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Phlox

Soil and Site:

Border Phlox love rich, moist soil, but often have to put up with less than ideal conditions. In our experience they still flower well but don't get so tall. The key requirement is moisture retention, so dig in lots of compost to enrich the soil. A good thick mulch (blanket of organic material like old potting compost, bark or even grass clippings) helps keep in moisture and protect young shoots from winter frosts.

A sunny position is ideal but we've found most phlox are okay in a slightly shaded site.

Beautiful pictures of Phlox both in close up and in a glorious garden setting can be found on the late Hartmut Rieger's website www.helenium-phlox.de.

Seasonal Care:

Spring: Protect from slugs if damage is seen. This is not a big problem in our garden but each site is unique. Spring is the time split clumps and take off rooted offsets to make more plants. Use some balanced fertiliser and mulch when the soil is wet.

Summer:

Staking of tall varieties may be necessary (although ours never tall enough to worry about this). If you see split stems this is probably due to drying out followed by watering. If split stems are accompanied by badly distorted and whip-like leaves then your plants may have eelworm and they should be dug up and destroyed. Fortunately eelworm is pretty rare these days.

Deadhead regularly. If mildew is a problem in your garden, spray with something like Roseclear from late May once a fortnight 2 or 3 times. If you need to water the plants try to water at their bases and not on the leaves to reduce chances of mildew. Enjoy the great fragrance of the flowers particularly in the evening! Other rarely found problems include Caspid Bug damage - lots of blackened tiny holes in the leaves at the top of the plant: spray or ignore. Look out for "reverted" stems on variegated plants and remove them right at the roots if possible. Some phlox with striped flowers (e.g. Peppermint Twist) can revert and produce plain pink flowers. This may be due to the fact that just about everyone of these comes from micro-propagated stock - time will tell.

Take cuttings of healthy phlox and root in gritty compost.

Autumn:

Keep deadheading to get more flowers! You can split phlox now but you may have to pot up and protect small divisions to get them through the winter.

Winter:

At the start of winter cut the stems right down to the ground and clear up as much of the fallen leaves as possible and don't put this waste on the compost heap - dispose of it in your green waste bin or burn. This reduces risk of eelworm and mildew for next year. If your garden gets penetrating frosts, mulch around the rootstock to protect it.

Using Phlox:

The major design factors are:

1. All Phlox are pink to some extent. When growers describe Phlox as "Red" or "Blue" these colours have a big lump of pink in them and they can sit clashingly with red or true blue. Interesting or glaring depending on your personal taste.

2. The scent is sweet but not always powerful, so plant them where you can get close to the scent

3. Phlox perform best where they have plenty of air circulation around them, so don't crowd them in.

Propagation:

Phlox can be propagated by:

Division - dig up in early spring and break or chop into sections each with roots. Plant out straight away. Division can be done in autumn but pot up and protect small divisions.

Irishman's cuttings - separate off rooted offsets in spring. Pot up or plant out.

Soft cuttings - take tip cuttings in early summer as very young plants are difficult to keep through winter.

Root cuttings - take 2in root cuttings in winter. These can take 2 years to form flowering plants.

Phlox paniculata Amethyst

Lovely amethyst purple flowers, looking deeper and richer in the evening. About 2ft 6in tall and late flowering: mid July - September.

SOLD OUT - If you've ordered this variety we have reserved stock for you.

Phlox amplifolia Cv.

Flowers from late June and about 3ft tall in our garden. Its flowers look "bluer" in the evening. It blooms for a long time (right into September) and is very healthy and very fragrant.

We obtained this as "Prospero". My thanks to Hartmut Rieger for his suggestion that the plant bears an affinity to Phlox amplifolia

What ever its true name it remains one of the best Phlox in our garden.

Price £4.50 (9cm pot)

Phlox Blue Boy

New to our catalogue

Phlox blue and fragrant. An old English variety from the 1950's

Medium tall and flowering from mid July

Price £4.50 (9cm pot)

Phlox paniculata Blue Paradise

This is one of the best "blues" which is at its best early in the day. Moreover is has a good fragrance. In the spring the fresh shoots are flushed with red and purple. It grows to about 2ft 6in tall in our garden but said to be a bit taller in very good soil. Flowers from early July until late September if dead headed.

Read more about Blue Paradise in July Garden Dairy

View our Sway about this lovely flower: click here to open

Price £4.50 (9cm pot)

Phlox paniculata Blushing Bride

New to our catalogue 2017

Bridal white flowers with a pink eye on short stocky plants. Some fragrance. Mid Season flowering

Price £4.50 (9cm pot)

Phlox paniculata Border Gem

Border Gem is fine old English variety introduced by Fairbarn in 1913 with rich deep purple flowers on sturdy, 2ft 3in tall plants from late June.

It has a good fragrance.

Price £4.50 (9cm pot)

Phlox paniculata Bright Eyes

(Symons-Jeune 1967)

Bright Eyes lives up to its name with a real twinkling eye in a pale pink face. It is a good doer in the border, flowering for a long period and has a good fragrance. The foliage is dark and sets off the flowers to a tee.

About 2ft 9in tall. Flowering from early July.

RHS Award of Garden Merit.

Price £4.50 (9cm pot)

This Brimstone butterfly is stocking up on the nectar supply from Phlox Bright Eyes. Brimstones are around in early spring and again in late summer. Phlox are idea for them as their long tongues can reach down the tube of the flower

Phlox paniculata Charlotte

Beautiful, rounded heads of pale pink, fragrant flowers. A real head turner.

About 2ft 6in tall and very upright.

Price £4.50 (9cm pot)

Phlox divaricata Clouds of Perfume

This is a woodland phlox with as the name suggests masses of fragrance to powder blue flowers in spring. It needs a shady setting and lots of leaf mold making an acid or neutral soil.

About 9-12" tall in flower and forming a mat of ground-covering leaves.

Price £4.50 (9cm pot)

Phlox paniculata David

(Dr. Hans Simon and Richard Simon 1991)

David is a newly introduced white Phlox that blooms from early July. It is about 3ft tall in my garden and has a slight fragrance. Flowering from mid July. Its leaves a light green and healthy.

The petals are white but the flower tube is pink giving the suggestion of a pink eye in bright sun.

Price £4.50 (9cm pot)

Phlox Discovery

Discovery has lovely flowers. In bright sun they are pale pink with rose eye. In dull weather the pink is very pale, nearly white. It is fairly tall (4ft) and is very fragrant. It flowers from early July and has a particularly long flowering period for us.

Price £4.50 (9cm pot)

Perfect Partners: Phlox Discovery and Salvia verticillata Purple Rain

Phlox Eden's Flash

This is one of our favourites with shell pink flowers, a healthy constitution and a good fragrance. It is early to flower (from mid June) and compact in habit (about 2ft tall). Some fragrance.

Price £4.50 (9cm pot)

Phlox Elizabeth Arden

(Symmons-Jeune c1950)

This glamorous lady has very large, silky pink flowers from mid July plus a strong, sweet perfume. She is 3ft tall and elegant with it. What else would expect from a Phlox of this name?

Price £4.50 (9cm pot)

Phlox Europa

New to our catalogue

White with a central pink halo. Short and early season flowering

Price £4.50 (9cm pot)

Phlox Flamingo

This Phlox was one of the stars of the recent RHS trials with its masses or extra large flowers. 3ft tall.

RHS Award of Garden Merit.

Price £4.50 (9cm pot)

Phlox Franz Schubert

Franz Schubert has very large flowers in a refined shade of pale violet. He has a good fragrance, starts flowering in mid July and grows to about 3ft tall. This variety was bred and introduced by Alan Bloom and named after his favourite composer.

Price £4.50 (9cm pot)

Phlox Glow

New to our catalogue 2017

The proper German name is Glut.

Dark, beetroot red foliage in spring, equally dark crimson flowers in July and August. Fairly short.

Price £4.50 (9cm pot)

Phlox Graf Zeppelin

(W. Pjizzer c1939)

Old variety with red-eyed white flowers. About 2ft tall.

Price £4.50 (9cm pot)

Phlox Katherine

(Martin Viette)

Lovely lilac and white. About 3ft tall and flowering from late June.

Price £4.50 (9cm pot)

Phlox paniculata Kirmesländler

New to our catalogue

Old Karl Foerster variety from 1938. Tall. Later flowering

Price £4.50 (9cm pot)

Phlox Kirchenfürst

(Karl Foerster 1966)

This impressive Phlox has rich purple flowers on 2ft 9in plants. Flowering from early July.

The literal translation of the name is "Prince of the Church" - possibly referring to the archbishop's purple colouring.

Price £4.50 (9cm pot)

Phlox Lavender Cloud (Lavendelwolke)

(Karl Foerster 1939)

Old variety with beautiful, billowing heads of pale lavender flowers from late July to September. 3ft tall

SOLD OUT - If you've ordered this variety we have reserve stock for you.

Phlox Little Laura

Short growing with masses of white-eyed, purple-pink flowers from mid July for a very long season. About 2ft 3in tall.

Price £4.50 (9cm pot)

Phlox Luc's Lilac

(Cohn Jansen c1990)

Luc's Lilac sports large heads of star-shaped bluish lilac flowers from mid July.

He has a pleasing light fragrance.

The foliage is very healthy. The plants grow to about 3ft  - 3ft 6in tall.

Price £4.50 (9cm pot)

Phlox Maude Stella Dagley

(Tony Dagley)

This new Phlox has lovely pale pink flowers with a white eye and edge on 2ft 3in ft plants. She blooms for a very long time (mid Jul - Oct) and does well even in a partly shaded spot. The flowers have a particularly good fragrance.

One of our absolute favourites.

Read our Garden Diary entry about this plant for August 2009

Price £4.50 (9cm pot)

Phlox Miss Kelly

This is one of our favourite varieties. She has large pale violet and white pips on good sized heads from early July.

She grows to about 3ft 3in tall and has a great fragrance.

Price £4.50 (9cm pot)

Phlox Miss Mary

This variety is identical to "Red Riding Hood"

Miss Mary is one of the Spring Pearl Series. These are crosses between Phlox paniculata and divaricata.

She is compact - about 2ft 3in tall and bushy with bold carmine red flowers from late July.

Price £4.50 (9cm pot)

Phlox Miss Pepper

A real stunner. Big heads of bright-eyed pink flowers and masses of scent. Healthy, 3ft 3in tall and flowering from early Aug to late Sept.

Price £4.50 (9cm pot)

Price £5.00 (9cm pot)

Phlox Monte Cristallo

(Karl Foerster 1964)

A lovely reintroduction to the UK, this Phlox has very large heads of white flowers speckled with pink on 3ft tall plants from late July onwards into autumn. Fragrant.

The amount of speckling does vary with the weather and appears most prominent in warm, sunny conditions and less (or even absent) in cool, dull conditions. (See photo below for cool weather colour).

The name of course means "Crystal Mountain".

Price £4.50 (9cm pot)

Phlox Mount Fuji

This is one of the best pure white flowered varieties. Although the pips (florets) are small, they are held on large, impressive trusses and they are very Fragrant. It is late flowering and tall: about 4ft. This is one of the most healthy and tolerant of Phlox.

It is also called Fujiyama in some books.

RHS Award of Garden Merit (H4)

Price £4.50 (9cm pot)

Perfect partners (photo right): Mount Fuji is set off beautifully by the dark foliage of Ageratina Chocolate

Phlox Newbird

Really good dark wine red. About 3ft tall and flowering late June to early August.

One of our most popular and asked for Phlox.

Price £4.50 (9cm pot)

Phlox Othello

Othello is pictured right in our garden with Veronicastrum Lavender Tower.

(Symmons-Jeune 1960)

Othello has masses of small deep claret pips and some fragrance. The leaves are purple flushed in spring. He gets quite tall, growing to 3ft tall. He starts flowering in July and is still blooming in October.

Price £4.50 (9cm pot)

Phlox Oljenka

New UK introduction 2017

New to the UK, this is a Russian bred phlox with stunning, glowing pink and white flowers. Stays quite short in our sandy soil. Fairly late flowering

Price £4.50 (9cm pot) Only a few for sale in 2017

Phlox paniculata Prince of Orange

Phlox Prince of Orange

(A. Schöllhammer 1950)

This is one of the best "orange" Phlox. It is salmon-pink with a magenta eye. Unlike some other "orange" varieties it doesn't scorch in the sun. Prince of Orange is also sometimes called "Orange Perfection".

He is about 2ft 3in tall and flowering from early August.

RHS Award of Garden Merit

Price £4.50 (9cm pot)

Phlox Starfire

(Ruys 1937)

Starfire is one of the best loved Phlox with its deep red stems and red-flushed leaves topped by deep crimson flowers from mid July. It grows up to 3ft 6in.

RHS Award of Garden Merit (H4)

Price £4.50 (9cm pot)

Phlox Starry Sky (Sternhimmel)

(Schöllhammer 1942)

Such a delicate shade of blue and white with that starry centre. Flowers from late June and about 2ft 6in tall. Fragrant.

God is in his heaven and all is well.

Price £4.50 (9cm pot)

Phlox Tenor

New to our catalogue

Very deep pink with dark foliage. Tall and late season flowering

Price £4.50 (9cm pot)

Phlox Uspekh

(Gaganov 1937 Also called: Uspech and Laura.)

This is one of the most striking Phlox in our garden with its bright purple flowers in their bold white centres. It grows to about 2ft 6in tall and flowers from early July. Fragrant.

Price £4.50 (9cm pot)

Phlox White Admiral

Phlox White Admiral

This a very late flowering variety with large rounded flowers. It grows to about 4ft tall and is very fragrant. It has healthy dark green foliage and grows well in part sun as well as full sun.

Every county seems to have its own "White Admiral", They are all white and that's where the similarity ends; some are tall, some short; some early, some late. Ours came from Worcestershire and is tall and veey late flowering.

RHS Award of Garden Merit.

Price £4.50 (9cm pot)

See this plant in partnership with the lovely Chocolate Knitbone (Ageratina altissima Chocolate) in our Garden Diary for October 2009

Phlox Windsor

Windsor grows to 2ft 6in tall and flowers from mid July. Its flowers are stunning glowing pink flowers with a deep rose eye. Some fragrance.

RHS Award of Garden Merit

Price £4.50 (9cm pot)

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