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Category: Tips for Growing Series

Help with growing popular and interesting flowers and plants. Simple, easy guidelines for growing good plants.

Growing Butternut Squash

Growing Butternut Squash

Butternut Squash

Butternut squash are delicious, prolific and easy to grow. They like to ramble and scramble, pinch out when the lead shoot is 3 feet long to encourage fruiting. Each plant can produce 4-8 fruit each weighing over 2 pounds. Butternut Squash has a sweet, nutty taste that is similar to pumpkin. It has yellow skin and orange fleshy pulp. When ripe, it turns increasingly deep orange, and becomes sweeter and richer.
I am going to try again this year as I have never been successful with this crop. I will content my self with 2-3 fruit per plant and will pollinate by hand.

  • Grow from seed when the risk of frost has gone and plant out 3 foot apart.
  • During the growing season it is vital to ensure that the plant never dries out to stop fruit being shed.
  • Deep beds with a mulch of rotted horse manure and a weekly feed with Miracle-gro or Phostrogen will help crop size.
  • Keep stalks/stems dry to avoid rotting.

Harvesting and Storing

When the fruit is ripe the texture of the skin becomes firm, golden in colour and will easily resist the pressure of your thumb nail. Like a melon, it “rings” when given a good rap.
Storage as for all vegetables of this type is in a clean, cool, dry place. I have seen them stored in a loft space on top of fiber glass insulation.
If picked in late September they can last until April the following year.

Winter Barbara Butternut F1  Seeds by Thompson Morgan

Waltham Dutchy Originals  Seeds by Thompson Morgan

More Cultivation Instructions

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Grow Leucanthemum & Shasta Daisies

Grow Leucanthemum & Shasta Daisies

Leucanthemum is one of the RHS perennial plants of the month. The variety I grow are shasta daisy flowers that are a mass of single white blooms with yellow centres appearing from June to September. They seed and spread prolifically and form robust clumps spreading up to 3′ and flowers are on 2-3′ stems that flop if not supported.

Sunlight and Shasta Daisy

Grow Leucanthemum Daisies

  • There are double and semi double varieties like Leucanthemum Superbum ‘Wirral Supreme’ or Aglaia.
  • The old fashioned Leucanthemum Superbum ‘Ester Read’ is popular for old cottage gardens with clumps of fluffy double white flowers growing 2′ or more.
  • Leucanthemum are useful as cut flowers.
  • Plants are floriferous and can be used in many garden situations.
  • Most varieities grow 12-24 inches high but Leucanthemum Superbum Phyllis Smith will reach 36 inches tall at the back of a herbaceous border.

Leucanthemum

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Growing Variegated Leaves

Growing Variegated Leaves

gera

Variegated Leaves can be the most attractive feature of a garden or houseplant.
Colour schemes vary and there is likely to be a colour combination that pleases most gardeners.

020

Gardeners Tips for Growing Variegated Leaved Plants

  • Consider the light when planting. Many colours can get ‘burned out’ by strong sunshine.
  • If you are growing for leaf colour rather than flower you need good roots and then a nitrogen based fertilizer.
  • I have a semi-shaded area just for variegated plants.
  • Often the flowers suffer on these plants as they compete for attention and scarce resources. The bi-coloured phlox or Hydrangeas are an example.

Book Cover
Extraordinary Leaves from amazon.

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Growing Red Hot Pokers (Kniphofia)

Growing Red Hot Pokers (Kniphofia)

over-red-hot-poker

Gardens look better for some variety in the height in the planting. I try to grow a variety of perennials including Red Hot Pokers to give some tall plants chance to shine. As part of the lily family these Kniphofia are sometimes called Torch Lily.

Red Hot Poker (Kniphofia) have flowered well this year and they throw up their well known spire of blossom in shades from deep red, orange, yellow and white even to a new greenish form (Kniphofia Green Jade).

Red Hot Poker

Growing Red Hot Pokers

  • Red Hot Pokers have long sword like narrow leaves and the flowers can last in a vase for up to two weeks.
  • The Kniphofia (Red Hot Poker or Torch Lily) needs abundant moisture during its growing period so good draining  soil rich in organic matter, is ideal.
  • Red Hot Pokers need full sun to flower upto 4 feet tall in mid summer. Prune the spikes  after blooming.
  • To propagate remove young plants from the edge of a clump  in spring or they can be grown from mixed seeds from Thompson & Morgan.
  • Provide adequate spacing to encourage clumping up as they may spread up to three feet.
  • Although Red Hot Pokers are drought tolerant they will do better if they are given plenty of water during hot weather.

Growing White Hot Pokers

  • Kniphofia known as Red Hot Pokers come in a range of colours and I like the cream or white.
  • This variety K. citrina is a stately lemon coloured spire of flower about 3 foot tall. They are good clump forming perennials with narrow strappy evergreen leaves.
  •  For other yellow flowers try Candelight, Little Maid (AGM) or Atlanta.
  • The sword like, strappy leaves, clump together well.
  • The plants look good when massed together in clumps.
  • Pokers are generally hardy herbaceous perennials -try Kniphofia Citrina a 3 foot lemon colour or giant 6 foot Royal Castle.
  • If space is limited Kniphofia hirsuta is 18 inches high and forms dense, tidy clumps. The flowers are good for cutting.
  • If the leaves are untidy in Autumn cut them down to half their height.
  • Kniphofia combine well with many shrubs, grasses and Yuccas. They like well drained soil in a sunny position.
  • White Hot Pokers can also look good in a Mediterranean gravel or paved area.

AGM varieties to grow

  • Kniphofia ‘Brimstone’ Slender spikes of golden-yellow from green buds.
  • Kniphofia caulescens Coral-red, fading pale-yellow.
  • Kniphofia galpinii Dainty spikes of very intense, rich orange
  • Kniphofia ‘Royal Standard’ Deciduous. Bright yellow, scarlet in bud
  • Kniphofia ‘Toffee Nosed’ Creamy-white tipped toffee-brown.
  • Kniphofia ‘Bee’s Sunset’ Deciduous. Soft yellowish-orange
  • Kniphofia triangularis Free flowering. Reddish-orange

Other Resources

Royal Horticultural Society RHS ‘Gardening for All’
National Council for Conservation of Plants and Gardens ‘Conservation through Cultivation.’
Garden Organic National Charity for Organic Gardening.
BBC Gardening

Red hot poker

Tips for Growing Pulsatilla the Pasque Flower

Tips for Growing Pulsatilla the Pasque Flower

pasque-flowers

The Pulsatilla is also called the Pasque flower or meadow anemone and although related to the anemone it is a separate part of the buttercup family Ranunculus.

Also commonly known as the prairie crocus, Anemone Pulsatilla, Wind flower and Easter Flowe.

  • This clump forming herbaceous perennial is 6 inches tall and the flowers can be red, blue, purple or white and have six velvety petals with curled, pointed tips surrounding a ring of bright yellow stamens. Flowering around Easter they have the alternative native British name of Pasque flower.
  • All plant surfaces are covered in fine, soft hairs as can be seen in this images.The attractive seed heads which follow are spherical with silvery plume like styles raised on elongated flower stems.
  • Not to be out done the foliage is exquisite in spring.
  • The plant is best treated as poisonous although it is occasionally used in herbal medicine.
  • Protect from excessive wet winter weather. They tolerate alkaline soils and are found naturally in the wild.
  • They dislike root disturbance and can be difficult to establish. They can be grown from seed or propagated by root cutting but try not to disturb the main plant as they take several years to flower at their best. Plant when small and leave undisturbed.
  • Pulsatilla vulgaris Red Cloak is a great variety to grow from seed. Rubra is another red variety.

Seeds from Thompson & Morgan

Other Pulsatilla Facts
Pulsatilla vulgaris is the county flower for both Hertfordshire and Cambridgeshire.
Single flowers are followed by attractive fuzzy seedheads resembling those of clematis.
There is one double cultivar called Papageno

Passion flower Pulsatilla

Other Pulsatilla species  include:

Pulsatilla alpina
# Pulsatilla chinensis
# Pulsatilla grandis
# Pulsatilla halleri
# Pulsatilla montana
# Pulsatilla nigricans
# Pulsatilla patens
# Pulsatilla pratensis
# Pulsatilla vernalis
# Pulsatilla vulgaris
# Pulsatilla subslavica
# Pulsatilla cernua

Stokesia Laevis Aster Like Flowers

Stokesia Laevis Aster Like Flowers

Stokes’ aster is an unusual plant with large cornflower-like blooms on low growing plants, with rosettes of narrowly lance-shaped, dark-green leaves. It has a long flowering season, from mid-summer until the first severe frost in mid-autumn. The flowers are very good for cutting.
Stokes' Aster

Growing Conditions

  • An evergreen, Stokesia Laevis preferring acid soil, a sunny spot, and very good drainage. The roots may rot if plants are too wet in winter.
  • The long lasting flower heads are produced on plants 12-18 inches high with a similar spread.
  • The summer flowers are generally purplish/blue in a starry pattern and are ideal for cutting or attracting butterflies.
  • Stokesia laevis like good drainage, particularly in the winter, so a raised bed or rock garden may be worth trying.
  • Stokes’ Aster is a North American native wildflower with a double Shasta Daisy in effect.
  • Plants form a low mound of leathery green leaves, remaining evergreen in mild winter areas.

 

Selected Varieties

Stokesia Laevis Purple Parasols
Stokesia Laevis alba
Stokesia laevis ‘Blue Danube’ with 4 inch wide lavender flowerheads
Stokesia laevis ‘Wyoming’ has the darkest blue flowerheads of all
Stokesia laevis ‘Omega Skyrocket’ is a vigorous variety growing 3-4 ft tall and has long-stems of white to pale blue flower.

STOKESIA

Photo credits
Stokes’ Aster by BlueRidgeKitties CC BY-NC-SA 2.0 ‘These pretty flowers were planted at the Daniel Boone Native Gardens in Boone. They are native to North Carolina, but more at home in the coastal plains than in the mountains. They are commonly cultivated for garden use. If you have them in your yard, cutting the dying flowers before they set seeds will make the plants produce more flowers throughout the entire summer. ‘
STOKESIA by Swami Stream, CC BY 2.0
Stokes Aster by cmcgough CC BY-NC-ND 2.0

Stokes Aster

Growing and Pollinating Sweetcorn

Growing and Pollinating Sweetcorn

Peaches and Cream | 191/365
Sweetcorn is one of my favourite vegetables. Even when it comes out of a tin it is OK but fresh Sweetcorn boiled then smothered in butter is a treat that makes these plants well worth growing.

Planting Sweetcorn (Zea Mays).

  • Each seed is the shape and colour of a pip from a sweetcorn cob. They germinate quickly in warm conditions.
  • Sow seeds in mid spring 4 weeks before the last frost in your area.
  • Plant out 18in apart in blocks rather than rows when all danger of frost has passed,
  • Sweetcorn seed is available from Thompson & Morgan
  • If you try F1 hybrids don’t grow next to standard varieties or the cross pollination may cause the cobs to lose some of its sweetness.

Pollinating Sweetcorn and Growing On

  • Pollen from the male flowers, above, falls or is blown onto the female flowers or tassels, below, which when fertilised will form the cob.
  • To get good pollen distribution it is worth growing plants in square or rectangular blocks not long rows.
  • Hand pollination can be tried, dust female tassels with an open male flower or run your hand down the male flower and transfer the pollen onto the female tassels.
  • Once the silks or tassels start to form on the cobs regular watering is helpful.
  • To check that the cobs are ready to be picked pull back part of leaves covering them and squeeze one of the grains, if the liquid is thin and creamy, not watery, the cob is ready.

Sweetcorn Mini Vegetables

  • Miniature sweetcorn Minor produces tiny corn cobs for Chinese cooking and casseroles and crops in 64 days
  • The baby corn of Sweetcorn Minor are harvested before pollination just as the ‘silk tassels’ begin to show.
  • Sow seeds in mid spring 4 weeks before last expected frost in your area, singly ½in deep in 3in pots of compost.
  • Plant out 4-5in apart in rows 8in apart when all danger of frost has passed in blocks of short rows rather than one long row.
  • A warm sheltered position in fertile, moist yet free draining soil is best.
  • Plants will still grow tall, the only thing miniature is the cobs.
  • Keep free of weeds and water regularly.
  • Harvest the tiny cobs when the silks first show above the husks. What you are harvesting is the immature corn on the cob.
  • Under ideal conditions each plant should bear 4-6 cobs. If you forget to harvest on time a normal sweet corn will be produced.

sweetcorn - mini pop

Eating Sweetcorn

  • Miniature cobs are ideal raw, steamed, stir fried or with dips.
  • Also very tasty cooked, then tossed in parsley butter or served with a cream sauce.
  • Maincrop Sweetcorn are good when barbecued or grilled.
  • Sweetcorn adds starch to chicken or fish soup.

There are ‘mini corn’, ‘super sweet’, ornamental and traditional sweetcorn varieties waiting for you to try.
I don’t recommend more than one variety per season to avoid cross pollination which makes the kernels tough and poor eating.

Tips for Tender Sweetcorn not Green Giant

  • Sowings should be kept warm and dark
  • Plants must be grown on in the warm & allowed to get to 4″ plus before being planted out.
  • Plant out in square blocks of say 7 by 7 plants so they can help pollinate one another
  • Plant with low growing beans or peas to provide nitrogen at the roots.
  • Give a feed of nitrogen when the tassels have formed
  • Test if the cob is ripe by pinching the top of the cob inside the protective leaves. If it is pointed it needs longer but if it is flat it is ripe.
  • The traditional ripeness test is to open and squeeze a kernel to see if it is milky
  • Eat sweetcorn soon after picking whilst the sugars are at there best

Credits
“Peaches and Cream | 191/365 by mfhiatt CC BY-NC-SA 2.0
flickr.com/4074/4850146990_2196ec5d68. and /4120/4850147310_da417ac2b8.
sweetcorn – mini pop by Lucy Crosbie CC BY-NC-ND 2.0

Help Growing Dahlia from Seed

Help Growing Dahlia from Seed

Flowers-Dahlien

Description of Dahlia variabilis

  • Dahlias flower in late summer until the first hard frost.
  • Flowers are plentiful and very colourful
  • Tuber grown Dahlias can be 5 feet tall but the annual varieties we are suggesting are good bedding plants up to 12″ high.

Cultivation Tips for Dahlia

  • Dahila Bishops Childern is fiery mix of such striking colour, yet with the innocent flower faces of Bishop’s Children.
  • Mid-height, and blends extremely well into borders. However, be warned that a colour eruption may occur!
  • Spectacular in bedding and containers, and as a cut flower.Height: 60-75cm (24-30 inches). Planting distance 12-18 inches.
  • Treat Dahlias grown from seed as annuals. They grow and flower well enough to start again next year.

Special Growing Tips for Dahlia

  • Dahlia have been extensively bred and crossed since they were first discovered in Mexico
  • Flowers are now available in a wide variety of forms from plain single daisies to complex collarettes and cacti flowered plants

Varieties, Species and Types of Dahlia

  • Pompone have round heads of a self-colour but good mixes are available
  • Redskin, Bishops Childeren and Showpiece have dark almost purple leaves

Horticulture Sources and Advice

  • You can often obtain seeds or plants from our mail order company of choice Thompson & Morgan
  • They recommend seed sowing as follows ‘Sow February to April. Germinate at 20-30C on the surface of a good free draining, damp seed compost. Apply a layer of compost or vermiculite, ¼in deep. Place in a propagator or seal container inside a polythene bag until after germination which usually takes 7-21 days. Do not exclude light at any stage, as this helps germination.
  • Transplant seedlings when large enough to handle into trays or 3in pots. Grow on in cooler, well lit conditions for 10-15 days before planting out after all risk of frost, 12in apart.’

Dahlia pinnata (Dahlie Flamenco)

Credits
Flowers-Dahlien by uwelino CC BY-NC-SA 2.0
Dahlia pinnata (Dahlie Flamenco) by Acinet CC BY-NC-SA 2.0

Tips for Growing Sweet Violets – Viola odorata

Tips for Growing Sweet Violets – Viola odorata

A century ago Sweet Violets were part of the Victorian way of life. Florists and street vendors sold them and ladies carried or wore them. Since ancient Greek times and through medieval times Sweet Violets were more than a flower or scent, they were used as a sweetener, a deodorant and medicinal uses. They were also a symbol of love used on St Valentines day and there are many Violet stories surrounding Napoleon and Josephine where the flowers are still popular in France.

Gardeners Tips For Growing Sweet Violets

  • Grow from seed or propagate from the stolens (runners)
  • Sweet Violets like a moist soil.
  • Feed them with a high potash feed or low nitrogen feed to optimise the flowers.
  • Violas are very easy to grow and tolerate of most soil types.
  • Viola odorata are perfect for partial shade and once established multiply quickly.

Recognising Sweet Violets – Viola odorata

  • Viola odorata is a perennial that spreads by runners and grows about 4″ high.
  • In the wild they grow in light woodland or under a hedge row in a humus rich soil.
  • The scented flowers are available in white as well as the deep violet.
  • Viola odorata has short spurred flowers that are very fragrant and a dark – purpleish blue colour.
  • The leaves are rounded, almost heart shaped with crinkled edges.

Viola odorata var. subcarnea
Also available in Pink is the viola odorata subcarnea.

Other Links for Viola odorata

Read about Growing Dogs Tooth Violets
For other fragrant and scented plants read Gardeners Tips
Look at the Violet Group on Flickr

Viola varieties available from Thompson & Morgan

Credits
Sweet Violet by Strobilomyces cc
Viola odorata var. subcarnea by –Tico– CC BY-NC-ND 2.0
Maarts Viooltje by hans zwitzer CC BY-NC-SA 2.0

Maarts Viooltje

Growing Cosmos – Easy Annuals

Growing Cosmos – Easy Annuals

Cosmos

Cosmos! What a stonking name for a plant evoking all the constellations in the Universe.

Growing Cosmos

  • Cosmos flowers are a ring of broad petals and a center of disc florets similar to a daisy.
  • Cosmos flowers are 2-4 inches in diameter.
  • There is a lot of color variation including white, pink, orange, yellow, chocolate and scarlet colors.
  • Most Cosmos bloom heavily but die with first frost.
  • Leaves are fine and delicate and therefore the plants do not over shadow other flowers.
  • Cosmos get quite tall at up to four feet but in rich, fertile soils tend to produce unusually tall, lanky plants.

Cosmos

More Growing Tips from Seed

  • Smaller Cosmos are lovely in containers, showing off some of the finest lacy foliage of any annual.
  • Sow 3mm deep in spring at 21-24C in a good seed compost. Keep soil damp but not wet, sealing in a polythene bag after sowing is helpful.
  • Germination usually takes 5-10 days.
  • When seedlings are large enough to handle, transplant and grow on in cooler conditions.
  • Gradually acclimatise to outdoor conditions for 10-15 days before planting out after all risk of frost 60cm apart.
  • Plant in a sunny spot on light even poor quality well drained soil.

Cosmos
Useful Links

BBC Gardeners World – Gardening site of BBC

Royal Horticultural Society

Thompson Morgan seed varieties available

See more tips and help on Help growing Cosmos or search in the box center right.