How to Grow Radish – A Beginner’s Guide

radish plant growing in garden
Radish, which are known botanically as Raphanus Sativus, are a type of vegetable that can easily be grown at home. Continue reading to learn the basics of growing radish as well as common mistakes to avoid along the way.

Best Time to Plant Radish

This will depend largely on your local climate, but as a rule of thumb, begin to plant the radish seeds sow seeds 4 to 6 weeks before the last spring frost. This is the best time to ensure that the seedlings survive the weather.

To check when radish are most likely to thrive in your area, see the USDA Plant Hardiness Zone Map. If you live outside the US, do a quick search for ‘plant hardiness zone + [city]’.

How to Plant Radish the Right Way

There are a number of things to consider that will help you avoid some of the common mistakes of growing radish in your home garden.

Often overlooked, your soil can have a huge impact on how well your radish grow. Generally, your soil should be  lighter, sandy, well-drained soils.  Soil PH levels should be around 6 to 7.

2′ apart in rows. an inch apart in a row. The seeds should be sowed at a depth of about  .5″. For each plant, be sure to sow at least a few seeds to ensure that at least one of them will germinate.

Begin thinning your radish seedlings  thin seedlings to an inch apart.

How Much Sunlight is Needed to Grow Radish

The amount of sunlight is another key to a successful harvest. Too much sunlight will dry out your radish. Not enough sunlight will stunt your its growth or even kill it.

Ideally, your radish should be getting full sun, which means as much sunlight as you can possibly give it, or at least 6 hours or more.

How Much to Water Radish

As you’ve figured by now, a lot can have an impact on how well your radish do, and the amount of water is no different.

Ideally, the soil should be damp to touch; not soggy or bone dry. If the leaves on your radish begin to change colors or start to look droopy, you need to adjust how much water you’re giving it.

Unfortunately, if you give it too much or too little water, you can kill it, so it’s best to just keep an eye on it and water as needed.

How Long Does it Take Radish to Germinate and Grow?

Now the fun part begins and you get to watch your radish grow.

It takes approximately 4-7 days to germinate, and a total of 28 days from seed to harvest.

When to Harvest Radish

The best time to harvest your radish is once they’ve grown to about 1in/2.5cm in diameter.

Radish can grow up to about  0.75 and 1.25 inches in diameter.

What Can Radish Be Used For?

Food Use:  in relish trays, salads or as cut garnishes.

Flavor Profile:  Crisp, slightly bitter.

Can Radish Grow in Pots and Containers?

Yes, you will ideally need a 12″+ containerfor each plant. This can help control weeds and keep your plant from growing out of control.

It also gives you the flexibility to move your radish around if you need to adjust sunlight or bring it indoors to avoid harsh weather conditions.

Are Radish Safe for Bees?

Yes, radish are safe for bees.

According to, bees pollinate human food crops that make up about 90% of the world’s nutrition.

Given their importance in our ecosystem and food supply, I feel it is important to note that growing radish is bee-friendly.

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