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How to Grow Carrots From Seed

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Learn everything you need to know about growing organic carrots from seed to harvest

Learn everything you need to know about growing organic carrots from seed to harvest

Growing Organic Carrots

No garden is too small for the addition of carrots! These popular root crops are perfect to grow in the home garden, even if your garden is a small apartment patio. In the ground or in containers, carrots will grow and thrive with ease. Even better for gardeners is the fact that you'll have countless harvests, as carrots are extremely fast growers! In this carrot growing guide, you'll learn how to grow carrots from seed and the processes involved with preparing, watering, and harvesting! If you're in the business of seeking out how to grow carrots, look no further, because you've just found the answer!

Different Growth Stages of Carrots. © Joe Macho

Different Growth Stages of Carrots. © Joe Macho

Basic Measures

Carrots will thrive in a variety of conditions, but there are a few requirements that you will want to meet before planting any seeds.

  • Soil - Carrots prefer a light well draining soil that's free of rocks, pebbles and large clumps. If you happen to have a dense garden soil with high clay content, carrots can still be grown, but a short and squat variety of carrot is recommended. Mixing a couple of handfuls of sand into ever square foot of garden soil will greatly improve carrots' ability to produce bigger roots.
  • Nutrition - It's important to note that a nitrogen-rich diet will result in deformed and ruptured carrots. To prevent this from happening, amend the initial garden soil with a good amount of compost. This will serve as a steady food for the carrots throughout their life cycle. For container grown carrots, a high quality potting soil should carry them through their life, though a single application of fertilizer will greatly boost productivity.
  • Sunlight - Healthy carrots rely on full sun to survive. Make sure that you have a spot that will receive at least 8 hours of direct sunlight.
  • Containers - Higher moisture levels in containers can lead to carrot rot. Avoid plastic containers for growing carrots. Unfinished Terra Cotta and clay pots are the best option because they allow the soil to breathe and dry quicker. Also be sure that your container is a few inches deeper than the expected length of your variety of carrot.

Planting Carrot Seeds & Seedling Care

  • When - For an early spring harvest of carrots, plant carrot seeds two to three weeks before your expected last frost. If you go by soil temperatures, allow the soil to reach 50F (10C) for optimal carrot seed germination.
  • How - There are a wide variety of ways in which you can plant carrots, but for the highest productivity and density, sow carrot seeds one inch apart in all directions. Carrot seeds should be planted at a shallow depth of 1/4 inch or sown directly onto the soil and watered in. In either case, keep the soil evenly moist and the seeds should germinate in 5-14 days.
  • Thinning - When the majority of your seedlings have sprouted, thin them so that they are spaced at two inches apart. Sowing extra seed ensures that enough carrots germinate, and thinning provides proper spacing for healthy growth.
  • Mulching - Once the carrot seedlings have reached a height of three inches, a grass clipping or leave mulch is a recommended addition to in ground garden beds. This extra organic material added to the top of the soil will help the soil retain moisture and keep cooler during hot weather.

Top 3 Problems of Growing Carrots and How to Solve Them

Watering & Fertilizing

Carrots are one of the less demanding garden vegetables. Throughout their entire growth, carrots will prefer a moist soil that is allowed to dry slightly. Over watered soil can hold in too much moisture and eventually lead to carrot rot. Depending on your climate, humidity and container size, you should water your carrots 1-3 times weekly. To be sure you should water, stick your index finger in the soil. If you reach the middle knuckle and can't feel moisture, then it's time to water!

Growing Carrots. © Joe Macho

Growing Carrots. © Joe Macho

  • Fertilizing - If you mixed compost into your garden beds, you won't have to worry about fertilizing. For carrots growing in containers, a mild all-purpose organic fertilizer or compost tea may be applied once, when the carrots are around 20 days old.
  • Wood Ash - If you have it, wood ash can be a great addition to in ground and container carrots alike! The available potassium in wood ash stimulates root growth and vigor, basically meaning you'll have bigger and stronger carrots. Twice during their life cycle, I'll feed with a wood ash solution. Mix one tablespoon wood ash with one gallon of water. Feed once early in growth, and another around two weeks before harvesting.
Carrots Harvested from the Garden. © Joe Macho

Carrots Harvested from the Garden. © Joe Macho


The right time to harvest carrots is really up to you! Since they can be eaten at all stages of growth, you can choose to eat them as baby carrots or as fully grown roots. To get a sense of how big your carrots are, uncover the dirt around the base of each carrot base and view the top of the root. If they're ready, grab the top of the carrot root and give it a quick tug. Just for information's sake, most carrots are fully matured in 50-75 days.

When to Harvest

This content is accurate and true to the best of the author’s knowledge and is not meant to substitute for formal and individualized advice from a qualified professional.

Comments on April 22, 2020:

Wood ash for carrots: use only untreated "natural" firewood from your fireplace or woodstove but preferably not pellets from a pellet stove as pellets may be treated with chemicals.

sophal sok on October 31, 2017:

I am really interested for this process. However, in Cambodia context, the fertilizer is not surely specific to feed carrots . Here, the homemade compost is made by cow manure and other dry leaves, etc.. Is it possible to grow carrots both in ground or in containers? Is it enough for its nutrition?... Thanks

william Boateng on July 05, 2016:

I have really enjoy your process of planting of carrots ...And I am going to put it into action ...I hope by this process I will be able to harvest more carrots ...Thanks

nora feldish on May 18, 2016:

is wood ash, ashes from a pellet store? or do you buy it at lowes or home depot?

Charlotte Campbell from Melbourne on August 11, 2014:

Thanks for sharing this post. I thing that with these tips I may redesign my garden into carrot's field. I love carrots so much, and it would be perfect if I could just bring fresh carrots from personal garden :)

Zach (author) from Colorado on May 27, 2013:

K.J. -

Don't worry, there's no such thing as stupid questions! When talking about thinning, it's the removal of some of the carrots that have begun to sprout. Since some carrot seeds won't sprout, multiple seeds are planted to ensure the germination of at least one carrot plant. If a couple seeds do sprout in the same area, they will need to be thinned to one carrot seedling. Thanks for reading and good luck to you!

K.J. on May 26, 2013:

This may seem like a pretty stupid question but I'm a bit confused. When you say "thinning out" the carrots, do you mean thinning out the greens they produce by cutting them down or are you speaking of removing some carrots that have already began to sprout? Thanks!

Zach (author) from Colorado on February 13, 2012:

Joelipoo - It's great to hear that you grow your own vegetables! Be sure to check back, I'll have plenty more gardening articles to come. I appreciate your feedback.

phoenix2327 - First hand from my trials with carrots in containers, I can for sure say that depth is most important. Go for the deepest container you can find and you'll have a haul of carrots!

vocalcoach - Excellent! I'm sorry to hear that your first try at carrots was rather disappointing. Definitely try the wood ash for a fertilizer. It should really help your carrots plump up! Thanks for your feedback and good luck.

Audrey Hunt from Pahrump NV on February 11, 2012:

I can't thank you enough for your hub on growing carrots. I tried last year, but they were so tiny - not big enough to eat. But this yr. I will follow your tips to the letter. Bookmarking this fantastic hub! Voted up, useful and awesome!

Zulma Burgos-Dudgeon from United Kingdom on February 10, 2012:

Thank you so much for this hub. I've always wanted to try my hand at growing carrots. I didn't think they would do well in a container because of the root system, but I'm going to give it a go this year.

Voted up, useful and interesting. Shared on Twitter & FB.

Joel from Ohio on February 09, 2012:

I'm into gardening and growing my own vegetables, so this hub piqued my interest. I always enjoy reading about gardening. Voted up and interesting.