What's the Proper Spacing When Planting Flowers? (2024)

Posted On by Douglass Delano

It’s human nature to want everything fast — including big,bountiful displays of flowers. So it’s tempting to plant those pretty little begonias really close together.

But what's the proper spacing for flowers? It varies, based on the type of flower, potential impact and your patience.

Let’s take a look plant spacing.

Plant Spacing Can Depend on Preference

“We do what the client wants,” says James Kole, an account manager at Level Green Landscaping.

Managers of some high-end properties want instant impact from their flower beds, Kole says. Downtown Washington DC hotels, for instance, attract global visitors and experience high foot traffic. Property managers want impressive flower beds right away, as their revenue depends on how things look.What's the Proper Spacing When Planting Flowers? (1)

“They want the plants touching at installation,” Kole says, “and they want bigger, 6 to 10 inch plants, rather than four-inch plants.”

No problem, he says, but that flower spacing plan comes with extra maintenance.

“As the plants grow, we have togo in and selectively remove some to make room, so air can circulate,” he says.

Patience Affects Flower Spacing Options

If you want a little less maintenance, space annual flowers on a more typical 8-12” on center planting pattern Kole says. That allows room for plants to spread, and they’ll look better and better as summer goes on.

What's the Proper Spacing When Planting Flowers? (2)

HOAs are typically willing to wait, he says. The closer you space flowers, the more plants you need, he says, and they typically don’t have budgets for that many plants.

Willing To Wait A Bit Longer?

If you’re willing to wait bit longer for your flowers to fill in, space them further apart and use 4-inch plants, Kole says. Bonus: it will save you money, because you'll need fewer plants.

The Dangers Of Planting Too Close Together

If you plant flowers too close together, the plants get stressed and are prone to diseases, Kole says. If air can’t properly circulate and the plants can’t dry out between waterings, fungus sets in. Roots can rot. And once plants are weakened from stress, insects move in.

That's why if you choose to space flowers very close together, Level Green crews prune out some plants as they grow, to create that healthy space between flowers.

How Far Apart Should Perennials Be Placed?

“Perennials are not in the same ballpark,” Kole says. “They’re a whole different sport.”

What's the Proper Spacing When Planting Flowers? (3)

Hosta, for instance, can grow to be three feet wide, while coral bells might mature at one foot wide.

Each perennial has its own spacing needs.

When you space plants, you measure from center to center of the pots.

Proper plant spacing depends on the type of plant, Kole would space some hostas 18-24 inches apart to allow for growth, for example, and catmint two feet apart.

Fall Flower Spacing is Different

Summer annuals can be planted farther apart because they have all summer to grow and fill in.

But planting fall pansiesis different. Plant them in October and they only have one month to grow. So space four one half inch pots no more than nine inches apart, Kole says.

Offer Close Plants An Extra Boost

When flowers are planted close together they need more fertilizer, because there are so many hungry roots in a small area. The soil can’t properly nurture them all.

Level Green crews fertilize those once a month.

What's the Proper Spacing When Planting Flowers? (4)

Trust Your Flower Spacing To Level Green

What’s the proper spacing for planting flowers on your property?

“Talk to your account manager,” Kole says. “Each flower is unique. We can match your budget and your expectations.”

At Level Green, we’re flower experts. We love designing and maintaining bedsand pots of beautiful, attention-grabbing flowers that make properties pop.

If you’re not already a Level Green Landscaping client, we’d love to add you to our growing list of happy customers. Our focus is on commercial properties like offices, mixed-use sites, HOAs, municipalities and institutions in Maryland, Washington DC and parts of Virginia.

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What's the Proper Spacing When Planting Flowers? (2024)

FAQs

What's the Proper Spacing When Planting Flowers? ›

Here are general guidelines for spacing perennials: Small perennials – 6 to 12 inches (15 to 30 cm.) Medium perennials – 12 to 18 inches (30 to 46 cm.) Large perennials – 18 to 36 inches (46 to 91 cm.)

How far apart should I plant my flowers? ›

If you want a little less maintenance, space annual flowers on a more typical 8-12” on center planting pattern Kole says. That allows room for plants to spread, and they'll look better and better as summer goes on.

Can flowers be planted too close together? ›

You're on your way to an even more beautiful garden. But before you get digging, there are a few things to keep in mind as you choose where to place your new plants. Putting plants too close together in a garden can stress them out, which limits their growth, beauty, and overall health.

How far to plant plants apart? ›

The easy way to determine spacing between different plants is to use the average of their mature sizes. As an example, when planting a 5-foot-wide hydrangea planted next to a boxwood that grows up to 3 feet wide, space the plants 4 feet apart. Remember to measure from the center of one plant to the next.

How do you calculate flower spacing? ›

For a square bed, multiply the length of the bed by its width to determine how many plants per square foot. For a circular planting bed, you can calculate how many plants per square foot is ideal by multiplying 3.14 by the distance from the center to the edge of the bed.

How close to plant plants together? ›

In general, plants with known positive relationships should be planted within two or three rows of each other. Plants that have negative or detrimental relationships, should be planted at least two to three rows apart. Infestation of pests or disease can occur more quickly if you plant all the same crop close together.

What is the spacing for annuals? ›

1. Planting and spacing: Plant transplants closely so they fill in quickly. Usually, the tag will say to plant 8 to 12 inches apart, so pick 8 inches for a great show of flowers more quickly.

What is the spacing for perennials? ›

Plants whose mature height is 3' or above should be planted 2' to 3' feet apart, and plants 2' to 3' tall should be spaced 1.5' to 2' apart. Below 2' tall, spacing should be 1'. Most perennials benefit from lifting and dividing every three to four years.

How do you plant flowers next to each other? ›

Make sure to pair flowers that require the same amount of moisture and sunlight. Don't accidentally pair a short, sun-loving plant with a taller one that will cast a shadow over it. When pairing flowers that will bloom at the same time, consider their colors and shapes.

What is the ideal distance between two plants? ›

A good visual rule of thumb for plant spacing is to plant so the tips of the leaves from one mature plant are 2-4 cm from the tips of the leaves of another plant. This usually can be estimated as: Around 5-10cm between seedlings for small leafy vegetables like Lettuce and Cai Xin.

What is the best row spacing for a garden? ›

For most tillers, rows should be at least 36 inches wide. This way you can go back between the rows and lightly cultivate for weed control until the crop starts to fill in between the rows. For most crops such as beans, corn, tomatoes, eggplant, peppers, okra, peas and squash, 36-inch row spacing would be the minimum.

Why do plants need to be spaced apart? ›

The correct plant spacing prevents overcrowding. This can lead to competition for resources such as water, nutrients, and sunlight. Spacing plants allows them to spread their roots and access the necessary nutrients in the soil.

How close do you plant flowers? ›

Here are general guidelines for spacing perennials: Small perennials – 6 to 12 inches (15 to 30 cm.) Medium perennials – 12 to 18 inches (30 to 46 cm.) Large perennials – 18 to 36 inches (46 to 91 cm.)

Do you water flowers after planting? ›

When planting: Water plants as soon as you get them in the ground. Allow the water to soak in, then water again until the soil is thoroughly moistened. Week one: Water plants daily or every other day. Recently planted roots will absorb moisture from a small area until they begin to grow.

How to plant a bed of flowers? ›

The soil should be loosened to a depth of at least 12-inches for annuals and 18-inches for perennials. Smooth the soil with a ground rake. Plant the flowers at the same soil level as they were in the container. Each year add more organic matter to the soil, or top a bed each year with a 2-inch layer of compost.

Can you plant flowers next to each other? ›

As long as you keep growing conditions, heights, bloom times, and colors under consideration, just about any flowering plant can make an excellent neighbor to another one. As the saying goes, “A flower does not think of competing to the other flower next to it.

How do you arrange flowers when planting? ›

Place the shorter plants in the front, medium-sized plants in the middle, and the taller ones in the back. Layering plants this way means that every plant will be visible. Of course, these rules aren't set in stone; you can arrange your garden how you wish!

How do you plant multiple flowers? ›

Maintenance is easier than if the same area is filled with individual specimens that require different care and have different bloom times. When planting in multiples, plant odd numbers (3, 5, 7) of the same plant varieties together or amass larger numbers in drifts or waves.

References

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