How Far Apart To Plant Purple Sprouting Broccoli

Purple sprouting broccoli should be planted about 45–60 cm (18–24 inches) apart, with roughly 60 cm between rows.
 
That spacing gives each plant room to grow into a sturdy, productive specimen without crowding its neighbours.
 
If you’ve been wondering how far apart to plant purple sprouting broccoli, the honest answer is that it depends a little on your soil, your variety, and how big you want your harvest to be.
 
But that 45–60 cm range is the sweet spot most gardeners come back to year after year.
 
In this post, we’ll look at why spacing matters so much, the exact distances to aim for, and how to adjust them for your own plot.
 
Let’s dig in.
 

How Far Apart to Plant Purple Sprouting Broccoli

How far apart to plant purple sprouting broccoli is really a question about giving plants enough room to feed themselves.
 
Purple sprouting broccoli is a hungry, long-season crop that can stand in the ground for up to a year, so it needs space to build a strong root system and a wide frame.
 
Here’s what that looks like in practice:
 

1. The Standard Spacing: 45–60 cm Apart

The generally accepted spacing for purple sprouting broccoli is 45–60 cm (18–24 inches) between plants.
 
This is the distance most seed packets and growing guides recommend, and it works well for the majority of varieties.
 
If you’re planting purple sprouting broccoli in a raised bed or a traditional plot, aim for the middle of that range and you won’t go far wrong.
 

2. Row Spacing: Around 60 cm Between Rows

When you’re working out how far apart to plant purple sprouting broccoli in rows, leave about 60 cm (24 inches) between each row.
 
This gives you room to hoe, water, and harvest without trampling the plants.
 
It also keeps airflow moving between rows, which helps keep disease at bay.
 

3. Why Spacing Matters So Much

Purple sprouting broccoli grows into a large plant, often reaching 60–90 cm tall and just as wide.
 
If you plant purple sprouting broccoli too closely, the plants compete for light, water, and nutrients, and the result is spindly stems and a disappointing harvest.
 
Good spacing also improves air circulation, which is one of the best defences against clubroot and downy mildew.
 

4. Adjusting Spacing for Your Soil

On rich, well-fed soil, you can plant purple sprouting broccoli at the closer end of the range, around 45 cm apart.
 
On poorer ground, give each plant more room, closer to 60 cm, so it can forage further for nutrients.
 
Either way, dig in plenty of compost before planting and firm the soil well around the roots.
 

Tips for Planting Purple Sprouting Broccoli at the Right Distance

Getting the spacing right is only half the job, so here are a few pointers to make planting day easier.
 

1. Plant Out When Seedlings Are Sturdy

Move your seedlings into their final positions when they’re about 10–15 cm tall and have four or five true leaves.
 
Plant them slightly deeper than they were in their pots to encourage a stable root system.
 

2. Use a Measuring Stick or String Line

When you’re planting purple sprouting broccoli in straight rows, a string line and a marked stick take the guesswork out of spacing.
 
Set the line, mark your distances, and plant at each mark.
 

3. Water In Well and Firm the Soil

After planting, water each plant in thoroughly and firm the soil around the stem.
 
Good contact between soil and roots helps plants settle quickly and start growing.
 

4. Protect Young Plants from Pigeons

Pigeons love young brassicas, so net your plants or use a crop cover until they’re established.
 
This is especially important in the first few weeks after planting purple sprouting broccoli out.
 

So, How Far Apart Should You Plant Purple Sprouting Broccoli?

Purple sprouting broccoli should be planted about 45–60 cm apart, with around 60 cm between rows.
 
That spacing gives each plant room to grow strong, stay healthy, and produce plenty of spears through winter and into spring.
 
Adjust slightly for your soil and variety, but stick close to that range and you’ll be rewarded with a bumper crop.
 
Happy planting.