The Best Fall Flowers for Window Boxes

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Window boxes are a great way to bring more colour and life into your home during the fall season. When you’re looking for the best fall flowers for window boxes, there are many things that you will want to consider – including what type of box you have, how much sunlight it gets, and what colours best suit your home. These three factors can all affect the best flowers to choose from. Here are some ideas for the best fall flowers for window boxes that work well with different situations! 

Why Choose a Window Box?

Window boxes are great for both houses and apartments! Plants in window boxes are at eye level, providing a different viewpoint than if they’re in your yard.

From the interior, the plants will be a part of your view outside. From the exterior, the plants and containers combine to form part of the structure.

Selecting Plants for Your Sun Exposure

The most significant factors to think about are sun exposure and the way your window box faces. In a southern or west-facing wall, shade lovers leaves will be scorched; in a northern exposure, plants that thrive in full light will grow tall and leggy. 

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Best fall flowers for window boxes

Celosia

Celosia is a very popular for window box ideas. The leaves are eye-catching and the bright red, purple of gold flowers add wonderful colour to any outdoor space. It’s definitely a top fall flower that will last into autumn as it blooms late in the season!

These plants also tolerate colder weather, making them even more attractive and prefer sun or partial shade with at least 8 hours of sunlight a day.  Keep the soil moist but well-drained.

Flowering Kale

Flowering kale is another best fall flower for window boxes that works well with other plants in your garden. The leaves are striking purple, blue and green colours and the flowers grow on tall stems above. This best fall flower lasts through autumn as it blooms late into the season!

You can also plant ornamental kale in your best fall flowers for window boxes because it pairs well with other plants and you can eat them in salads when they are finished.

Chrysanthemum

Chrysanthemum is another best fall flower that will last into autumn as it blooms late in the season! The leaves are dark green and fade to a lighter colour as they mature, eventually turning cream or gold before falling off. Chrysanthemums also have gorgeous flowers that last a long time and the blooms will provide a pop of colour.  Shades are ranging from pink and red to purple, orange and even white.

They prefer moist soil and around 6 hours of sunlight a day.  They are also hardy for many parts of the northern hemisphere so they can stay outdoors during the winter.

Marigold

Marigolds are another best fall flower option because work well as container plants. You can also plant them directly into your garden if you have enough space! They come in all shades from yellow flowers to orange, deep maroon, or even bright pink depending on the variety.

These flowers do like sunshine so pick somewhere with good daily sunlight and use a window box with good drainage so their soil doesn’t get too moist.  You will find that they don’t last past the first hard frost but they make for a colourful addition until then.

Purple Fountain Grass

Purple fountain grass is an easy plant to grow. The leaves are burgundy or black and arch out of the planter like a fountain! This best fall flower looks best when paired with small white flowers such as dusty miller or thyme. 

They are drought tolerant and like the full sun conditions.  They also grow very quickly and need well-drained soil that dries out between waterings.

Coleus

Coleus is another best fall flower that works well in window boxes. These plants have a wide range of colours, from white to green to pink and red! They also work best when they’re paired with other flowers – marigolds look especially good if you want something different for your box. 

They do best in warmer conditions and if the temperature goes below 50 degrees, bring them indoors to survive.  They also make for great house plants so moving them indoors won’t hurt them.

Craspedia

Craspedia is also known as Billy Buttons because they grow on tall stems above the leaves like little yellow or orange globes! They work best when you plant them with other best fall flowers that have similar water needs – like marigolds and chrysanthemums. 

They need around 6 hours of full sunlight and only water them when the top inch of the soil is dry.

Goldenrod

Goldenrod is a great choice! This plant has tall stems that grow upright and have yellow blooms. They are also good for providing nectar for bees and other insects if you want to do a little eco-friendly gardening in your window box.

They like full sun and need minimal water, well-drained soil and are fairly drought tolerant.

Ornamental Pepper

Ornamental pepper is more of a vegetable than a flower but has plenty of colours. These plants have small green leaves and produce red, yellow, or orange peppers, even sometimes purple varieties, throughout the growing season!

As they mature into autumn, these best picks will become bright colours that last through late October.  They are edible plants but tend to be grown more for their appearance than anything.

Echeveria

Echeveria for window boxes is another great option! These plants have green leaves with bands of light and dark colours. They work best when paired with other best picks, such as flowering kale or coleus.

These plants have a shallow root system that makes them great for containers or window boxes.  They like full sun and don’t need a lot of water, drying out completely before being re-watered.  Add some gravel to the top of the box to help slow the flow of water.  If the temperature goes below 40 degrees, bring them indoors for a bit.

Choosing the best fall flowers

Many people enjoy adding the best fall flowers for the window box because they’re a way to bring the best fall colours into your home. From yellow marigolds to bright red celosia, there are many best fall flowers for window boxes that will add a little bit of colour!

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