If you're looking for the best flowers for window boxes, you're in the right place. Adding colorful blooms by the window will not only boost the home's curb appeal but also brighten an otherwise unused area of your home.
'Before planting in window boxes, it's crucial to consider factors like sunlight exposure, drainage, and the size of the containers,' says Reese L Robins, gardening expert at Just Pure Gardening. 'Choose plants that thrive in the available light conditions, provide adequate drainage to prevent waterlogged soil, and ensure the window boxes are securely fastened to your windowsill.'
To answer all your burning questions related to container gardening, we reached out to top experts. Here's everything you should know about flowers for window boxes.
1. Pansies
Pansies are not only one of the best flowers for the window box but are also ideal fall flowers to plant. These are great main-theme flowers and can upgrade the look of your exteriors.
'Pansies offer a wide range of vibrant colors and are well-suited to the confined space of window boxes,' says Reese L Robins. 'They provide a burst of seasonal color and are relatively easy to care for. Incorporating a mix of other flowers allows you to create visually appealing and ever-changing displays throughout the year.'
One thing to keep in mind before choosing flowers is 'to consider the aesthetic appeal and color coordination to enhance your home's curb appeal,' says Reese.
Sunlight: Full sun
Price: $7
2. Petunias
If you’re after all-year-round color, then consider planting annuals in your window box. ‘Annuals are probably best for color as they bloom all season long as compared to perennials that go in and out of flower throughout the season,' says Diane Blazek from the National Garden Bureau tells us.
Perhaps the most common flower trend spotted blooming in window boxes is the much-loved Petunia. The bright and beautiful florals are a sure-fire way to add some color to the outside of your home. But just be warned: the annual flower loves regular watering and sunlight.
Sunlight: Partial
Price: $99
3. Geraniums
Easy to grow, easy to love, and easy to look after, geraniums make for popular options in hanging baskets for more reasons than one.
The vitamin D-loving flower, which is more informally known as cranesbills, is believed to have more than 422 species and it comes in a variety of shades, including red and white, orange and yellow, pink, violet and lilac, so there's something to suit every modern front garden color scheme.
For other sun-loving plants, Diane recommends adding, ‘calibrachoa, geraniums, snapdragons, verbena, lantana and shorter varieties of zinnias and marigolds.’
Sunlight: Full sun
Price: $8
4. Rosemary
Don't have room for a herb garden? Create your herb garden from your window sill. Coming in handy for cooking, adding rosemary to your window box will give your sill a hit of greenery and leave a pleasant aroma for anyone walking by. Plus, it's also ideal for all those living the good life in a small backyard.
‘Some herbs like basil and rosemary are good fillers and oregano and thyme as spillers,' says Diane. Or learn how to grow cilantro for another window box addition.
Sunlight: Full sun
Price: $5
5. Fuchsias
Does your window box get more shade than the sun? Consider adding bright and beautiful shade-loving florals to your window with a perennial like the much-loved fuchsia.
The exotic-looking flower, which looks like little hanging lanterns, tends to trail (although they can grow upright with a little bit of TLC) making for the perfect addition to hanging baskets.
'Fuchsia aside, perennials that work well in window boxes include varieties like strawberry, sedum, marigold, creeping jenny, pansy, Ivy, and lavender,' says Reese. 'These plants are not only beautiful but also adapt well to the limited space of window boxes. They're known for their resilience and ability to return year after year, making them a cost-effective and low-maintenance choice for window box gardening. Their trailing or compact growth habits add a lovely dimension to your windowsill garden.'
Sunlight: Full sun
Price: $3
6. Ivy
It’s not just flowers and herbs that you can fill your window box with. To help decorate the space and add some greenery to your window sills that will improve your home's curb appeal, consider adding evergreen fillers to your box.
According to Diane, ‘Sweet potato vines, ivies, vinca minor, creeping Jenny, and other trailing foliage or blooming plants, would work well.
Sunlight: Full
Price: $7
How many flowers should you put in a window box?
‘There are two things one needs to know first to figure out how many flowers are needed,' Diane says. 'First, what size (height and width) are the flowers you wish to use? Secondly, how long and deep is your window box? '
For a window box, you can position each plant closer together than what the tag or label suggests. Just know that some plants are more aggressive growers so they may outgrow their neighbors.
'A little trial and error goes a long way in learning what works best together but to start, and in general terms, you can place one plant every 6” in a window box, going right to the ends to make the box look full and lush,’ says Diane.
How can you keep flowers alive in a window box?
Once you’ve gone through all that trouble of finding the right flowers for your window box, it’s now time to think about their aftercare.
To help keep your flowers alive, Diane recommends thinking about three things. This includes:
- Know the amount of sun your window box will get.
- Water the right amount depending on the amount of sun and the types of plants but make sure the window box has good drainage.
- Fertilize blooming plants for season-long flowers.
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