How to Plant Flowers in a Window Box Planter
Garden

How to Plant Flowers in Window Boxes

(This post was written in collaboration with H Potter but all thoughts and opinions are my own.) Are you looking for planting ideas for a window box? Wait until you see how to plant flowers in these GORGEOUS window boxes.

When I first saw these stainless steel window boxes with an antique copper finish, it was love at first sight.

I mean…wow!

And I have to tell you, they are even more beautiful in person than they are online.

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About H Potter

H Potter sells absolutely gorgeous garden decor and accessories. I’ve received a few items from them, and these copper window boxes might be my favorite because they added lots of character to my garden shed.

H Potter is a family-owned business that has been accenting homes and gardens nationwide for over 20 years with distinctive items that can be used indoors and out.

Their product line includes terrariums, lanterns, trellises, window boxes, planters, and torches, handmade by artisans using high-quality materials from stainless steel to copper to hand-blown glass.

And let me tell you, from my experience, they are built to last and are just gorgeous!

How to Plant Flowers in Window Boxes

How to Plant Flowers in a Window Box

Today, we are planting these beautiful window boxes that are even more gorgeous in person.

These planters were easy to assemble and very well made.

I potted them up with some pretty spring flowers that would accentuate the beauty of the copper planters and add cottage charm to my garden shed.

How to Plant Flowers in a Window Box Planter
Before the window boxes were planted with flowers.

Supplies Needed to Plant in a Window Box

  • plants
  • container
  • potting soil
  • weed fabric
  • gloves
  • scissors
  • plant food
  • shovel or cup
How to Plant Flowers in a Window Box Planter

For this project, the plants I chose are:

  • Geraniums
  • Sweet Potato Vine
  • Bacopa
  • Euphorbia
  • Vinca
Nursery Trip
When I shop for annuals, I don’t mess around. I bring the big truck!

Determine Location

The first step is to determine where the window boxes will be maintained. Does the area receive full sun, part sun, or shade?

Understanding the location will help you choose the right plants.

How to Plant Flowers in a Window Box Planter

Choose Flowers for the Window Boxes

Once the location is determined, it’s time to shop for plants.

If choosing to create a container design with a few plants, it’s important to make sure that they each have the same or similar light conditions as well as water conditions.

So read the plant tags.

Understanding light and water conditions will help you take better care of your plants after the container garden is finished.

Nursery Trip

How to Design a Window Box Garden

While shopping around the nursery, I was looking for plants that would accentuate the planters and could handle lower light conditions.

One of the things I like to do is group my plants together in the nursery to see how they look together.

Are they aesthetically pleasing?

I look at foliage, blooms, plant size, and the overall plant habit.

Because when designing a container garden, it’s important to use the thriller, filler and spiller method of design.

How to Plant Flowers in a Window Box

How to Plant Flowers in a Window Box

  • Gather supplies.
  • If possible, remove the window box and work from a table. In many cases, this isn’t possible, and that’s OK. But it is much easier to pot them on a table if you can.
  • Cut weed fabric to size to fit inside the planter.
  • Add some potting soil with a hand trowel or cup so the plants have some soil to sit in.
How to Plant Flowers in a Window Box
  • Check the planting depth by adding your plants while still in their plastic nursery pots. You want the soil line to match up with about an inch down from the top of the container. If more soil is needed to get the right depth, add more.
  • Remove plants from plastic pots and fan out the roots before setting in the container. This encourages the roots to grow out into the potting soil.
How to Plant Flowers in a Window Box
  • Back fill with potting soil, tamping it down as you go to remove the air pockets.
  • Add a slow-release fertilizer to the container, water, and enjoy!

And that’s it!

Didn’t they turn out beautiful?

How to Plant Flowers in Window Boxes

Window Box Care Tip

It’s important to note that window boxes can dry out much easier than larger planters.

Unless you add an irrigation system like this one, you may need to water your window boxes 1-2x a day in the heat of summer.

How to Plant Flowers in a Window Box Planter

Keep an eye on your plants to make sure they do not wilt.

For more container garden care tips, CLICK HERE.

Shed Garden at Sunrise in May

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How to Plant Flowers in Window Boxes
How to Plant Flowers in Window Boxes

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8 Comments

  1. Those window boxes are gorgeous…a step up from the cocoa fiber hay racks. Honestly, you can’t beat geraniums in a sunny window box. As long as you deadhead and fertilize they will bloom til frost.

  2. I love the choices of plants you combined to make theses beautiful flower boxes. I was wondering if you have ever discussed how you water your extensive outside gardens? Do you use a sprinkler system? soaker hoses? hoses with a sprinkler wand? Thanks for the wealth of knowledge you share with us!

    1. Funny you ask – I’m sharing a post about how to care for gardens while away on vacation tomorrow that will touch on this very topic! Thank you xoxo

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