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Dress of the day: The £40 floral midi that's ideal for autumn

floral autumn dress
This Marks & Spencer midi dress is simple, stylish and perfect for colder weather. (Marks & Spencer / Yahoo Life UK)

Autumn has arrived and what better excuse to indulge in a spot of retail therapy to upgrade your wardrobe.

As temperatures plummet, it's time to rethink our closets, opting for tights, knee high boots and stylish coats to keep the fast approaching winter chill at bay.

One of the most versatile items for the colder months is a midi dress. Long enough to keep your legs warm, appropriate for going from the boardroom to brunch and perfect for styling with trainers, boots or heels, it's an item that offers great cost-per-wear.

We've discovered our favourite midi yet - a Floral Midi Tiered Dress from Marks & Spencer.

Costing £39.50, it has a vibrant green floral print, long sleeves, a ruffled neckline and a tiered hemline.

Why we rate it

The fun floral print is an easy way to add a dose of colour into your wardrobe, while the shades of black running throughout make it perfect for dressing up or down with black accessories - whether you prefer chunky biker-style boots and a leather jacket or a blazer and heels.

The discreet tie also means you can cinch your waist to highlight an hourglass figure or leave it loose for a less fitted feel.

The v-neckline is also the perfect opportunity to show off your accessories - we'll be pairing it with gold stacked necklaces.

This laidback style can be easily dressed up with a statement lip and heeled knee-high boots. (Marks & Spencer)
It has a tie waist to add structure and shape to your figure. (Marks & Spencer)
This is a no brainer buy for your winter wardrobe. (Marks & Spencer)

£39.50 at Marks & Spencer

Another selling point? It's less than £40.

If you struggle to find midi dresses that don't graze the floor or barely skim your knees, you'll be pleased to know it's also available in Mark & Spencer' petite and long ranges in sizes 6-20.

The regular fit option goes a bit further and can be found in a 6-24.

Made from a 100% viscose, it's stretchy but not form-fitting - ideal if you're prone to bloating, are pregnant or simply like a baggier fit.

Keep it in mint condition by washing it at 40°C on a delicate setting.

If you love the print as much as we do, it also comes in shirt version too for £29.50. Giving an effortless 70s feel, we love how Mark & Spencer have styled it with flared blue jeans.

Shop it now: Floral Tie Neck Belted Midi Tiered Dress | £39.50

(Marks & Spencer)
(Marks & Spencer)

£39.50 at M&S

Shop it now: Modal Blend Floral Long Sleeve Blouse | £29.50

(Marks & Spencer)

£29.50 at M&S

However, if you love the style of the dress but not the green florals, it's also available in a polka-dot print for slight more, costing £45.

Designed with all the same features; a ruffled neckline, tie waists, tiered hemline and long sleeves, it's a more monochromatic look.

It's proving popular though, with only a few sizes left in its petite, regular and long ranges, so you'll need to be quick to snap it up.

Shop it now: Polka Dot Tie Neck Midi Waisted Dress | £45 from M&S

The polka dot design is a classic style you can wear year after year. (Marks & Spencer)

£45 at M&S