Mother's Day is this Sunday 6 March 2016 in the UK, and your life will be on the line if you forget it. Here's how to buy your mum some flowers online, and save yourself some money at the same time - now you've no excuse. Also see: How to make personalised cards online.

• Open your web browser and search for 'flowers'. There are loads of choices, from Interflora and Serenata Flowers to eFlorist, Bunches, M&S, Next Flowers and even Moonpig.com. The latter might be a good choice if you want to send a personalised card at the same time, but you can choose whichever site you fancy.

• We've gone with Serenata Flowers because we've used it before, and because it has some good deals ahead of Mother's Day - especially with the 15% voucher code we found online. (Don't worry, your mum doesn't know that.)

Serenata Flowers

• Choose a website and look at the bouquets on offer. If you don't know anything about choosing flowers, play it safe and go for one of the bestsellers. For example, Serenata Flowers is offering Aztec Sun as a bestseller at £19.99 with £10 off.

• Once you've chosen a bunch of flowers, just click on it to go to the product page. Now select what size bunch you want: Standard, Deluxe or Supersize. You'll have to pay a little more to get a bigger bunch - the Aztec Sun costs £24.98 for Deluxe or £29.98 for Supersize.

Aztec Sun

• If you want to send a teddy, balloon, box of chocolates, vase or other with your flowers, select an item below your choice of bouquet size.

Extras

• Now choose a date for your delivery. Right now Serenata Flowers is offering free delivery by DPD on Sunday 6 March, meaning your flowers will arrive between 8am and 6pm, and you'll be informed of a one-hour delivery slot nearer the time.

• When you're happy with your choices choose Order Now.

• If you didn't choose an extra gift along with the flowers, you'll be prompted to do so now. You can select one of the options if you want to, or to skip just scroll down and choose 'Continue to checkout'.

• On the next screen enter your name, email address and phone number, plus an invoice address. Note that this is your billing address, and not your mum's address. Click 'Continue to Recipient Details' when you've done so.

Details

• Now enter your mother's name, her address details (or tick the box that says 'Same delivery address as my invoice address' if you live with her), the delivery instructions, occasion and select which card you would like to send with the flowers - there is a free option, but it you want a specific Mother's Day card it'll add £2.99 to the price.

Recipient

• Lastly, remember to add a gift message in the bottom field so she knows who they are from - you have up to 350 characters in which to do so.

Card, gift message

• When you're done, click 'Continue to Payment Details'.

• Before you buy anything online it's a good idea to search for voucher codes online. We found a 15% off voucher for Serenata Flowers using the code Mday2016FL, which is valid until Sunday. To enter your voucher code click the voucher code link under your order details on the right side of the screen.

• Serenata Flowers accepts payment by Visa Electron, Switch, Solo, Mastercard and Maestro. Enter your card number, expiry date and security code, then click Pay. You should get an email receipt within a few minutes. And that's it - easy!

Read next: This Mother's Day give your mum tech support instead of flowers and chocolate

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