Summary: The first signs of spring herald the start of the new gardening year and the start of a new series of Gardeners' World. In the seasons to come, Monty Don will be in his garden, Longmeadow, and along with Carol Klein, Joe Swift and Rachel de Thame, will have a host of practical tips and inspirational ideas to help viewers improve their gardens. Monty Don reveals the changes he has made to his garden over the winter, tackles timely pruning tasks and shows us the best way to lay a new path. Snowdrops are lighting up the winter garden and Carol is out and about in Oxfordshire celebrating their staggering diversity and the length to which some gardeners will go in order to get their hands on the latest varieties. Rachel visits Cambridge Botanic Garden, which has one of the country's most celebrated winter gardens, to find inspiring plants and planting combinations that not only look fabulous now but that can also provide year round interest. Over the next few weeks Joe will be helping viewers achieve the garden of their dreams by offering up simple planting design plans for four very different styles of garden. He starts off with the romance of a cottage garden.

Summary: Monty Don revels in his passion for roses as he sets about planting some bare root varieties in the Jewel Garden at Longmeadow in readiness for a colourful spring and summer. Continuing the rose theme, there is an inspirational visit to the magnificent formal rose garden of Hever Castle in Kent, home to a breathtaking collection of hybrid teas. Carol Klein is in her Devon garden at Glebe Cottage, where she is delighting in the seasonal scent of her mahonias, while describing their exotic and dramatic history. And Joe Swift continues his planting design series by sharing ideas and top tips on the different types of plants to choose when creating a contemporary garden.

Summary: This week on Gardeners' World, Monty Don shows us how to prepare for spring and summer with timely tasks in his damp garden and soft fruit area. Joe Swift continues his series of master classes on planting design to help us achieve the garden of our dreams. This week he is sharing tips on how to create a tropical green oasis. Carol Klein is in her Devon garden planting a viburnum that will give spring colour and fill the garden with fragrance. By considering its natural, native habitat, Carol shows how to plant it in the perfect place. We visit a couple that moved to a cottage in Cornwall and used their mastery of flower and foliage colour to turn a thin stretch of land into a beautiful garden. Back at Longmeadow Monty has advice on the best type of mulch to use for different planting conditions and he gets to grips with pruning his gooseberry and currant bushes.

Summary: We have a long Easter weekend ahead to get to grips with timely gardening tasks and Monty Don has plenty of ideas of what to do now. Amongst other jobs he'll be cutting back his grass borders while Joe Swift reveals his top tips for creating a naturalistic garden. Carol Klein makes her way down to Cornwall in search of a garden full of beautiful spring colour. And if you're heading off to the garden centre this weekend, there's all you need to know about bedding plants from the 'living catalogue' of new and existing varieties at Ball Colegrave in Banbury, Oxfordshire.

Summary: Monty Don shows us how to plant pots of bulbs for fabulous summer colour. Rachel de Thame shares her passion for rare plants looking at a relative new comer to spring gardens, the hepatica. These delightful little flowers come in a huge range of colours and sizes and Rachel meets a collector who has travelled far and wide in search of new varieties. Back at Longmeadow, Monty is in his vegetable patch hoping that his soil is warm enough to plant the first potatoes of the year

Summary: This week on Gardeners' World, Monty Don is at RHS Garden Wisley in Surrey. He'll be getting the latest advice about how best to look after orchids, along with some top tips on how to create a mini-meadow from scratch. He's also keen to find out more about alpines with a view to growing some back home at Longmeadow. Carol Klein helps a Britain in Bloom volunteer who's determined to bring colour to the former mining town of Easington Colliery. First time gardener Michael Welsh has begged and borrowed plants from all over to start a community garden. Carol uses her expertise to help him get even more plants for free. Joe Swift gets an early taste of summer colour at the National Botanic Garden of Wales where they're hard at work conserving some of the rarest plants in the world

Summary: This week on Gardeners World, Monty Don is searching for signs of our long-delayed spring in his garden at Longmeadow. Taking inspiration from his trip to RHS Garden Wisley last week, he will be planting up an alpine trough. Carol Klein is out and about looking at native celandines, Wordsworth's favourite flower; they grace our hedgerows and woods at this time of year. The wild strains are too invasive for most domestic gardens but Carol finds a number of cultivated varieties that should suit most of us. And, if its colour you are after, then enjoy a sneak preview of summer when we visit agapanthus enthusiast, Michael Dedman, in his Essex garden to see his prized collection of these beautiful African lilies at their very best. Back at Longmeadow, Monty's hoping the soil will have warmed up enough to finally allow him to plant his potatoes.

Summary: Monty Don makes a start on turning his vegetable patch into a cottage garden. He also tackles the blanketweed that has taken over his pond, and plants a grapevine to train through a hole in the wall of his new greenhouse. Meanwhile, Carol Klein is at Glebe Cottage in Devon where she reveals a little of the fascinating history of one of our woodland gems, the trillium. And Joe Swift travels to Swansea to explore a wonderful suburban garden with a charm all of its own.

Summary: This episode comes from the Malvern Spring Gardening Show at the Three Counties Showground. Monty Don, Joe Swift and Carol Klein go behind the scenes to meet the show garden designers and the nursery men and women who make this event so special. Monty takes a sneak peak at the floral marquee before the show opens and then he searches for the perfect plants to add to his cottage garden, as well as checking out some of the ideas for sustainable gardening at the show. Carol hunts for rare and unusual plants being showcased at Malvern and discovers what it takes for smaller growers to get their plants to the show in peak condition. Meanwhile Joe will be in the show gardens on the lookout for design tips that could help us all transform our gardens.

Summary: Gardening magazine. Monty Don tackles seasonal jobs at Longmeadow and plants clematis in his cottage garden. Rachel de Thame takes a walk down memory lane when she visits the world's biggest flower garden in Holland and Carol Klein is on the trail of early plant hunters, responsible for the glorious selection of magnolias brought to these shores.

Summary: Monty Don plants up summer bedding in the Jewel Garden and starts a new tomato experiment. Carol Klein visits Batsford Arboretum in the Cotswolds.

Summary: Gardening magazine. Monty Don has some top tips for creating new herbaceous perennials for free as he busily fills the gaps in his cottage garden. He also shows what can be done with tulips now that the best of their flowering has been seen for the year. Carol Klein continues her plant hunter series with a visit to a unique display of wild rhododendrons at Minterne House in Dorset originally collected from the Himalayas and beyond.

Summary: As summer unfolds at Longmeadow, Monty Don undertakes timely tasks in his vegetable garden and flower beds. Meanwhile, Carol Klein enjoys the beauty of one of our unsung native flowers, the geum, and visits a cottage garden which holds the national collection of cultivated forms. Plus, Formula 1 supremo Sir Frank Williams explains why he is opening his garden at Inholmes as part of the National Garden Scheme Festival Weekend.

Summary: With the season well underway, there's plenty of work to be getting on with in the garden at Longmeadow and there's plenty to enjoy too. Monty Don will be undertaking some timely tasks to make sure the garden remains beautiful and productive all summer long. Joe Swift visits a garden transported, lock, stock and barrel to Britain from Japan around a hundred years ago and Carol Klein tells us the fascinating story behind one of our most graceful cottage garden plants - astrantia.

Summary: Monty Don makes a start on his new wild flower garden at Longmeadow and at last gets to taste the first new potatoes of the year. He also demonstrates how a radical chop of some border plants now can rejuvenate them for later in the season. Carol Klein celebrates a cottage garden favourite, the foxglove, and Joe Swift drops in on world renowned garden designer, Dan Pearson, to find out what he's got in store for his new garden.

Summary: With high summer in full swing at Longmeadow, Monty Don is busy ensuring that his plants are making the most of the warmth and light. He puts to use the homemade fertilizer he made a few weeks ago and catches up with his tomato-growing trial to see how the different techniques are performing. Carol Klein gets to grips with flowering dogwoods, perhaps the most aristocratic and elegant of all garden trees, and there's a visit to a magical topiary garden in Kent.

Summary: Longmeadow is in full bloom, but Monty Don is keen to remind viewers that there is still time to sow some late vegetables, demonstrating how easy it is to grow salad in a pot. It's time to give wisterias their summer prune. An expert, whose 252ft vine was in full flower just weeks ago, shows how she cuts back that summer growth. Meanwhile, Carol Klein has been out and about in Norfolk to revel in the delights of the bearded iris.

Summary: In a Summer of Wildlife special episode, Monty Don explores the secret life of his garden from the soil organisms underfoot to the birds that soar overhead. Naturalist Simon King shows us the wildlife that depends on our gardens, we visit a small space designed as a haven for garden creatures and Carol Klein celebrates a plant family popular with bees and butterflies.

Summary: Monty Don shares some of Longmeadow's late-summer highlights and looks ahead to the future, propagating a range of favourite plants to guarantee a great display next summer. Carol Klein celebrates a vibrant summer flower, the daylily, and we meet an artist who has created a very special roof garden where creativity and colour collide.

Summary: Monty Don serves up an extra big helping of timely jobs to keep gardeners busy over the Bank Holiday weekend. He also makes a start on cutting his hedges, with plenty of advice on how to go about it and the right tools to use for the job.Carol Klein steps back in time when she visits an 18th century walled garden in the Scottish Borders. It belongs to Michael Wickenden who has turned it into a very special home for his enormous collection of rare and unusual plants gathered from across the globe. There is also a visit to a couple of allotmenteers in London who have turned their plot into a paradise. Fruit and veg aside, it's become the home to their absolute obsession for roses. Back at Longmeadow, thrift is the order of the day when Monty shows how to take cuttings from his newly acquired penstemons.

Summary: As August draws to a close, Monty Don turns his attention to autumn and tackles that perennial problem of what to grow in the shade of a tree or shrub. He also takes cuttings of his favourite pelargoniums - an essential task at this time of year. Carol Klein takes a closer look at that late summer jewel, the crocosmia, and we meet a gardener in Derbyshire who has spent a lifetime growing and showing gladioli.

Summary: As part of BBC2′s Harvest, Gardeners’ World celebrates the bounty our gardens have to offer at this time of year. Carol Klein is out and about gathering a wild blackberry harvest from the hedgerows and discovering a surprising number of more domesticated brambles that we can grow in our gardens. We join a champion vegetable grower in Yorkshire as he prepares for the biggest show of the season and Monty Don is at Longmeadow enjoying the fruits of his labours.

Summary: Monty Don tackles autumn lawn maintenance tasks before planting a series of bulbs in readiness for next spring while Carol Klein explores burnets – meadow plants that are becoming increasingly popular. Plus the team meets a man who has a particular fascination with the echinacea and Monty finds wildflowers useful as he attempts to plant up the steep banks of his new meadow mound.

Summary: Monty Don presents Gardeners' World from RHS Rosemoor in Devon. He will be finding out how they grow really productive fruit trees in the smallest of spaces and what it takes for a vegetable to earn the RHS Award of Garden Merit. Carol Klein will also be at Rosemoor getting seasonal inspiration from their extensive sedum collection, all nestled within the stunning borders in the garden. Joe Swift pays a visit to Scampston Hall in North Yorkshire to find out how a ten year experiment in naturalistic planting, by garden designer Piet Oudolf, is shaping up. Have you ever wondered what the life of an RHS volunteer is like? We visit RHS Harlow Carr near Harrogate to find out how the volunteers are vital in maintaining such a beautiful garden.

Summary: Monty Don is hard at work gathering his bumper apple, pear and quince crop and has some timely advice on how to store them. Although the festive season seems a long way off, Monty is also planting up some indoor bulbs that make perfect gifts for Christmas. The show visits an inspiring daffodil breeder in Northern Ireland who encourages us all to think about planting drifts of fabulous spring colour and Carol Klein travels to Wales and explores the intriguing world of the Eupatorium with a passionate gardener who has a rare and spectacular collection.

Summary: As autumn unfolds in the garden, Monty Don and his faithful sidekick Nigel have plenty to be getting on with, making the most of the season and preparing for the winter ahead. Carol Klein is in Surrey looking at wild and cultivated heathers. Hugely popular in the 1970s, these plants had fallen out of favour but Carol meets a plantsman to find out why they are well worth rediscovering.

Summary: Autumn is in full-swing at Longmeadow but the garden is still looking good. Monty is dividing his Pulmonaria to encourage a good display next spring and he will have some timely advice on protecting plants from the first frosts of the season. Joe is visiting a suburban oasis packed with tropical plants to find out what it takes to create and maintain exotic planting in a most unlikely location – an exposed back garden with heavy clay soil, just a few miles outside Bristol. Also, it’s been a bumper year for berries and our native rowan trees are heavy with fruit. Carol is revealing the myth and magic of this favourite tree in the wild, before exploring a stellar array of rowans from around the world, in the shadow of the giant telescope at Jodrell Bank Observatory.

Summary: With the warm weather on the wane, it’s time to think about preparing our garden borders for next year, but with his flower beds still looking good, Monty Don faces some tough decisions about what to ditch for his spring display. He also tackles that perennial hazard of slippery paths and shows us how best to deal with the problem. Carol Klein visits a National Collection of michaelmas daisies near Malvern to find out what makes it so special. And with Halloween just round the corner, we visit a giant veg grower who has a showstopper of a pumpkin big enough to scare any trick or treaters!

Summary: With gardens now going into hibernation, Monty Don is busy lifting and storing tender plants to keep over winter. This time of year is also about planning ahead for winter displays and spring colour and Monty has ideas and tips for planting up garden pots to provide a focal point through the coldest months. Rachel de Thame sees firsthand the mania for tulip growing in Holland when she visits the world's largest spring garden, Keukenhof. Joe Swift visits TV presenter Esther Rantzen and gets a privileged guided tour around her much-loved garden. Meanwhile, Carol Klein is at Glebe Cottage celebrating the dazzling delights of our autumn borders in the form of vibrant bulbous plants from South Africa

Summary: There's plenty to do to prepare for the season to come. Monty Don is clearing out spent crops and mulching his asparagus. Joe Swift's been to visit keen gardeners, Wayne and Gerardine Hemingway, to see how they combine sustainability with their designer-style. Carol Klein's exploring the history of the rose at Coughton Court, one of our best rose gardens and Monty plants a new rose of his own. What happens when you have to downsize and leave your much-loved garden? We catch-up with an Aberdeen couple, to see how they're making sure that some of their favourite plants can travel with them to their new life.

Summary: Monty Don starts to prepare the flowering borders in the Jewel Garden for winter and makes a big garden bonfire. Carol Klein celebrates berry-laden hedgerows and shows how to grow them into new trees. Rachel de Thame brings memories of Noel Coward and of the summer just passed when she visits Julian Clary in his garden. And Monty also puts up bird boxes around the garden in the hope that robins and wrens will seek them out over the winter and that they will be nesting in them next spring.