There’s no denying that Begonias are one of the most popular and sought after flowers for the summer garden. With a beautiful and rich assortment of colours and a long flowering season, there are so many qualities to enjoy when it comes to these vibrant beauties.
Check out our guide to find out more about tubers and how to plant them, as well as a summary of our beautiful types of Begonias, so you can find a variety that best suits you and your garden’s needs.
What are Tubers?
Tubers are a thick underground part of a stem or rhizome and Begonia sizes are measured by the diameter of the tuber. Many of our varieties are supplied either as:
- Standard size (3/4cm) – great for mass planting
- Exhibition size (5cm+) – excellent for large flowering displays
How Do I Plant Begonia Tubers?
- Planting Time: February – May
- Planting Time: February – May
These spectacular plants, also known as Russian Sage are incredibly popular right now, and it’s easy to see why.
Producing impressive tall spires of silvery leaves topped with spikes of gorgeous, tiny, violet purple bell-shaped flowers bloom in late summer. Loved by butterflies and bees, it makes a great cut flower with its lovely scent, which is a mixture of sage and lavender. Perovskia atriplicifolia Blue Spire holds an RHS Award of Garden Merit.
Native to central Asia, Russian Sage’s natural habitat is on dry plains and they are natural sun lovers. They are deciduous shrubs which, once established, are hassle free, drought tolerant (in fact they prefer it) and need an annual pruning in spring.
Perovskia will grow well in any soils, even poor or chalky, as long as they get really good drainage, water-logging will lead to root rot. They like to be in full sun and can withstand seaside air.
Prune hard annually in early to mid-spring for a healthy plant and better flowers that year. If you don’t they will come back week and floppy and generally be an untidy mess.
Cut back previous years flowering stems to within one or two buds of the older woody framework. Remove thin, weak and damaged growth. Then mulch and feed. For the first year keep them moist but not soggy to get them established. In following years they will withstand significant neglect!
They are best planted out in autumn when dormant – if you buy one that is in leaf in the spring be sure it hasn’t been growing in a poly tunnel as it may struggle when you expose it to the elements in your garden.
Russian sage is mainly used as an ornamental plant and is pretty versatile for pairing with lots of late summer ornamental grasses and perennials. You can create a really powerful display planting near other silver leafed perennials, near a lavender bush for example, and as both are bee magnets they are a great choice for wildlife friendly gardens. Tall bright coloured perennials will also look great with it in a mixed border, for examples look at Geums, Rudbeckia and Helenium to name a few!
The striking, showy flower heads of the humble Allium have long been a favourite of the modern cottage gardener. Blending beautifully into a summer perennial border, tall statuesque Alliums will cheerfully tower above lower growing plants just a seamlessly as smaller Alliums will add a zing to the front of a low border or edge.
Easy to grow and versatile enough to be able to be grown in borders, flower beds, patio pots and containers, where they really will pack a punch. A must have impact plant for spring and summer.
Beyond the garden Allium flowers and seed pods are excellent additions to cut flower displays. If you’re feeling creative they can be dried and sprayed to use as festive decorations.
Not just a pretty flower…
Also known as Ornamental Onions, Alliums are from the onion family and are a fantastic addition to any garden. They are great for deterring Aphids, protecting other plants in your garden as well as themselves making them excellent companion plants.
Loved by bees…
Over the last few years we’ve been running a Spring flowering Bulb Competition (see details for this years competition here) and as these past entries show, (above) Alliums are highly attractive to bees! Great for the wildlife friendly gardener.
For the best results position in full sun, and in well drained soils. For poorer soils treat with potash feed in the spring, which will help all your spring flowering bulbs and encourage them to return the following year.
Plant from early autumn at three or four times their own depth. The gaps you leave between Alliums will depend on their mature size, as well as your overall design ideas! For smaller Alliums plant 10cm apart, the larger varieties will need at least 25cm in between. We indicate planting depths/distance for individual varieties on their own product pages.
Most Alliums will do well in containers as long as you give them enough space. They need a good 4cm of compost beneath each bulb, so choose deep pots, and for soil use any multipurpose compost, such as John Innes No 3. Some prefer to mix equal parts soil to horticultural grit. Re-pot each autumn.
Allium Superglobe Mixed
This spectacular mixture of medium and tall Alliums varying in shades of creamy white, pink, mauve to the deepest purple-violet to create an amazing firework like display in your summer garden.
Those beautiful leaves…..when they’re no longer beautiful!
One of the most striking features of Alliums is the long, sturdy stems that keep those amazing pom-pom like balls of flowers suspended on high. From the base of the Alliums grows lush, lance like swords of green foliage. As the flowers fade the basal foliage will wilt and turn brown. Unsightly as it is, don’t try to remove the leaves until they have all completely died off or you will stop the bulb taking enough food for winter to ensure it comes back the following year. If you are including Alliums in your flower bed and border design it’s a good idea to ensure to surround them with low growing plants that flourish in late summer to screen the foliage as it browns. Lavender likes similar conditions to Alliums or Hardy Geraniums will come in after the Alliums and continue to the end of summer.
Thanks to their increasing popularity, Allium varieties such as Purple Sensation, the huge Globemaster variety, and Spharocephalon – more commonly known as The Drumstick Allium – have become staples for many gardeners.
However the more you delve into the species, the more weird and wonderful specimens you will find!
Can’t decide which Alliums to plant?
In this guide, our resident gardening expert Jeff shares his knowledge and advice on the different varieites of Alliums, to help you choose which Alliums are best suited for your summer garden displays.Summer Bedding
If you held off planting in May, now is the ideal time to clear these plants out of your greenhouse and get your summer bedding and hanging baskets finished. There is minimal chance of frost even this far north so line your baskets, prepare the soil and use some organic compost to fertilize the soil. Ensure you water regularly particularly if the weather is warm and dry.
Hot weather protection
Hot and dry weather can be just as dangerous as the harsh conditions of winter for your plants. Recent dry spells mean watering is more important than ever. Don’t let all your hard work go to waste. Regular watering of pots and baskets is essential to maximise your garden show this summer. You should also remember to keep your greenhouses cool and prevent scorch with shading and ventilation.Perennial Work
Prepare to tie up tall border perennials with support. Tall varieties such as Hollyhocks, Delphiniums and Lupins will need a little help and stakes can help prevent wind damage. You might also like to cut back early-flowering perennials such as Papavers as this will provide fresh foliage and possibly even a second flowering.
Protect fruit trees
Protect the newly developing fruit on your fruit trees from birds. This can be tricky as netting suggested last month for soft fruit, is not a viable option. We recommend using some of those unwanted DVDs or CDs in newspaper supplements by hanging these from your trees on string. The changing reflections of light created in a little breeze should keep birds away.Keep everything tidy
The warm weather and increased sunshine means that weeds are popping up everywhere and can be an eyesore in your garden. Keep an eye on these particularly during dry spells and it will make your garden look much neater. You should also now be cutting the lawn weekly, pruning many spring flowering shrubs and trimming hedges into shape. For bulbs, allow foliage to die down naturally before cutting back to ground level. Keep any waste for your compost bin!Lawn Care
If you’ve been lucky enough to get some relaxation time in the garden, you may have had furniature such as lounger out on your lawn. Be aware that this could damage grass and cause patches of yellow damaged lawn. This is easily prevented simply by moving your lawn furniture regularly. Keep up trimming your lawn regularly, including the edges, and apply fertiliser for a healthy looking growth.With March having arrived and with the weather finally beginning to warm up a little, it is now time to begin putting our gardening plans into action for the summer. Bluebells have sprung in abundance, Snowdrops are as reliably present as ever and the sight of the beloved Daffodil in the past few weeks has offered much encouragement to us gardeners (in a year were we have seen unusually high levels of rainfall earlier this year).Spring is always one of our favourite seasons and equally one of the busiest, let’s get planting and let’s get preparing!Each year in our own garden we love to test and trial new varieties and introductions, it keeps things new and interesting for us, but our garden is never without one of our most popular and best-selling summer flowering plants of all time – Begonias. The versatility, vibrancy of colour and relative inexpensiveness of Begonias, especially when grown for tubers, make them a must for the garden this summer and for many years to come. Whether grown for hanging baskets where they can trail beautifully or for containers and troughs where upright varieties will provide character and charm, please consider these perennial plants, we hope you will agree that once tried that you will find them difficult to ignore in the future.
A reliable, star attraction
Begonias, part of the Begoniacea family. have been around for many years and although some varieties can be grown indoors, typically here in Britain they have become one of our most commonly grown summer flowering perennials outdoors. Begonias, named by the famous botanist Charles Plumier, are well worthy if their place in the garden, flowering continuously through the summer months, often right up until the first frosts of autumn.Growing Begonias from quality tubers helps improve results, they are very reliable and can easily be lifted and stored indoors over winter, then replanted the following spring for continued flowering.We only supply the best grade tubers possible to offer you the best results. They are simple to plant, care for and the high level of results they achieve make them an easy choice when growing Begonias.Fill your hanging baskets with cascading Begonias
When looking to fill your summer hanging baskets we often look to traditional trailing plants such as Surfinia, Million Bells and trailing Geraniums. A superb way of mixing things up while still achieving excellent blooms is to try some trailing Begonias.Cascading or Pendula Begonias produce giant sized flowers through the summer months and are easy to plant on arrival. Ideal for hanging baskets mounted to the wall or for containers raised of ground level. For the largest blooms possible try growing on the Giant Exhibition sized 5/6cm tubers, guaranteed to produce up to 100% larger double flowers from each tuber. Chosen and used by the professionals at most garden shows and in large country homes, they are certainly worth that little extra money.
You can add a touch of fragrance to your trailing baskets with our range of Begonia Odorata tubers, which come in a range of colours. You can choose from ‘Odorata Red Glory’, ‘Odorata Pink Delight’ or the hard to ignore classic white ‘Odorata Angelique’. For the premium ‘Shower Bouquet’ effect we recommend the Balcony Begonia Collection, Gold and Pink ruffled edged petals, with a gentle cascading habit. Mix together for a wonderful blend as illustrated.
Try planting three 5/6cm tubers into an average hanging basket, in moist compost for a display that will cascade beautifully over the edges. Begonias are great lovers of moisture and during dry weather they should be watered in the early morning or the evening.
Give your patio pots and containers a splash of colour
The versatility of Begonias makes them great for the patio as well as in flower beds. By growing in pots and containers around the garden you can easily add a dash of colour, while having the added benefit of being able to move them around if the need arises. You can choose more compact and upright varieties which can be grown in pots, such as Double Flowering Begonias or for larger blooms with serrated edges why not opt for Fimbriata Begonias, a perfect choice for troughs on a windowsill.Non stop Begonias are compact enough for this but also are quite vigorous growers, so can virtually flower constantly through the entire summer, non-stop as the name suggests. Reaching heights of only 20cm they are great for the front of a border, with some Dahlias or Gladioli towering over them.One of our favourite varieties to grow in pots are the often ignored, but impossible to forget once you grow them yourself, ‘Maxima Switzerland’. The truly sensational dark leaves contrast effectively with the scarlet red flowers. A real treat for the container! ‘Bertinii Skaugman’ will offer your some of the most surprisingly large sized plants possible from a single tuber. ‘Flamboyant’ produces small flowers, but more than makes up for that by the abundance in which they appear.
Some top tips for success with Begonias 1. Begonia tubers may be started into growth from February onwards. The easiest way is to put them into shallow boxes containing a mixture of loam, leaf mould and sand. Meanwhile, prepare the potting soil.
Good top soil mixed with one-sixth part of manure should form the basis. To this prepared soil add leaf mould in a proportion of 1 part leaf mould to 3 of loam and enough sand to make a fairly porous compost. Soot and bonemeal added to the compost will be appreciated. As soon as the shoots of the tubers are about 2cm long pot them up in 15cm pots and place them into larger pots as the roots reach the sides of the pot.
2. Plant in full sun or partial shaded areas. The more access to sun, the more vibrant the colours will be.
3. You can feed once every two weeks with a high potassium up until the blooms begin to fade.
4. Make sure they are watered regularly during the summer and that the soil is not allowed to dry out. Begonias love moisture and will use up quite a lot during the hotter spells in the summer.
5. Lift tubers after flowering has finished and the leaves have begun to turn yellow. Store in a dry, cool (but frost-free) location over the winter. Store in soil that is only a little moist and keep this a little moist over the winter (with irregular watering) to keep the tubers from drying out.Get set for summer
Now would be a great time to think about your summer garden. There’s still a few months left of spring but it won’t be long until the weather improves, in theory. Add some seating areas and get your summer garden furniture now and you’ll be immediately prepared to take advantage of any sunshine we get.Summer BulbsYou can start planting summer-flowering bulbs out from mid-April. The wintermonths are over and we can expect far less harsh conditions for your plants. Keep an eye on the weather however as frost is always a possibility. If the weather forecast looks chilly, keep your bulbs inside until it perks up a bit. Shrubs and spring flowering bulbs will appreciate a bit of feeding at this time of year in preparation for the growing season.Control PestsThe first green shoots of new growth are very susceptible to damage from slugs and snails. Container grown plants can be protected by copper rings around pots. Slug pellet application is always effective however a gravel barrier/border can also be a natural deterrent. Weeds will also become an increasing problem with the weather improvements so keep those under control.Tidy up
The weather will begin to improve and provide a suitable climate for preparations for summer flowering bulbs and the ideal platform for tidying up your borders/shrubs after the long winter. Deadhead spring bedding plants and remove tired winter bedding. Prune shrubs and hedges now before the birds begin to nest to encourage healthy new growth. All deciduous shrubs need pruning as soon as they have flowered. Often the most leggy and untidy shrubs can be pruned hard now to create a much neater and compact specimen.Treat the Lawn
April is the most important month when caring for your Lawn. Your lawn will need cutting approximately twice a week by mid-April. Think about sowing new lawns or repairing any bare patches. Applying feed at the start of the month will be beneficial for stronger growth. In a mild period, apply feed evenly and economically. Use a wheeled distributor if possible. Now is also the perfect time to apply weed killer to your lawn.Get your trellis prepared for climbing plants
Now is the time to put up trellis in preparation for your existing or planned climbing plants. Soon your Clematis or Honeysuckle will burst into life and demand climbing assistance.
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