Fall can be the best time of the year to divide and transplant many of your hearty perennials. Do not use flowers cut from plants that are clearly affected by mildew, and cut any leaves from the stem before placing the flower in the vase. If you’re splitting phlox plants in fall, be sure to do so at least four to six weeks before the first expected frost date for your location, and mulch the divided plants well before winter sets in. Ana is an experienced writer and an urban gardener, making use of limited space on her balcony to grow vegetables every season. If the plant seems green, lush and generally healthy, it may well be that the nitrogen to phosphorus ratio in the soil is skewed, favouring the production of foliage over flowers. The name ‘phlox’ comes from the Greek for flame, perhaps making reference to the wild species’ vivid flower colours. Phlox grows well in full sunshine provided it has freely available moisture. Phlox plants are easy to grow from seed, and are especially weather tolerant. She got into gardening thanks to her grandmother, who introduced her to the wonderful world of succulents. It seems to be agreed that they are best if exposed to direct sunshine that adds up to at least four hours on a sunny day. This species is an erect herbaceous perennial with oval or lance-shaped leaves. Groups of five or seven are most effective. Phlox subulata is even easier, just cut out any old woody stems as these don’t produce any flowers. Going forward, use a high potassium fertiliser such as sulphate of potash or tomato feed in late summer. There are 67 species of phlox, including annuals and shrubs. Some enthusiasts recommend a spring move of phlox plants every four or five years, as they can deplete the soil of certain nutrients, and to help prevent the build-up of disease. With a sharp spade, just chop and replant, perhaps a little deeper than before. It’s a firm favourite with wildlife – pollinators and birds are drawn to this variety as it offers food and shelter. About 24 hours before phlox plant division, water the plants deeply and thoroughly. P. 'Wendy House' is topped in mid summer with very dark purple flowers, whose color holds well in hot weather against the mildew-resistant green foliage. If mildew does affect the plant, it is best cut down to soil level. Select healthy plants that display bushy, bright green foliage. While some types of phlox such as Phlox drummondii are available as seeds, the more common Phlox paniculata cultivars are bought as bare root or container grown plants. Woodland phlox, Phlox divaricata ‘Clouds of Perfume’, can be tricky to grow but is worth the effort. Phlox is very easy to grow and requires little attention, though plants can take a couple of years to establish fully and reach their maximum potential. Available to buy online in the UK. It is important to keep perennial phlox plants moist, so water regularly, however try to ensure that you water the soil and not the leaves as they are susceptible to mold. Extra attention is needed in the early summer when the days are warm and the nights cool. The sprays of candy-pink flowers are sweetly scented, and grow on tall stems up to 1.2m tall. Orange and reddish varieties have also been developed. The flowers of  ‘Jeana’ are amongst the smallest of all phloxes, though they are nevertheless attractive to gardeners as well as insects. Phlox has rather fine roots that are a bit more fiddly to take cuttings from, but the technique is generally successful. In early spring cut back P. paniculata then feed and water and mulch with compost. Phlox are able to grow in both partially shaded and sunny areas, and ideally should have a moist soil that is rich in organic matter and of pH 6.5 to 7.5. Phlox paniculata. Those native to boggy areas, such as Phlox paniculata, require full sun and moist soil. A bushy, upright herbaceous perennial growing up to 1m high, ‘Miss Ellie’ has dark, lance-shaped leaves and exuberant panicles of fluffy, rose-pink and fragrant flowers from mid to late summer. The half-hardy annual group are useful as bedding plants and for growing in containers. Applying a mulch in spring and autumn will also help maintain soil moisture and boost its fertility. The rounded heads of fragrant, dark-eyed violet-blue flowers appear in early summer, and bring a lovely early fragrance to the herbaceous border. If you are moving a plant from a pot, dig a hole about twice the size of the pot’s diameter and place the plant so that the top of the root ball is even with the soil’s surface. Some cultivars have greater mildew resistance, and horticultural trials in the United States suggest that Phlox paniculata ‘Jeana’ is one of the best types to grow in badly affected gardens. Often phlox are categorized as early season, late midseason, and late season bloomers. To take root cuttings, dig up the plant with as much of the root-ball intact as possible. Do not water phlox late in the evening or at night as this can facilitate the establishment of powdery mildew. How to Divide Phlox Plants. Sand phlox, Phlox bifida, is native to the Midwestern United States and is found in dry or sandy areas, including rocky outcrops and limestone glades. Once your phlox are growing, keep the soil moist to slightly dry. Perennial bearing scented rosy purple flowers with deep pink centres Aug-Oct. Ht 90cm. A wide range of phlox cultivars is available from nurseries and garden centres. Botanical name: Phlox Common name: Perennial phlox Border phlox are a popular choice for cottage-style gardens and romantic herbaceous borders. Plant creeping phlox in spring. Creeping phlox spreads throughout an area hastily and is one of the few spring blooming plants that can be used as both a ground cover and a garden border. Plant phlox in the spring—after the threat of frost has passed—and space the plants 1 to 2 feet apart. A blooming ornamental beloved by birds and butterflies, it's a beautiful addition to any garden. Q My phlox has been growing in a sunny border with some Achilleas for five years. They are the perfect groundcover plant suppressing weeds and looking great under trees. ‘Prospero’ grows to 90cm tall. Phlox maculata ‘Natascha’ Top Planting Tips. DIY Garden is a UK garden website that aims to inspire, advise and help you improve your outdoor space. A great choice for the white garden, ‘David’ has a bushy and upright form and reaches a height of a metre, or even more in good conditions. Phlox is a plant that produces delicate star-shaped masses of white, pink, red, purple or blue flowers. 0. Phlox are herbaceous plants most commonly known for making billowing mounds of scented flowers in summer borders. Call us Today ! The most important is that the last traces of frost must have passed over. Use a good quality potting compost with 25% perlite to improve drainage. Only take cuttings from vigorous and healthy plants to avoid spreading or perpetuating disease, especially viruses. The container needs to be well drained, large and deep in order to accommodate the plant and its roots. Borders were traditionally laid out with the taller plants at the back, mid-size types such as phlox in the middle and shorter plants at the front. Check a farmer’s almanac or ask at a local plant nursery to find out when the last frost is expected for your area.” Some contemporary gardeners are rebelling against this tradition with less regimented designs, for example using taller but visually permeable plants such as grasses nearer the front of the border. Years of breeding have resulted in shorter, more garden-worthy cultivars that flower in a variety of different colours. This article focuses on caring for the upright, herbaceous, perennial phloxes. During the move, the plants can be divided, using the outer part of the clump with healthy-looking shoots and discarding the old, brown, woody centre. If necessary, you can add peat moss or perlite to improve drainage. Login; Sign Up; Username Password Largely pest-free and disease-resistant, they make the perfect, low-maintenance border plants. If not, it is best if they receive some shade for part of the day. A good time to divide your phlox is during the early spring, late summer, or early fall when the plant is as wide as it is tall. This cultivar grows up to 1.1m high. ‘Prince of Orange’ is an erect, herbaceous perennial up to 80cm tall. ‘Blue Paradise’ is a gorgeous border phlox, bearing fragrant, violet flowers with a faint paler patch and dark eye. Provide some ferny foliage to set off the texture and colour of the flowers. ‘Le Mahdi’ is a clump-forming herbaceous perennial to 1m tall, with dark foliage and panicles of fragrant violet-blue flowers. The plants not only produce an abundance of colour but also a delicious fragrance that evokes the very essence of a traditional English cottage garden. Keep the cuttings moist but not over-wet, moving the tray to a well-lit position once the green shoots emerge. Annual phlox is widely grown as a summer bedding plant, where its spreading habit makes it perfect for filling gaps at the front of a border, or as part of a summer container display. Light: Both varieties of phlox enjoy full sun, although the upright Garden phlox can take a little afternoon shade, particularly in the south. A shorter, robust and weather-resistant variety up to 70cm tall, ‘Danielle’ produces clean white flowers with a wonderful scent over an extended period throughout the summer. Pruning Phlox. Creeping phlox is a perfect plant for landscaping or rock gardens. Typically, it is recommended to plant after the last frost, which will vary depending on your zone. All have been given the RHS Award of Garden Merit following a range of horticultural trials over many years. Its sweetly fragrant pink petals frame a dark pink eye, and are backed by contrasting purple sepals. It is earlier flowering than most, blooming from the beginning of summer. This plant is native to North America. For best results, however, plant it in a sunny location where soils are moist but well drained. Phlox ‘McDaniels Cushion’ forms a low, spreading carpet of slender, mid-green leaves and bears masses of pretty pink or purple flowers in summer. Common names: Garden phlox, summer phlox, tall phlox, border phlox . A blooming ornamental beloved by birds and butterflies, it's a beautiful addition to any garden. When spring arrives cut back hard to thin the phlox, just leave 4 stalks. In the wild, Phlox paniculata can grow to nearly 2m, and typically bears pink flowers. Gardeners have always enjoyed border phlox. It’s ideal for growing in a rock garden or container. Purchase creeping phlox starter plants at a garden center or nursery. From early September right through until early May will be fine to propagate and/or move them. To collect seeds it is better to choose a dry Sunny day. As well as being fragrant and long-flowering, most cultivars attract a variety of bees and other pollinating insects. The compost will need to be kept moist, always watering early in the day. How to plant phloxes When planting, make sure that the soil is enriched with either garden compost or well-rotted manure. These dense plants are appropriately employed as ground cover to grow over large areas of land. In spring, its plants should be planted at a distance of 1 to 2 feet depending on the variety. Most types of Phlox paniculata provide plenty of pollen and nectar for pollinating insects. Add the compost to a 2 to 4-inch surface on this bed. Discover seven great varieties of phlox, below. A robust and versatile sweet cherry variety, suitable for growing in containers. When dividing phlox in spring, it should be done just as the new shoots appear. Ensure the compost in the pot matches the level of the surrounding soil when preparing the hole and planting out. Flowering over a long period, phlox are hardy, easy to grow and many don’t require staking. Most of the popular garden varieties derive from the species Phlox paniculata, an elegant, erect, herbaceous perennial with sword-shaped leaves. Phlox subulata 'Pharao Blue Eye' (Alpine phlox 'Pharao Blue Eye') will reach a height of 0.15m and a spread of 0.45m after 5-10 years. Less light and they will grow with poor vigour and be susceptible to mildew. Phlox arrived in the UK as a garden plant from its native North America in the early 1800s and soon became a firm favourite for the summer herbaceous border. You'll receive 50 each of English bluebells, single snowdrops, double snowdrops and winter aconites. Plants and flowering can be enhanced through providing them with a sprinkling of blood, fish and bone each year before the spring mulching with rich organic matter. Botanical name: Phlox Common name: Perennial phlox Border phlox are a popular choice for cottage-style gardens and romantic herbaceous borders. There are 67 species of phlox, including annuals and shrubs. Q What types of phlox are best for my wildlife garden? Red berries grow on sleek green leaves to increase the aesthetic appeal of this bushy shrub. A dose of water-soluble fertiliser in the autumn will also keep the plants vigorous. Add plenty of organic matter, such as SylvaGrow peat free compost, when planting to ensure soil remains moist but free draining. Q The phlox smells lovely at the far end of my border – will it do well in the vase if I use it in an arrangement for the table? Gardeners can use larger pruning shears, or hedge trimmers for very large phlox, and leave only 2 inches to 4 inches of plant stem. Creeping phlox roots so well that it doesn’t even require rooting hormone, although this product will help speed along the process if you’re keen to ensure success. It’s ideal for growing in large clumps at the edge of a border or beneath deciduous trees. It produces panicles of very fragrant, vibrant, orange-red flowers in mid summer. The flowers are pollen and nectar-rich, and they attract hordes of pollinators such as honey bees, bumble bees and butterflies. Border phlox. Wash off the soil, and use a sharp, sterilised knife to cut off 5cm lengths of good, healthy roots. Deadheading will keep fresh flowers coming through the summer. Sometimes it is possible simply to pull rooted pieces from the edges of clumps without digging up the whole plant. Browse J Parkers range of premium Phlox plants. How to grow phlox flower plant. … ‘Miss Pepper’ grows up to 1m high, but has sturdy and relatively wind-resistant stems. Once the season is over cut back hard to tidy the plant. The following list includes some of the most popular, reliable and widely available cultivars. After planting, water the container generously to settle the soil around the roots, trying to avoid wetting the foliage. Replacement phlox plants should be grown elsewhere in the garden, and good garden hygiene imposed, removing all dead leaves. Cultivars of alpine phlox, such as Phlox subulata, thrive in full sun and well-drained soil. Most phlox cultivars are perennial. Border phlox. History and origin: Phlox are native to many parts of the eastern and central United States. Beds and borders, Cottage/Informal, Drought Tolerant, Edging, Garden edging, Gravel, Ground Cover, Low Maintenance, Mediterranean, Rock, Underplanting The species Phlox amplifolia also performed very well, though it is not widely available in the UK. Phlox 'Nicky' Phlox paniculata growing in a back garden border in Northampton, UK. Established 1933. Maggie Moran, the well-known horticulturist, recommends that whether you are transplanting potted phlox plants or growing them from bare roots, you will have to begin the planting from springtime itself. You’ll need to remove the entire phlox plant from the ground, making sure to include its root ball. The colours are wonderful, the evening scent is captivating, they are easy to grow. 'Stella' bears beautiful blossom in early March, then from mid-July, plump, sweetly flavoured fruits can be picked. Becky Mathews is an enthusiastic gardener that shares her outdoor spaces with nature. It’s much more tolerant of dry soil than other species of phlox. Many herbaceous perennials are shy flowerers when they are over-provided with nitrogen and under-provided with phosphorus. Affected plants can be used to take root cuttings before destroying them if desired. There are also cultivars with two-coloured flowers, and a few with variegated foliage. By planting varieties of each, you’ll have phlox in full flower all summer long and well into autumn. One of the more popular white varieties of phlox, ‘White Admiral’ is upright and grows up to 90cm in height. Once blooming occurs deadhead dying flowers to prolong the season. Phlox drummondii ‘Moody Blues’ has a compact, bushy habit and bears flowers in a variety of shades of blue. Phlox Varieties. Phlox × arendsii ‘Miss Mary’ (Spring Pearl Series). Always happy with her hands in the soil, or rescuing wildlife in trouble, she enjoys writing about her environmental successes and failures, Established plants will deal with temperatures below freezing, Rich, moisture retentive but well drained loam, Blood, fish and bone in spring and water soluble fertiliser in autumn, Slugs, eelworm, mildew and other fungal infections. Add a general purpose fertilizer when planting phlox seeds, then continue to do so once a month. Propagation of the cultivars is easiest by division or root cuttings. Exclusive offer from gardenersworld.com shopping deals, Get £10 off the fantastic 1000W Cooks Professional Stand Mixer, Whip up some of your best bakes yet with this powerful and easy-to-use stand mixer, Subscribe to BBC Gardeners' World Magazine and receive 12 issues for only £39.99 - saving 39%. Phlox bifida ‘Ralph Haywood’ bears large blue flowers in late spring. 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