Growing Delphiniums, Alaskan Style

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English Delphiniums,
Alaskan Style
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Delphiniums and Verbascums
Delphiniums and Verbascums

Growing English Delphiniums, Alaskan Style

1/22/06 -  We are a non-commercial web site that specializes in growing English delphiniums. Here you will find ideas on growing English delphiniums from seed indoors, thinning, fertilizing, and staking delphiniums too.   This is the home of the Alaska English Delphiniums Club dedicated to the sharing of the English delphinium elatum throughout the United States. Also, two experienced Alaskan gardeners share their gardens and ideas on growing other plants too. You can check out our main web site dedicated to gardening in Alaska, Gardening, Alaska Style.

Check out our English Delphiniums News page. Once you have grown these wonderful English delphiniums you may never want grow any other type of delphiniums. We have included some pictures from last year's visit to the English Delphinium Society show at Wisley, England, and from the 2004 English Delphinium Society show. Moreover, we have added pictures of English delphiniums from our new English delphinium display garden. Also, we have added some more stunning pictures to our English Cottage-Style Gardens page.




Growing Delphinium Seeds indoors - First which type of delphiniums you grow is essential. Most of the delphinium plants usually sold in the US are from the Pacific Giants strain, a old strain of delphiniums that does not come close in performance to the modern English delphinium Elatum cultivars. Unfortunately, it is nearly impossible and uneconomical to obtain English delphinium plants from England due to the UK very stringent Phytosanitary restrictions. So you might have to grow your own English delphinium plants from seed.

Catherine recommends joining the English Delphinium Society because they are a wealth of information, send you a color illustrated yearbook, and they send you free English delphinium seeds too. Although open-pollinated seeds tend to produce a mixed bunch of colors, mostly blues and purples, these plants will be of a much better quality than the Pacific Giants. Sounds good, but there’s more. Each fall the English Delphinium Society offers hand-crossed English delphinium seeds for members to purchase. These seeds will give you a better chance of obtaining the colors you might want.

My recommendation for growing delphinium seeds indoors is keep the delphinium seeds in the refigerator and start your delphinium seeds in a damp seeds starting mix. Dowdeswell delphiniums uses a damp sheet of newpaper on top of the delphinium seeds.


Close Up of Taplin's Treasure
English delphinium, Taplin's Treasure Close-up

Space - Once germinated the delphiniums should be planted out in their final home. Give them room to grow.  Catherine explains that by spacing the delphinium plants at least 18 inches to 2 feet apart, enables them to grow properly, and in a few years they will use up this space admirably.

Sun - Try to plant your delphiniums in full sun in a somewhat protected location because even the strongest plant can still snap in a fierce wind.

Soil - Ensure that your delphinium bed is rich in organic matter. Catherine uses compost and gives her soil a little rock phosphate and bone meal.

Part Two
  • Thinning English delphiniums
  • Fertilizing English delphiniums
  • Staking English delphiniums
Thinning English Delphiniums - Since “mature English delphiniums produce a considerable number of shoots, each spring... the plant will carry many small, poorly formed flowering spikes, on weak stems that will be prone to breakage and collapse.” Catherine recommends thinning the plants to just 3 shoots in their second year. This will put more energy into the rest of the plant resulting in a stronger canes and bigger florets. The third year thin to 5 shoots. From then on thin to 5-7 shoots. You should be rewarded with a plant that will draw admiring attention from your neighbors with such questions as, “What soil are you using. What are you fertilizing with?”

Staking English Delphiniums - As to staking your plants, the Delphinium Garden handbook says the best method  is to use three 4’0”  canes placed around each plant in a triangle and splayed outwards slightly towards the top(old bottle corks can be placed on the top of each cane so as to avoid nasty accidents). Approximately 1’0” of each cane should be planted in the ground. As the plants grow twine should be tied around the stakes so as to form a cage. For taller plants use 5’0” canes. Catherine says large tomato cages work well, too.

Fertilizing English Delphiniums -  Catherine adds a cup of bone meal to each mature plant in the spring. Also, she sprays the leaves with kelp meal, but definitely not liquid fertilizers which Catherine claims can cause the plant to grow deformed or “fasciated”. Last Catherine says, “WATER, WATER, WATER.” Catherine believes the Girdwood climate with all its rain generously contributes to her healthy looking delphinium plants.

When the plants spike has bloomed you can cut it off just below the flower heads and enjoy the blooms of the lateral spikes. Catherine does not let her plants go to seed so that they put all their energy back into the plants for next year. In the fall, Catherine cuts her plants back to the ground.

The English
delphinium elatum cultivars can live from 4-10 years, possibly with the pinks being the most short lived and the blues and purples the longest lived, but Catherine believes it is all down to heritage of each plant. If you get a plant that you really like you might want to take stem cuttings in the spring and root them in Perlite or potting soil to increase your stock. The Delphinium Society produces very detailed instructions on how to do this.

Tiger Eye at Wisley
  English delphinium, Tiger Eye

Catherine claims, South-central Alaska, especially Homer, is the perfect place for modern English delphinium cultivars. “If the plants get sufficient water they can thrive here.” Catherine hopes South-central Alaska will become the unofficial adopted home of the English delphinium. Furthermore, in the spring, delphiniums in South-central Alaska don’t end up being a feast for slugs and snails. In England, in the spring, slugs and snails are a major problem because they eat the new bud eyes and shoots. Slug and snail injury results in damaged florets,  leaving wounds to the crown of the plant making it susceptible to fungi and disease. South-central Alaska’s slug population aren’t very active until around July. By then the delphinium plants are well established and the slugs are of little concern.

If growing English delphiniums from seed is not your cup of tea there is some good news on the horizon. A superior strain of English delphiniums from New Zealand hybridized by Terry and Janice Dowdeswell are becoming more readily available here in Alaska. Called the called the New Zealand Hybrids these cultivars can be purchased from on the web.
(http://www.delphinium.co.nz)

Also another English Delphinium Society member, Dave Taplin has over 800 English and
New Zealand Hybrids delphiniums currently growing in trial beds. Dave is considering selling some of these delphiniums to nurseries next year. You may want to check out your local nursery to see if these plants start cropping up.

Picotee
 delphinium, Picotee

In  a few years you might have your own version of the English delphiniums, Sunkissed, Sungleam or the much sought after Lucia Sahin, and unlike A.A. Milne's poem you may soon have geraniums (blue) and delphiniums (red) growing in your garden bed.

For membership to the English Delphinium Society contact Shirley Bassett at http://www.david.bassett.care4free.net

or you can contact Shirley Bassett by mail
Mrs. S. E. Bassett
"Summerfield", Church Road
Biddestone, Chippenham,
Wiltshire SN14 7DP
ENGLAND

Seed Suppliers:
http://www.delphinium.co.nz

To purchase the book the Delphinium Garden
by the English Delphinium Society send $20 to

Dr. R. D. Beauchamp,
The Delphinium Society
2 The Grove, Ickenham,
Uxbridge,
Middlesex UB10 8QH
England
Telephone 011 44 1895 464694

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Alaskan Style
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©David Goodgame Any part of this document may be reproduced or utilized in any given form or by means provided proper citation and credit are given for the work and no cost dissemination is intended. Page layout updated 1/22/06If you are looking for a savage garden, gundam seed, or flower tatoos, you won't find them here.