First time allotment holder

There are many articles about growing fruit and veg in the main part of this forum and you need to do some serious homework and planning - how much of (and which) seeds you require obviously depends on what you actually want to grow and eat, and the spacing each crop requires.

Welcome to the forums and enjoy your plot! 

As has been said, grow what you and your family eat.  Spinach, herbs, courgettes, beans, salads and soft fruit are all good bets as they are all so over priced in the supermarkets, yet easy to grow.  Otherwise, I would say concentrate on crops that actually taste better homegrown - tomatoes, peas, potatoes, carrots.

Then anything else you have room for.

I would recommend planting a few flowers to encourage pollinators - poach egg plants, daisies, cosmos (if you have room), nasturtiums, calendula, marigolds, sweet peas, etc.

Don't try to do too much - it took my husband and I two years to get control of our 5 rod plot.  Having just taken another one on last year, we are still only half way through sorting it.  

Decide on what you have time to do - if you don't have time to look after paths, then cover then and mulch to avoid having to do that work and concentrate on what you have time to do.

Cover over any areas with weighted cardboard or weed suppressing fabric to weaken weeds before tackling those areas.

Most important of all, enjoy it.  It's pointless taking on an allotment unless you love being there!

Hello - and well done - exciting, isn't it?!

In addition to the advice above, I'd get either some graph paper or onto Excel and try and work out the spacings for things you think you want to grow. There are sites that help you do that, if you don't mind paying after the free bit expires.

It takes a bit of time, but at this time of year you have lots before the season starts.

And don't worry about growing everything in the first year.

my first mistake was growing (or trying to grow) exotic veg which didn't yield much and what did grow my family turned their nose up to.  grow what you like to eat simples

I had an empty uncultivated patch for 2 seasons before I had the cash to develop the top half into 7 square beds.

An allotment takes time. Mine's still not quite the perfection I'd like and I'm in my 9th year on the site!
My shed is falling to bits and I'd like a new one.
My polytunnel stayed up for 3 weeks before I found it in the plot next door (luckily it's rather wild - she looks after hedgehogs and things ) so that was that!

Don't worry about time or errors - we learn by them. Allotment gardening is leisure gardening (as my previous Committee seemed to forget at times )

Enjoy yourself Stortgrower

allotments are friendly places in the norm. so take a walk around see what others are doing and be outgoing and introduce your self to everyone you see on the other plots and hunt out those old timers they have a lot of knowledge locked up in those heads and there sheds normally have a kettle on the go.
 And  take note what every one is telling you  ONLY DO A LITTLE BIT AT A TIME 
its the biggest mistake a new gardener can make trying to keep up with your neighbours who have been there a long time and do not get to upset when somethings fail even the oldest wisest gardeners have failures even lord Tichmarsh  and count Montydon