little crazy, though, so be careful or it can spread farther than you might like. For this reason many people grow it in a pot. The long stems can even be trained on a little wire trellis, especially in spots where a a bit of shade causes it to stretch. Keep pinched to encourage tender new leaves.Organic varieties are only available at retailers.

2-pack starter plants

19.3 fl oz pot volume

Partial Shade

Dill

Sometimes known as the "fish herb" because it's such a delicious complement to fish, dill is used in many dishes, especially dips, soups, vinegars, and salads. Fernleaf is an improved, more compact variety of ordinary dill. A 1992 All-America Selections winner, this variety of dill continues to be a favorite for its garden performance and the fact that it offers a lot of foliage. It is also slower to set seed than ordinary dill varieties, which means that you can harvest foliage longer. As the flowers do appear, you can harvest the dill seed for making dill pickles or other dishes calling for dill seed. Dill leaves or seeds are used in the cooking of many cultures around the world.

2-pack starter plants

19.3 fl oz pot volume

AAS winner

Green Romaine Lettuce

This is the classic romaine. Its compact, dark green rosette of tall, upright leaves is slightly curly with white hearts and has a crisp, sweet flavor. Slow to bolt. Grows best in full sun, but will tolerate partial shade and even appreciates it in spring in hot climates. Organic varieties are only available at retailers.

2-pack starter plants

19.3 fl oz pot volume

Full Sun to Partial Shade

German Thyme

Thyme is an easy and practical herb to grow. Highly aromatic, it enhances meat dishes, eggs, cheeses, soups, and sauces, and it is a primary component of both Bouquet Garni and Herbes de Provence. Use it to elevate the flavor of good ole' beef stew, too. This tiny-leaved thyme is among the most aromatic, more so than larger-leafed varieties. You may also hear it called winter thyme, because it is one of the most cold hardy of all the different thymes. The leaves are evergreen to semi-evergreen, depending on the how far North it is growing. In the warm, humid climates of zones 9 and 10 it may suffer in the summer; in zone 10 it is best to lower your expectations and just consider it a cool season annual. Thyme is well suited for containers because of its size and the fact that it demands perfect drainage. Give it excellent drainage in a pot and good air circulation. Because it is low-growing and has thin stems and a wiry habit, don't crowd it because vigorous neighboring plants might choke it out. Upright-growing rosemary is a good companion.

2-pack starter plants

19.3 fl oz pot volume

Full Sun to Partial Shade

Garden Sage

Gardeners add the uniquely flavored leaves of common garden sage, an herbaceous perennial, to sauces, stuffings, poultry, pork, and sausage. It provides a lovely fragrance and flavor to a dish, especially when leaves are sautéed before adding. It is a good fall and winter plant in hot climates. Great for containers. Needs good drainage. Organic varieties are only available at retailers.

2-pack starter plants

19.3 fl oz pot volume

Full Sun

Italian Oregano

Savor classic Italian cuisine with the flavorful leaves of this oregano. An easy-growing plant for the garden or container, Italian oregano hails from the Mediterranean region. That means it thrives with lower humidity and well-drained soil. In the garden, use this oregano as an edging plant. Plants spread when happy, rooting along the stems. Harvest leaves or stems anytime during the growing season. Flavor is most intense just before plants flower. Trim plants often to keep flower formation at bay.

2-pack starter plants

19. 3 fl oz pot volume

Full Sun to Partial Shade

Chives

Easy to grow, chives pack a lot of flavor for their compact size. The plants form neat grass-like clumps of tubular leaves that contribute an onion flavor to salads, creamy soups, potatoes, egg dishes, and others. A wonderful addition to an herb garden. Great for containers, and also makes a neat border. Enjoy the light purple blooms in the spring--they are edible, too. Frost tolerant. Organic varieties are only available at retailers.

2-pack starter plants

19.3 fl oz pot volume

Full Sun

Lemon Thyme

A favorite of all thymes, lemon thyme is great in the garden and the kitchen. Easy to grow. Although it looks like German thyme (or English thyme), it definitely tastes and smells like lemon. Use lemon thyme in any recipe that calls for lemon, including marinades. Lemon thyme grows vigorously, so you can trim back to keep neat and compact and enjoy the trimmings! The glossy green foliage is easily sheared into a tiny hedge if you are looking to create a traditional knot garden. Evergreen in zones 8 and 9. This is a really pretty thyme that our customers brag about for its vigor and size. Lemon thyme looks great in a pot.

2-pack starter plants

19.3 fl oz pot volume

Full Sun to Partial Shade

Greek Oregano

Enjoy oregano aroma and flavor on pizza, in egg dishes, and in tomato sauces. Native to the Mediterranean region, this plant prefers climates with lower humidity, so keep the foliage and roots away from too much moisture. Give it good air circulation. For that reason, it is perfectly suited for a container. In the ground it makes a ground-cover-like mat. Harvest anytime, but especially as the stems begin to get tall and are getting ready to flower -- that is when the leaves are the most flavorful. Cut it back several times during the growing season to harvest the leaves from the stems.

2-pack starter plants

19.3 fl oz pot volume

Full Sun to Partial Shade

Spearmint Mint

Spearmint has strong flavor and fragrance that is released with simple bruising. It's the best mint variety for hot and cold drinks. Toss bruised leaves into ice water for a refreshing summer drink or add to iced tea. Spearmint is favored for flavoring beverages such as mojito. Also know as Yerba Buena. Spreading plant is great for containers. Tolerates light frost.

2-pack starter plants

19.3 fl oz pot volume

Full Sun to Partial Shade

Peppermint Mint

Many herbs are easy to grow, and this is definitely true for peppermint. Square stems tend to run rampantly over — and under — soil. In small garden spaces, it's best to tuck peppermint into a pot to curtail its wandering ways. Peppermint thrives alongside water gardens or in damp spots in the yard, but will also survive in drier soil. Lushest growth occurs in moist soil in partial shade. Crush fresh leaves into water for a refreshing beverage, or add to iced tea. You can also dry leaves for flavoring dishes or beverages and making desserts like meringues, cookies, or cakes. Pick leaves frequently. Plants open lavender blooms in late summer. Tolerates light frost.

2-pack starter plants

19.3 fl oz pot volume

Full Sun to Partial Shade

English Thyme

English thyme is a low-growing plant with fragrant leaves. This herb goes well with just about everything. Add it (fresh or dried) to blended herb mixtures, or use in soups, sauces, beans, meat dishes, and more. It’s also a great addition to potpourri or homemade soap. But thyme isn’t just useful inside the house, as it also makes a wonderfully aromatic ground cover or border.

2-pack starter plants

19.3 fl oz pot volume

Full Sun to Partial Shade

Lieutenant Broccoli

Well adapted to warm weather, these plants form smooth, dark green heads on medium-sized stems with few side shoots. Heads offer classic flavor and all the vitamins and protein broccoli is known for. Water plants consistently for best yields, especially as temperatures climb. If you like Packman, you’ll like Lieutenant Broccoli.

2-pack starter plants

19.3 fl oz pot volume

Full Sun

More related

How To Grow

How to Grow Mexican Gherkins

Mexican gherkins look like tiny watermelons but taste like lime-infused cucumbers. Get expert tips for growing Mexican gherkins in your home vegetable garden.

Read More

How To Grow

How to Grow Ground Cherries

A fruit of many names, it seems the only thing everyone can agree on is the fact this tangy but sweet berry is a delight to eat.

Read More

How To Grow

Growing Carrots

If you enjoy crisp, crunchy carrots, you’ll adore the fresh flavor of homegrown. Not only do they taste especially delicious when you grow carrots in your own garden, but they’re also extra sweet when kissed by frost.

Read More

How To Grow

Growing Beets

If you love sweet, earthy beets, it’s time to grow your own. A dual-purpose vegetable, beets taste delicious whether you’re eating the greens in a salad or roasting the roots for a main dish.

Read More

How To Grow

How to Grow Chamomile

If you enjoy ending your day with a soothing cup of chamomile tea to help you relax, you’ll love the convenience of homegrown chamomile. Easy to grow, harvest, and use, chamomile looks lovely planted among veggies in the garden, tucked into raised beds filled with herbs, or added to a pretty container on your patio or balcony.

Read More

How To Grow

Growing Onions

Learn expert tips for growing onions. They are a tasty, easy addition to your home vegetable garden. Growing onions is efficient and rewarding.

Read More

How To Grow

Growing Fennel

Fennel is a beautiful herb to have in the garden. Feathery and fern-like, it adds both color and texture to your plantings. It also boasts a strong, licorice-like flavor. Fennel is a tender perennial, which means the plant may make it through the winter in warm areas, but is sensitive to cold. Most gardeners grow fennel as an annual.

Read More

How To Grow

Growing Lemongrass

Discover how to grow lemongrass. Growing lemongrass in your own garden means having a fresh, delicious ingredient for a variety of Asian dishes.

Read More

This Is the Best Time to Plant Tomatoes

Photo: istockphoto.com

Q: The home I recently moved into has plenty of outdoor space for growing tomatoes—my favorite ingredient to cook with—but I have little gardening experience. To give myself the greatest chance for success, can you tell me when is the best time to plant tomatoes?

A: The answer for when to plant tomatoes depends on whether you start from seed or transplant seedlings. Getting an early start with seedlings ensures tomatoes have enough time to reach maturity. For transplants, the key is to plant early enough to give tomatoes time to mature but not so early that they succumb to freezing conditions. With a bit of careful planning and weather monitoring, you can grow thriving tomato plants that provide some delicious fruit.

RELATED: Solved! How to Overcome 11 Common Tomato Plant Problems

Consider the days to maturity needed for the tomato varieties you plan to plant.  

When it comes to starting from seed, tomato plants need enough time to reach maturity before cold fall and winter weather sets in. In warm climates, it’s possible to direct-sow tomatoes outside. But for those living in locations with short growing seasons, it’s necessary to start tomato seeds indoors. Most tomatoes take a long time to mature and bear fruit—typically around 100 days. Large tomatoes tend to take longer to produce a usable harvest, while cherry and mini tomato varieties mature faster.

The ideal strategy is to grow varieties of tomatoes that mature and produce fruit at different points in the season. Plant a mix of early, middle, and late-season types, including determinate and indeterminate tomatoes, for a consistent supply of the tasty fruits.

Tomatoes can also be planted late in the growing season. Still, it’s essential to note the variety’s days to maturity. If planting later in the season, pick a tomato variety that takes fewer days to reach maturity and produce a harvest—ultra-compact varieties like Micro Tom may be a good choice. Short-season tomatoes tend to be indeterminate varieties, which are plants that continue to set fruit throughout the season.

Advertisement

Other faster-growing tomato varieties to consider include:

Start tomato seeds indoors approximately 6 weeks before the last frost in your region.

Photo: istockphoto.com

Planting tomatoes indoors helps them get a jump-start on growing until they can be transplanted outside; these heat-loving plants need about 6 to 8 weeks indoors. It’s critical to get the timing right, so resist the urge to start too early. One may assume an earlier start means getting an earlier tomato harvest, but it can be difficult to deal with bulky plants when short on indoor space. And hardening off large transplants can be awkward. One exception is perhaps if you have a greenhouse space to hold your tomatoes early in the spring.

To figure out the exact seed-starting date, find out your region’s last and first frost dates. Then, count backward from your average last frost date.

RELATED: The Best Fertilizers for Tomatoes

Plant tomato seedlings outdoors when overnight temperatures remain above 50 degrees Fahrenheit.

Don’t rely solely on the average last frost date, however. Generally, tomatoes can go outside about a week or two after the last frost in an area, but this isn’t a strict rule. Weather conditions can vary from year to year.

Because tomatoes require warm weather to thrive and don’t do well in cool temperatures, it’s imperative to wait until nighttime temperatures are consistently above 50 degrees Fahrenheit. Keep in mind that a frost can occur even if it’s warm during the day.

Use the frost date as a guide and keep tabs on the weather forecast to inform your decision of when to transplant. Additionally, remember that tomatoes and other seedlings shouldn’t go straight into the ground. Transplants require a period of hardening off to become accustomed to outdoor conditions—think of it as an icebreaker for plants. They need some time to gradually warm up to outdoor life and wind.

Advertisement

Soil temperature is another good indicator of when it’s the right time to transplant tomatoes. Aim to plant tomatoes when the soil temperature is consistently between 65 and 70 degrees Fahrenheit.

Consider your garden location and when it receives 6 to 8 hours of full sun per day.

Photo: istockphoto.com

Don’t forget to consider location when planting tomato seedlings. Even if a garden is technically in USDA hardiness zone 6, there are microclimates within these zones that tend to be warmer or cooler than the rest. Make sure to plant tomatoes in a spot that receives at least 6 hours of full sun per day—8 hours is even better.

If tomatoes must be planted early, use protection like row covers or cloches to keep plants nice and toasty until warm weather sets in for the season. Just know that planting earlier doesn’t usually speed up time to harvest and comes with risks, such as exposing tomato seedlings to a killing frost.

Related: The Best Tomato Cages for Your Edible Garden

Advertisement

How to plant tomatoes in the ground: instructions and tips

Published:

How to plant tomatoes in the ground: Unsplash/Tom Jur

Tomatoes are grown in seedlings to speed up the vegetation process. How and when is it better to plant tomatoes in open ground? Study the instructions and valuable care tips, then each bush will take root and give a generous harvest.

How and when to plant tomatoes in the open ground

Tomatoes are a vegetable crop that is distinguished by selective diversity. In the spring, seedlings are grown from seeds and planted in open beds. To get the result, take into account the optimal timing of planting and the characteristics of growing tomatoes.

When to plant seedlings in the ground

Heat-loving tomatoes grown for seedlings are sent to an open bed only after the onset of real heat. Observing the weather conditions in your area, make a decision about planting plants in the ground. The following conditions will be optimal: